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  • 151.
    Danielsson, William
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    React Native application development: A comparison between native Android and React Native2016Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Creating a mobile application often requires the developers to create one for Android och one for iOS, the two leading operating systems for mobile devices. The two applications may have the same layout and logic but several components of the user interface (UI) will differ and the applications themselves need to be developed in two different languages. This process is gruesome since it is time consuming to create two applications and it requires two different sets of knowledge. There have been attempts to create techniques, services or frameworks in order to solve this problem but these hybrids have not been able to provide a native feeling of the resulting applications.

    This thesis has evaluated the newly released framework React Native that can create both iOS and Android applications by compiling the code written in React. The resulting applications can share code and consists of the UI components which are unique for each platform. The thesis focused on Android and tried to replicate an existing Android application in order to measure user experience and performance. The result was surprisingly positive for React Native as some user could not tell the two applications apart and nearly all users did not mind using a React Native application. The performance evaluation measured GPU frequency, CPU load, memory usage and power consumption. Nearly all measurements displayed a performance advantage for the Android application but the differences were not protruding.

    The overall experience is that React Native a very interesting framework that can simplify the development process for mobile applications to a high degree. As long as the application itself is not too complex, the development is uncomplicated and one is able to create an application in very short time and be compiled to both Android and iOS.

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    React Native application development : A comparison between native Android and React Native
  • 152.
    Dimanche, Frédéric
    et al.
    SKEMA Business School.
    Keup, Mady
    SKEMA Business School.
    Prayag, Girish
    SKEMA Business School.
    Segelström, Fabian
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Holmlid, Stefan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    What is service design2012In: Service Design and Tourism: Case studies of applied research projects on mobile ethnography for tourism destinations / [ed] Marc Stickdorn, Birgit Frischhut, Norderstedt: Books on Demand , 2012, p. 10-21Chapter in book (Other academic)
    Abstract [en]

    Tourism becomes more and more transparent through social media and tourism review websites. Nowadays, it’s the individual guest’s experience that makes or breaks the success of a tourism product. Thus, the focus in tourism shifts from mere marketing communications to meaningful experiences. Service design thinking can provide an in-depth and holistic understanding of customers required to co-create meaningful experiences with guests.The book provides an introduction into service design and tourism and presents seven case studies of European tourism destinations, which used the app myServiceFellow as a mobile ethnography research tool to gain genuine customer insights. The book reports lessons learned of these case studies, gives managerial implications and an outlook on future research fields for service design in tourism.

  • 153.
    Djerf, Frithiof
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Andersson, Filip
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Att hantera sömmar i interaktiva system2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The purpose of this paper is to examine how seams in an interactive system should be managed. Seamsin this study refer to the boundaries that arise when users move between for example differentsoftware, products or positioning systems. These seams are a cornerstone of the relatively unexploredarea called seamful design, which is based on that users can avail highlighted seams through activeparticipation in the use of a system. To analyze this area, seamful design is applied to the developmentof an interface of a smoothie vending machine. This smoothie machine thus provides the analyzedinteractive system, which the research questions are applied to as well as answered by. The researchquestions are infused by seams and seamful design. More specifically, this paper questions how, whenand why these seams should be made visible or hidden. Another question stresses if the visualizationof seams can be applied to a smoothie machine and create distinct advantages in this system.

    To accomplish this, the project was divided in three separate phases. The first phase consisted ofexamining the conditions, environment and design of the service and the product. The second phaseconsisted of an iterative creation of concept proposals and usage of related methods. The third andfinal phase involved performing user tests, evaluating the interface and drawing conclusions about theformulated research questions.

    The project results are visualized partly by the final interface that was generated, and partly by theresults of the performed user tests during the third phase, which later came to form the basis for theconclusions that arose. The results included the understanding that the visualization of seams have thepotential to increase the task success rate, but at the same time may entail the risk of extending thetime it takes to perform a task. This was distinguished from the result of the test where the user wasgiven the task to place a cup in the machine. In one case, the seam was highlighted, while it was hiddenin the other. An additional result was that users expressed that seams could entail an advantage whenthe system was used repeatedly, while they in situations where they only used the system once, arguedthat it was beneficial to hide the seam because of lack of interest of the additional information.

    The conclusions based on this result, included both guidelines of how, when and why it is appropriateto highlight or hide seams, and also the finding that that seamful design has potential to be applied toa smoothie machine with clear benefits. The first of these guidelines implies that seams should behidden in systems which focus on performance and efficiency, as there is a risk that the usage time isprolonged when the seam is highlighted. Another guideline states that seams should be hidden whenmanipulation of the system could entail a serious risk, due to that users in most cases create a deeperunderstanding of the underlying technology when the seams are highlighted. On the contrary, insystems where possible manipulation entails no significant risk, seams may be highlighted to facilitatean individual use of the system. Furthermore, it is advantageous to highlight seams when a repeateduse of the system occurs, because of the fact that many users expressed that they pay greater attentionto seams when they have acquired some familiarity with the interface. Finally, perhaps the mostimportant aspect when a seam is about to be highlighted, is to make sure that the user physically canact and respond to the additional information that comes with the seam.

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  • 154.
    Dodla, Krishna Chaitanya
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Does environment affect the user experience?2012Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Many organizations use the internet to reach out to their customers and also offer many services through their websites. Organizations prefer usability study on their developed systems to compare their product/system with the competitors and also to find the difficulties, while real users work on the system. Usability helps organizations to know whether targeted users are able to use the developed system without any problems. Usability testing normally takes place in a controlled environment and conclusions are drawn based on the obtained results. But today’s world has entirely changed with the introduction of better technologies and the people are using products everywhere with the help of portable devices like smart phones, tablet pc devices, portable laptops etc.

    Many researches previously experimented to evaluate the noise effects on participant’s performance and then derived conclusions of its effects. This research is aimed to find the chances of the results of usability testing getting effected in noisy environment compared to controlled environment. Task-Based Usability testing technique was used to find the noise effects in terms of task success rate and task completion time and also, SUS (System Usability Scale) is used to calculate changes in user’s assessments.

    Total 30 participants had participated in this study and all the participants were divided into two groups each consisting of 15 participants. One of the groups has participated in usability testing on selected websites in noisy environment while another group in normal environment. This study produced two different results; first result proves the task success rate and task completion times were affected by the noisy environment and user’s performance was better in calm environment compared to noisy environment. Second result shows user’s assessment IS not affected in any environment. The above situations have been discussed in detail.

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    Does environment affect the user experience?
  • 155.
    Dogan, Haci
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Case Study of Development of a Web Community With ASP.NET MVC 52014Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This thesis is a qualitative study, case study, of development of a social web application for Wallyfy. The development framework and architectural choices were Microsoft’s ASP.NET with MVC architecture. By utilizing the case study methodology this thesis tries to give an understanding of the phenomena, project development with the chosen tools, in a natural environment.

    It is noticed that unforeseen variables might affect the development project and the maintainability of the application over time. This case study shows that the chosen development framework and the architecture enables system developers to meet future changes and demands.

    This thesis also shows that case study research methodology is a good tool to study a real life phenomena in its natural environment in software engineering. The case study research is a very wide area of research methodology that can be used out of several different perspectives, therefore it is necessary to have a clear view of perspective for the research.

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  • 156.
    Dragisic, Zlatan
    et al.
    Linköping University, Department of Computer and Information Science, Database and information techniques. Linköping University, The Institute of Technology.
    Lambrix, Patrick
    Linköping University, Department of Computer and Information Science, Database and information techniques. Linköping University, The Institute of Technology.
    Blomqvist, Eva
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Integrating Ontology Debugging and Matching into the eXtreme Design Methodology2015In: Proceedings of the 6th Workshop on Ontology and Semantic Web Patterns (WOP 2015) / [ed] Eva Blomqvist; Pascal Hitzler; Adila Krisnadhi; Tom Narock; Monika Solanki, Rheinisch-Westfaelische Technische Hochschule Aachen University , 2015Conference paper (Refereed)
    Abstract [en]

    Ontology design patterns (ODPs) and related ontology development methodologies were designed as ways of sharing and reusing best practices in ontology engineering. However, while the use of these reduces the number of issues in the resulting ontologies defects can still be introduced into the ontology due to improper use or misinterpretation of the patterns. Thus, the quality of the developed ontologies is still a major concern. In this paper we address this issue by describing how ontology debugging and matching can be integrated in a state-of-the-art ontology development methodology based on ontology design patterns- the eXtreme Design methodology, and show the advantages in a case study based on a real world ontology.

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  • 157.
    Drewes, Frank
    et al.
    Umeå University.
    Knight, Kevin
    University of Southern California, Information Sciences Institute.
    Kuhlmann, Marco
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Formal Models of Graph Transformation in Natural Language Processing (Dagstuhl Seminar 15122)2015In: Dagstuhl Reports, ISSN 2192-5283, Vol. 5, no 3, p. 143-161Article in journal (Other academic)
    Abstract [en]

    In natural language processing (NLP) there is an increasing interest in formal models for processing graphs rather than more restricted structures such as strings or trees. Such models of graph transformation have previously been studied and applied in various other areas of computer science, including formal language theory, term rewriting, theory and implementation of programming languages, concurrent processes, and software engineering. However, few researchers from NLP are familiar with this work, and at the same time, few researchers from the theory of graph transformation are aware of the specific desiderata, possibilities and challenges that one faces when applying the theory of graph transformation to NLP problems. The Dagstuhl Seminar 15122 “Formal Models of Graph Transformation in Natural Language Processing” brought researchers from the two areas together. It initiated an interdisciplinary exchange about existing work, open problems, and interesting applications.

  • 158.
    Dórea, Fernanda C.
    et al.
    Department of Disease Control and Epidemiology, National Veterinary Institute, Sweden.
    Vial, Flavie
    Epi-Connect, Skogås, Sweden.
    Hammar, Karl
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering. Department of Computer Science and Informatics, Jönköping University, Sweden.
    Lindberg, Ann
    Department of Disease Control and Epidemiology, National Veterinary Institute, Sweden.
    Lambrix, Patrick
    Linköping University, Department of Computer and Information Science, Database and information techniques. Linköping University, Faculty of Science & Engineering.
    Blomqvist, Eva
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Revie, Crawford W.
    Atlantic Veterinary College, University of Prince Edward Island, Canada.
    Drivers for the development of an Animal Health Surveillance Ontology (AHSO)2019In: Preventive Veterinary Medicine, ISSN 0167-5877, E-ISSN 1873-1716, Vol. 166, no 1, p. 39-48Article in journal (Refereed)
    Abstract [en]

    Comprehensive reviews of syndromic surveillance in animal health have highlighted the hindrances to integration and interoperability among systems when data emerge from different sources. Discussions with syndromic surveillance experts in the fields of animal and public health, as well as computer scientists from the field of information management, have led to the conclusion that a major component of any solution will involve the adoption of ontologies. Here we describe the advantages of such an approach, and the steps taken to set up the Animal Health Surveillance Ontological (AHSO) framework. The AHSO framework is modelled in OWL, the W3C standard Semantic Web language for representing rich and complex knowledge. We illustrate how the framework can incorporate knowledge directly from domain experts or from data-driven sources, as well as by integrating existing mature ontological components from related disciplines. The development and extent of AHSO will be community driven and the final products in the framework will be open-access.

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  • 159.
    Edforss Fuchs, Inger
    et al.
    Västra Ramlösa skola, Helsingborg.
    Arvola, Mattias
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Nyman, Ingemar
    Miljöverkstaden, Helsingborg.
    Szczepanski, Anders
    Linköping University, Department of Culture and Communication, Arts, Crafts and Design. Linköping University, Faculty of Arts and Sciences.
    Final reporting for the VASS project: The virtual world meets the authentic world in sensuous and integrated learning2015Report (Other academic)
    Abstract [en]

    The starting point for the Vass project was to conduct a closer examination of how ICT works in an outdoor educational and curriculum controlled context with students in years 4, 5, 6 and 7. VASS stands for virtual world meets a real in sensuous and integrated learning.

    The VASS project has been carried out by Västra Ramlösa school and Miljöverkstaden in Helsingborg as well as National Centre for Outdoor Education (NCU) and SICS East Swedish ICT both based at Linköping University. The project, which has run during the period 2012 – 2015, was made possible through support from the Marcus and Amalia Wallenberg foundation with 1,3 million SEK. Inger Edforss Fuchs, teacher leader at Västra Ramlösa School in Helsingborg has been the project leader.

    The project had three main starting points

    • The teaching is based on a curriculum which gives the starting point for the teaching and learning in school and therefore also for lessons connected to the project.
    • Where we conduct the teaching, meaning the relation to place, is of great importance for the students’ learning. This pedagogical perspective and outlook related to the where-aspect of teaching and learning characterises outdoor education.
    • Teaching in an outdoor educational context can be carried out with the help of ICT.

    There are a number of different examples of the use of ICT in combination with outdoor education, but the focus of this particular project was the close connection to the curriculum and its targets where outdoor education was included as a starting point.

    We choose to present the project here through four different essays which all represent different perspectives. Inger Edforss Fuchs starts by describing the work that has been carried out at her school in Helsingborg. Ingemar Nyman wants to show the gains in environmental theory of pedagogy the schools can make by using IT in outdoor pedagogical work. Mattias Arvola, who does research on the interface between people and digital devices, describes the development work that has been carried out within the framework for the project in his department at Linköping University. In the last essay Anders Szczepanski shares his view of how IT supported outdoor educational work affects the way students and teachers look at learning.

    We would like to thank the Marcus and Amalia Wallenberg foundation for wanting to support this project. Without their help it would not have been possible to carry out the project, which would also have meant that we would not have got this far in the important work on developing the schools’ use of ICT in a curriculum based and outdoor educational context.

    Helsingborg June 2015

    Inger Edforss Fuchs

    Project leader

    Mattias Arvola

    Ingemar Nyman

    Anders Szczepanski

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    Final reporting for the VASS project: The virtual world meets the authentic world in sensuous and integrated learning
  • 160.
    Edforss Fuchs, Inger
    et al.
    Västra Ramlösa skola, Helsingborg.
    Arvola, Mattias
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Nyman, Ingemar
    Miljöverkstaden, Helsingborg.
    Szczepanski, Anders
    Linköping University, Department of Culture and Communication, Arts, Crafts and Design. Linköping University, Faculty of Arts and Sciences.
    Slutrapportering av VASS-projektet “Virtuell värld möter autentisk värld i ett sinnligt, samlat lärande"2015Report (Other academic)
    Abstract [en]

    Utgångspunkten för VASS-projektet var att närmare undersöka hur IKT fungerar i ett utomhuspedagogiskt och läroplansstyrt sammanhang med elever i årskurs 4, 5, 6 och 7. VASS står för virtuell värld möter en reell i ett sinnligt och samlat lärande.

    VASS-projektet har genomförts av Västra Ramlösa skola och Miljöverkstaden i Helsingborg samt Nationellt för centrum i utomhuspedagogik (NCU) och SICS East Swedish ICT Research Faculty båda vid Linköpings universitet. Projektet, som löpt under tiden 2012 – 2015, blev möjligt efter stöd från Marcus och Amalia Wallenbergs minnesfond på 1,3 miljoner kronor. Projektledare har varit Inger Edforss Fuchs som är förstelärare på Västra Ramlösa skola i Helsingborg.

    Det fanns tre huvudsakliga utgångspunkter i projektet:

    • Undervisningen styrs av en läroplan som ger en utgångspunkten för undervisningen i skolan och därmed också för lektioner som kopplats till projektet.
    • Var vi bedriver undervisningen, det vill säga platsrelationen, har en stor betydelse för elevernas lärande. Detta pedagogiska perspektiv och grundsyn relaterad till undervisningen och lärandets var-aspekt karakteriserar utomhuspedagogik.
    • En undervisning i ett utomhuspedagogiskt sammanhang kan bedrivas med hjälp av IKT.

    Det finns en del olika exempel på att använda IKT i kombination med utomhuspedagogik, men det centrala i just det här projektet var den nära anknytningen till läroplanen och dess mål där utomhuspedagogiken fanns med som en utgångspunkt.

    Vi väljer här att redovisa projektet med fyra olika essäer som var och en representerar olika perspektiv. Inger Edforss Fuchs inleder med att beskriva det arbete som bedrivits på hennes skola i Helsingborg. Ingemar Nyman vill framhålla de miljöpedagogiska vinster som skolorna kan nå genom att använda IT i ett utomhuspedagogiskt arbete. Mattias Arvola, som forskar i gränsytan mellan människa och digitala enheter, beskriver det utvecklingsarbete som bedrivits inom projektets ram på hans enhet vid Linköpings universitet. Till sist så ger Anders Szczepanski sin syn på hur ett utomhuspedagogiskt arbete, som är IT understött, påverkar elever och lärares syn på lärandet.

    Till sist vill vi tacka Marcus och Amalia Wallenbergs minnesfond för att de ville understödja projektet. Projektet hade inte kommit till stånd utan och vi hade då inte heller kunnat nå så långt med det viktiga arbetet med att utveckla skolornas användning av IKT i ett läroplansstyrt och utomhuspedagogiskt sammanhang.

    Helsingborg i juni 2015

    Inger Edforss Fuchs, Projektledare

    Mattias Arvola

    Ingemar Nyman

    Anders Szczepanski

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  • 161.
    Edling, Erik
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Östergren, Emil
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    An analysis of microservice frameworks2017Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    Microservice architecture has entered the industry to solve some of the problems with the monolithic architecture. However, this architecture comes with its own set of problems. In order to solve the microservice architecture problems while also providing additional functionalities, microservice frameworks have been developed. In this thesis, microservice frameworks were compared and thereafter two were chosen to implement a small part of a large monolithic system as microservices. This was done in order to see how well they could implement the different functionalities that the frameworks provided in relation to the benefits and the cross-cutting concerns of the microservice architecture which are concerns that is applicable to the entire system. The results showed that the frameworks embraced the benefits of the microservice architecture in the aspects of maintainability and scalability. However, in the terms of being able to change frameworks in the pursuit of newer technologies there were problems. Some functionalities such as service discovery requires all of the new services created to use the same mechanism in order to create a unified system. There were also problems caused by the load balancing mechanism provided by the frameworks used in this thesis. The load balancing mechanism made the system unable to send large data files which was crucial for the system that was to be implemented as a microservice system.

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    An analysis of microservice frameworks
  • 162.
    Edqvist, Elias
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Chilangwa, Artur
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Chattbot som assistent vid ett IT-konsultbolag2019Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [sv]

    Intresset för chattbotar är idag mycket stort och de används i många olika områden. Det finns många tillvägagångssätt för att implementera chattbotar, ett av dessa sätt är med verktyget Hubot. Detta arbete undersöker hur effektiv en chattbot utvecklad med Hubot är med avseende på användbarhet och responstid. Användbarheten bedömdes med hjälp av System Usablity Scale (SUS) med 8 testpersoner. Resultatet visade att chattboten hade en relativt låg användbarhet (64,38 poäng enligt SUS), men mycket snabba responstider. Detta indikerade att Hubot inte är en effektiv chattbotlösning i detta arbetes kontext

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  • 163.
    Einarsson, Anna
    et al.
    Royal Coll Mus Stockholm, Sweden.
    Ziemke, Tom
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering. University of Skovde, Sweden.
    Exploring the Multi-Layered Affordances of Composing and Performing Interactive Music with Responsive Technologies2017In: Frontiers in Psychology, ISSN 1664-1078, E-ISSN 1664-1078, Vol. 8, article id 1701Article in journal (Refereed)
    Abstract [en]

    The question motivating the work presented here, starting from a view of music as embodied and situated activity, is how can we account for the complexity of interactive music performance situations. These are situations in which human performers interact with responsive technologies, such as sensor-driven technology or sound synthesis affected by analysis of the performed sound signal. This requires investigating in detail the underlying mechanisms, but also providing a more holistic approach that does not lose track of the complex whole constituted by the interactions and relationships of composers, performers, audience, technologies, etc. The concept of affordances has frequently been invoked in musical research, which has seen a "bodily turn" in recent years, similar to the development of the embodied cognition approach in the cognitive sciences. We therefore begin by broadly delineating its usage in the cognitive sciences in general, and in music research in particular. We argue that what is still missing in the discourse on musical affordances is an encompassing theoretical framework incorporating the sociocultural dimensions that are fundamental to the situatedness and embodiment of interactive music performance and composition. We further argue that the cultural affordances framework, proposed by Rietveld and Kiverstein (2014) and recently articulated further by Ramstead et al. (2016) in this journal, although not previously applied to music, constitutes a promising starting point. It captures and elucidates this complex web of relationships in terms of shared landscapes and individual fields of affordances. We illustrate this with examples foremost from the first authors artistic work as composer and performer of interactive music. This sheds new light on musical composition as a process of construction-and embodied mental simulation-of situations, guiding the performers and audiences attention in shifting fields of affordances. More generally, we believe that the theoretical perspectives and concrete examples discussed in this paper help to elucidate how situations-and with them affordances-are dynamically constructed through the interactions of various mechanisms as people engage in embodied and situated activity.

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  • 164.
    Ekholm, David
    et al.
    Linköping University, Department of Culture and Society, Division of Social Work. Linköping University, Faculty of Arts and Sciences.
    Holmlid, Stefan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Formalizing sports-based interventions in cross-sectoral cooperation: Governing and infrastructuring practice, program, and preconditions2020In: Journal of Sport for Development, ISSN 2330-0574, no 14Article in journal (Refereed)
    Abstract [en]

    Sports-based interventions are utilized today in many countries in cross-sectoral cooperation, for instance, as a means of social inclusion. However, not enough is known about the conditions of development or the formalization of operations. Accordingly, in this article, we focus on two instances of midnight football carried out in two suburban areas in Sweden in order to explore the mechanisms and conditions for interventions to achieve increased formalization and sustained operation. Through an analysis of interviews and network visualizations, we examine how collaborating agencies conceive of and describe their role in the assemblages of agencies surrounding and enabling the interventions. By looking closely at the forms of collaboration and communication in these networks, we find that the interventions have developed locally and not according to a central or strategic design. We identify three levels of design within the interventions, where communication, cooperation, and formalization can be governed: practice, program, and preconditions. Through a detailed analysis of these levels of intervention, we present crucial mechanisms for increased formalization and sustained operation and how these mechanisms differ between sites. In conclusion, on the basis of our analysis, we discuss refined approaches to understanding the temporality and interchangeability in the formation of cooperation and thus offer a refined conceptualization of the formalization of operations.

  • 165.
    Ekholm, David
    et al.
    Linköping University, Department for Studies of Social Change and Culture, Centre for Municipality Studies – CKS. Linköping University, Faculty of Arts and Sciences.
    Holmlid, Stefan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Idrott för integration – så blir satsningen hållbar2018In: Svensk Idrottsforskning: Organ för Centrum för Idrottsforskning, ISSN 1103-4629, no 25 oktoberArticle in journal (Other (popular science, discussion, etc.))
    Abstract [sv]

    Idrott används allt oftare som verktyg för integration och mot utanförskap. Midnattsfotboll är ett exempel. Hur organiserar man en sådan verksamhet och vad är avgörande för att den ska fungera långsiktigt?

    Det blir allt vanligare att använda idrott som ett verktyg för sociala ändamål, både internationellt och i Sverige. Ofta sker det i samverkan mellan kommuner och idrottsföreningar.

    Vi studerar två fall av så kallad Midnattsfotboll i två svenska städer. Verksamheten arrangeras i samverkan mellan en nationell stiftelse, lokala idrottsföreningar, kommun och sponsorer. Vi tittar på hur man går tillväga för att etablera respektive verksamhet, för att identifiera vad som är viktigt för att de ska överleva och bli långsiktiga.

  • 166.
    El Ghoul, Fares
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Heuristisk Utvärdering av Tidningsställ: Att utvärdera icke-interaktiva gränssnitt2013Independent thesis Basic level (degree of Bachelor), 12 credits / 18 HE creditsStudent thesis
    Abstract [sv]

    Syftet med projektet är att utveckla heuristiker lämpade för utvärdering av ett tidningsställ samt att testa dessa heuristiker genom att utföra en heuristisk utvärdering på två tidningsställ. Skapandet av nya heuristiker skedde iterativt i olika steg och granskades av utomstående personer under processen. Efter flera omskrivningar testades heuristikerna och deras relevansvärde i ett mindre test av tre försökspersoner. Efter att de nya heuristikerna färdigställts återstod det att utföra en formell heuristisk utvärdering av de båda tidningsställen utifrån de färdigställda heuristikerna. Den heuristiska utvärderingen som utfördes skedde i enlighet med Nielsens metod och även i enlighet med Baker et al. (2002). Med hjälp av heuristikerna lyckades försökspersonerna upptäcka alla tidigare upptäckta allvarliga problem och nästan alla tidigare upptäckta mindre allvarliga problem. Detta tyder på att heuristikerna var lämpade att användas till heuristiska utvärderingar av tidningsställ. Utvärderingen visade även att det finns en skillnad mellan de båda tidningsställena och att den nyare modellen är en klar förbättring över den gamla.

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    Heuristisk utvardering av tidningsstall
  • 167.
    Eldén, Lars
    et al.
    Linköping University, Department of Mathematics, Computational Mathematics. Linköping University, The Institute of Technology.
    Merkel, Magnus
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Ahrenberg, Lars
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Fagerlund, Martin
    Linköping University, Department of Mathematics, Computational Mathematics. Linköping University, The Institute of Technology.
    Computing Semantic Clusters by Semantic Mirroring and Spectral Graph Partitioning2013In: Mathematics in Computer Science, ISSN 1661-8270, Vol. 7, p. 293-313Article in journal (Refereed)
    Abstract [en]

    Using the technique of semantic mirroring a graph is obtained that represents words and their translationsfrom a parallel corpus or a bilingual lexicon. The connectedness of the graph holds information about the semanticrelations of words that occur in the translations. Spectral graph theory is used to partition the graph, which leadsto a grouping of the words in different clusters. We illustrate the method using a small sample of seed words froma lexicon of Swedish and English adjectives and discuss its application to computational lexical semantics andlexicography.

  • 168.
    Engström, André
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Gymlog, en webbapplikation för personer som är vana att träna på gym2013Independent thesis Basic level (university diploma), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [sv]

    Syftet med denna rapport är att undersöka om det går att utveckla en användbarwebbapplikation som underlättar resultathantering för vana gymutövare. Eftersomrapporten endast fokuserar på vana gymutövare, undkommer webbapplikationenproblemet med alldeles för mycket valmöjligheter som gör den osmidig. Vidareundersöks om webbapplikationen även kan motivera användaren till bättre prestationer.Webbapplikationen är utvecklad med hjälp av de grafiska gränssnittskomponenterna somSmart GWT tillhandahåller. Rapporten innehåller en teoretisk bakgrund till deutvecklingsverktyg som använts för att ta fram webbapplikationen.I resultatet framgår att det finns potential att ta fram en fullt fungerande webbapplikationför vana gymutövare. I dagsläget går det dock inte att utvärdera webbapplikationen fulltut då den befinner sig i ett tidigt stadium av utvecklingsprocessen. Då applikationenerbjuder viss inmatning och visualisering av resultat kan detta ge motivation tillanvändaren, genom att de har möjlighet att jämföra sina prestationer. Vidare framgår det iresultatet att det bör finnas ett komplement till inmatning för att det ytterligare skaunderlätta resultathanteringen för användaren.

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  • 169.
    Erhard-Olsson, Niklas
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Procedural Generation of 2D Levels for a Motion-based Platformer Game in Unity with Large Amount of Movement2018Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This thesis mainly describes and implements a new way of analyzing motion generated when playing a motion controlled game. It also describes the implementation of automatic level generation together with the utilization of Unitys excellent new 2D tools. The motion controller used to play the prototype game is ported and implemented with Unitys own shader language and stored as a reusable prefab for any Unity project. A new specific method of analyzing the motion mapped to the level is implemented in Unity. Some game specific analysises is presented with the said method, and examples of how the method can be used for more and richer analysis’s is discussed.

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  • 170.
    Ericsson, Anna
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Informationsbehov hos förstainsatspersoner, SOS Alarm och blåljusaktörer vid räddningsinsatser2013Independent thesis Basic level (degree of Bachelor), 12 credits / 18 HE creditsStudent thesis
    Abstract [sv]

    Tillgång till relevant information är av stor vikt för SOS Alarm, polis, ambulans, räddningstjänst och förstainsatspersoner. Likaså kan brist på information försvåra en räddningsinsats då det kan orsaka en försämrad situationsmedvetenhet hos aktörerna som kan göra det svårare för dem att fatta goda beslut. En utforskande studie utfördes för att ge en första inblick i vilken information som är viktig för dessa aktörer, vilken information de använder sig av, vilken information de saknar och hur tillgången till information kan påverka situationsmedvetenheten hos aktörerna. Semistrukturerade intervjuer med Critical decision method som utgångspunkt utfördes med nio deltagare där fokus låg på informationsbehov. Två huvudsakliga informationsområden visade sig vara en beskrivning av olyckan och dess geografiskt läge. En del försvårande omständigheter som kan förhindra flödet av information mellan aktörerna kunde även urskiljas. Ett vanligt förekommande problem, framförallt för SOS Alarm och blåljusaktörer, är att förstainsatspersoner inte alltid stannar på olycksplatser vilket kan orsaka en brist på information både gällande olyckans geografiska läge och detaljer kring vad som hänt. Utifrån det uppkomna resultatet föreslås att den teknik som nyttjas i framtiden bör utvecklas så att den stödjer aktörernas situationsmedvetenhet.

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  • 171.
    Eriksson, Daniel
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Algorithmic Design of Graphical Resources for Games Using Genetic Algorithms2017Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    Producing many varying instances of the same type of graphical resource for games can be of interest, such as trees or foliage. But when randomly generating graphical resources, you can often end up with many similar looking results or perhaps results that doesn't look like what it is meant to look like. This work investigates whether genetic algorithms can be applied to produce greater varying results when generating graphical resources by basing the fitness of each individual for each genetic generation on how similar the graphical resource is to previously generated resources. This work concludes from the limited work that was performed that while it seems possible that the use of genetic algorithms might be able to produce visually different graphical resources, Blender currently doesn't seem to be able to produce enough results in a reasonable time frame for this to be usable on a large scale.

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  • 172.
    Eriksson, Henrik
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Timpka, Toomas
    Linköping University, Department of Medical and Health Sciences, Division of Community Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Center for Health and Developmental Care, Center for Public Health. Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Spreco, Armin
    Linköping University, Department of Medical and Health Sciences, Division of Community Medicine. Linköping University, Faculty of Medicine and Health Sciences.
    Dahlström, Örjan
    Linköping University, Department of Medical and Health Sciences. Linköping University, Faculty of Medicine and Health Sciences.
    Strömgren, Magnus
    Dept. of Social and Economic Geography, Umeå University, Umeå, Sweden.
    Holm, Einar
    Dept. of Social and Economic Geography, Umeå University, Umeå, Sweden.
    Dynamic Multicore Processing for Pandemic Influenza Simulation.2016In: AMIA Annual Symposium Proceedings, American Medical Informatics Association , 2016, Vol. 2016, p. 534-540Conference paper (Refereed)
    Abstract [en]

    Pandemic simulation is a useful tool for analyzing outbreaks and exploring the impact of variations in disease, population, and intervention models. Unfortunately, this type of simulation can be quite time-consuming especially for large models and significant outbreaks, which makes it difficult to run the simulations interactively and to use simulation for decision support during ongoing outbreaks. Improved run-time performance enables new applications of pandemic simulations, and can potentially allow decision makers to explore different scenarios and intervention effects. Parallelization of infection-probability calculations and multicore architectures can take advantage of modern processors to achieve significant run-time performance improvements. However, because of the varying computational load during each simulation run, which originates from the changing number of infectious persons during the outbreak, it is not useful to us the same multicore setup during the simulation run. The best performance can be achieved by dynamically changing the use of the available processor cores to balance the overhead of multithreading with the performance gains of parallelization.

  • 173.
    Eriksson, Joel
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Utveckling av ett verktyg för länkning och bedömning av översättningar2015Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [sv]

    Idag finns det m˚anga system f¨or att bed¨oma och tolka ¨overs¨attningar av texter. Det finns system som l¨ankar delar av en k¨alltext och en ¨overs¨attning, det finns en ¨aven tekniker f¨or att bed¨oma ¨overs¨attningar f¨or ge ett m˚att p˚a hur bra de ¨ar. Ett exempel p˚a en s˚adan teknik ¨ar Token Equivalence Method(TEM). Det finns dock f˚a program, om n˚agra, som utnyttjar b˚ade l¨ankning och bed¨omning p˚a ett s˚adant s¨att att de skulle kunna vara anv¨andbara vid till exempel spr˚akutbildningar. I detta arbete utvecklas just ett s˚adant program. Programmet som skapats kan segmentera och l¨anka parallella texter mot varandra helt automatiskt via inkopplade system. F¨or att ¨oka anv¨andarv¨anligheten s˚a visualiserar programmet ¨aven l¨ankningen och till˚ater redigering av b˚ade segmentering och l¨ankning. L¨ankningen utnyttjas sedan f¨or att r¨akna ut och visa delar av TEM f¨or att ge ett m˚att p˚a ¨overs¨attningens kvalit´e.

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  • 174.
    Eriksson, Nils
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Ärleryd, Christofer
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Elmulating JavaScript2016Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Functional programming has long been used in academia, but has historically seen little light in industry, where imperative programming languages have been dominating. This is quickly changing in web development, where the functional paradigm is increasingly being adopted.

    While programming languages on other platforms than the web are constantly competing, in a sort of survival of the fittest environment, on the web the platform is determined by the browsers which today only support JavaScript. JavaScript which was made in 10 days is not well suited for building large applications. A popular approach to cope with this is to write the application in another language and then compile the code to JavaScript. Today this is possible to do in a number of established languages such as Java, Clojure, Ruby etc. but also a number of special purpose language has been created These are languages that are made for building front-end web applications. One such language is Elm which embraces the principles of functional programming. In many real life situation Elm might not be possible to use, so in this report we are going to look at how to bring the benefits seen in Elm to JavaScript.

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  • 175.
    Esperance Rodrigues, Vanessa
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Holmlid, Stefan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Discovering Service Variations through Service Prototyping2017In: The Design Journal, ISSN 1460-6925, E-ISSN 1756-3062, Vol. 20, p. S2247-S2257Article in journal (Refereed)
    Abstract [en]

    Designing services require embracing the variability that makes it unique. This paper investigates how the use of a service prototyping technique enables participants to explore the variations inherent in services. The video data are analyzed using qualitative content analysis and the articulated variations are abstracted as categories. The resulting categories are then mapped across the service logic framework and the corresponding provider, joint and patient spheres. This paper aims to contribute to research on service prototyping by augmenting the use of prototyping methods to gain an understanding of the sources and possibly types of variations in a particular service. It clarifies how prototyping a service allows people untrained in design to diagnose variations that may occur in a future service and the decision-making process in accommodating variation. Further, the knowledge gained enables improved value co-creation opportunities in a service.

  • 176.
    Fagerström, Johan
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Bång, Magnus
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Wilhelms, Daniel
    Linköping University, Department of Medical and Health Sciences, Division of Drug Research. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Local Health Care Services in Central Östergötland, Department of Emergency Medicine in Linköping.
    Chew, Michelle
    Linköping University, Department of Medical and Health Sciences, Division of Drug Research. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Anaesthetics, Operations and Specialty Surgery Center, Department of Anaesthesiology and Intensive Care in Linköping (ANOPIVA).
    LiSep LSTM: A Machine Learning Algorithm for Early Detection of Septic Shock2019In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 9, article id 15132Article in journal (Refereed)
    Abstract [en]

    Sepsis is a major health concern with global estimates of 31.5 million cases per year. Case fatality rates are still unacceptably high, and early detection and treatment is vital since it significantly reduces mortality rates for this condition. Appropriately designed automated detection tools have the potential to reduce the morbidity and mortality of sepsis by providing early and accurate identification of patients who are at risk of developing sepsis. In this paper, we present "LiSep LSTM"; a Long Short-Term Memory neural network designed for early identification of septic shock. LSTM networks are typically well-suited for detecting long-term dependencies in time series data. LiSep LSTM was developed using the machine learning framework Keras with a Google TensorFlow back end. The model was trained with data from the Medical Information Mart for Intensive Care database which contains vital signs, laboratory data, and journal entries from approximately 59,000 ICU patients. We show that LiSep LSTM can outperform a less complex model, using the same features and targets, with an AUROC 0.8306 (95% confidence interval: 0.8236, 0.8376) and median offsets between prediction and septic shock onset up to 40 hours (interquartile range, 20 to 135 hours). Moreover, we discuss how our classifier performs at specific offsets before septic shock onset, and compare it with five state-of-the-art machine learning algorithms for early detection of sepsis.

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  • 177.
    Fahlborg, Daniel
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Rennes, Evelina
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering. RISE SICS East, Linköping, Sweden.
    Introducing SAPIS – an API Service for Text Analysis and Simplification2016Conference paper (Refereed)
    Abstract [en]

    In several projects, we are developing tools and techniques for simplifying and analyzing textual data, aiming to enhance the accessibility of texts. We present SAPIS, an API service by which these techniques can be reached from a remote server. The API currently involves four running services, and is designed for easy implementation of new services. SAPIS aims to reach professional or daily users interested in the simplification and analysis of texts.

  • 178.
    Falk, Joakim
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Usability guided development of a participant database system2018Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    This project consisted of the development of a web based participant database system to replace a spreadsheet based one for the project “Vi Ses! Språkvänner i Linköping” and the evaluation of it. The design and implementation was done iteratively using a collection of usability guidelines as well as the results of a set of user tests. User tests were also used for the evaluation of the web database system. The task during the user tests was participant matching and the main measurement taken was task completion time.

    The project resulted in a web database system that could fully replace the spreadsheet database system. The evaluation tests showed that this system was both faster to match participants in as well as less error prone.

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    Usability guided development Thesis
  • 179.
    Falkenjack, Johan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Towards a Model of General Text Complexity for Swedish2018Licentiate thesis, monograph (Other academic)
    Abstract [en]

    In an increasingly networked world, where the amount of written information is growing at a rate never before seen, the ability to read and absorb written information is of utmost importance for anything but a superficial understanding of life's complexities. That is an example of a sentence which is not very easy to read. It can be said to have a relatively high degree of text complexity. Nevertheless, the sentence is also true. It is important to be able to read and understand written materials. While not everyone might have a job where they have to read a lot, access to written material is necessary in order to participate in modern society. Most information, from news reporting, to medical information, to governmental information, come primarily in a written form.

    But what makes the sentence at the start of this abstract so complex? We can probably all agree that the length is part of it. But then what? Researches in the field of readability and text complexity analysis have been studying this question for almost 100 years. That research has over time come to include many computational and data driven methods within the field of computational linguistics.

    This thesis cover some of my contributions to this field of research, though with a main focus on Swedish rather than English text. It aims to explore two primary questions (1) Which linguistic features are most important when assessing text complexity in Swedish? and (2) How can we deal with the problem of data sparsity with regards to complexity annotated texts in Swedish?

    The first issue is tackled by exploring the task of identifying easy-to-read ("lättläst") text using classification with Support Vector Machines. A large set of linguistic features is evaluated with regards to predictive performance and is shown to separate easy-to-read texts from regular texts with a very high accuracy. Meanwhile, using a genetic algorithm for variable selection, we find that almost the same accuracy can be reached with only 8 features. This implies that this classification problem is not very hard and that results might not generalize to comparing less easy-to-read texts.

    This, in turn, brings us to the second question. Except for easy-to-read labeled texts, the data with text complexity annotations is very sparse. It consist of multiple small corpora using different scales to label documents. To deal with this problem, we propose a novel statistical model. The model belongs to the larger family of Probit models and is implemented in a Bayesian fashion and estimated using a Gibbs sampler based on extending a well established Gibbs sampler for the Ordered Probit model. This model is evaluated using both simulated and real world readability data with very promising results.

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  • 180.
    Falkenjack, Johan
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology. Santa Anna IT Research Institute AB, Linköping, Sweden.
    Heimann Mühlenbock, Katarina
    Språkbanken, University of Gothenburg, Gothenburg.
    Using the probability of readability to order Swedish texts2012In: Proceedings of the Fourth Swedish Language Technology Conference, 2012, p. 27-28Conference paper (Refereed)
    Abstract [en]

    In this study we present a new approach to rank readability in Swedish texts based on lexical, morpho-syntactic and syntactic analysis of text as well as machine learning. The basic premise and theory is presented as well as a small experiment testing the feasibility, but not actual performance, of the approach. The experiment shows that it is possible to implement a system based on the approach, however, the actual performance of such a system has not been evaluated as the necessary resources for such an evaluation does not yet exist for Swedish. The experiment also shows that a classifier based on the aforementioned linguistic analysis, on our limited test set, outperforms classifiers based on established metrics used to assess readability such as LIX, OVIX and Nominal Ratio.

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    falkenjackmuhlenbocksltc2012
  • 181.
    Falkenjack, Johan
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology. SICS East Swedish ICT AB .
    Heimann Mühlenbock, Katarina
    Göteborgs Universitet.
    Jönsson, Arne
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology. SICS East Swedish ICT AB .
    Features indicating readability in Swedish text2013In: Proceedings of the 19th Nordic Conference of Computational Linguistics (NODALIDA 2013) / [ed] Stephan Oepen, Kristin Hagen, Janne Bondi Johannesse, Linköping, 2013, p. 27-40Conference paper (Refereed)
    Abstract [en]

    Studies have shown that modern methods of readability assessment, using automated linguistic analysis and machine learning (ML), is a viable road forward for readability classification and ranking. In this paper we present a study of different levels of analysis and a large number of features and how they affect an ML-system’s accuracy when it comes to readability assessment. We test a large number of features proposed for different languages (mainly English) and evaluate their usefulness for readability assessment for Swedish as well as comparing their performance to that of established metrics. We find that the best performing features are language models based on part-of-speech and dependency type.

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    falkenjackmuhlenbockjonssonnodalida2013
  • 182.
    Falkenjack, Johan
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Rennes, Evelina
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Fahlborg, Daniel
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Johansson, Vida
    Linköping University, Department of Computer and Information Science. Linköping University, Faculty of Arts and Sciences.
    Jönsson, Arne
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Services for text simplification and analysis2017In: Proceedings of the 21st Nordic Conference on Computational Linguistics, NoDaLiDa, Linköping University Electronic Press, 2017, Vol. 131, p. 309-313, article id 044Conference paper (Refereed)
    Abstract [en]

    We present a language technology service for web editors’ work on making texts easier to understand, including tools for text complexity analysis, text simplification and text summarization. We also present a text analysis service focusing on measures of text complexity.

  • 183.
    Falkenjack, Johan
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering. SICS East Swedish ICT AB, Linköping, Sweden.
    Santini, Marina
    Linköping University, Department of Computer and Information Science, Human-Centered systems. SICS East Swedish ICT AB, Linköping, Sweden.
    Jönsson, Arne
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences. SICS East Swedish ICT AB, Linköping, Sweden.
    An Exploratory Study on Genre Classification using Readability Features2016Conference paper (Other academic)
    Abstract [en]

    We present a preliminary study that explores whether text features used for readability assessment are reliable genre-revealingfeatures. We empirically explore the difference between genre and domain. We carry out two sets of experiments with bothsupervised and unsupervised methods. Findings on the Swedish national corpus (the SUC) show that readability cues are goodindicators of genre variation.

  • 184.
    Fallgren, Per
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Segeblad, Jesper
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Kuhlmann, Marco
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Towards a Standard Dataset of Swedish Word Vectors2016In: Proceedings of the Sixth Swedish Language Technology Conference (SLTC), 2016Conference paper (Refereed)
    Abstract [en]

    Word vectors, embeddings of words into a low-dimensional space, have been shown to be useful for a large number of natural language processing tasks. Our goal with this paper is to provide a useful dataset of such vectors for Swedish. To this end, we investigate three standard embedding methods: the continuous bag-of-words and the skip-gram model with negative sampling of Mikolov et al. (2013a), and the global vectors of Pennington et al. (2014). We compare these methods using QVEC-CCA (Tsvetkov et al., 2016), an intrinsic evaluation measure that quantifies the correlation of learned word vectors with external linguistic resources. For this propose we use SALDO, the Swedish Association Lexicon (Borin et al., 2013). Our experiments show that the continuous bag-of-words model produces vectors that are most highly correlated to SALDO, with the skip-gram model very close behind. Our learned vectors will be provided for download at the paper’s website.

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  • 185.
    Farzi, Saeed
    et al.
    University of Tehran.
    Faili, Heshaam
    University of Tehran.
    Khadivi, Shahram
    Amirkabir University of Technology.
    Maleki, Jalal
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    A Novel Reordering Model for Statistical Machine Translation2013In: Reserach in Computing Science: Advances in Natural Language Processing and Intelligent Learning Environments / [ed] Grigori Sidorov (Mexico), Gerhard Ritter ( USA ), Jean Serra (France ), Ulises Cortés ( Spain ), Mexico, 2013, p. 51-64Conference paper (Refereed)
    Abstract [en]

    Word reordering is one of the fundamental problems of machine translation, and an important factor of its quality and efficiency. In this paper, we introduce a novel reordering model based on an innovative structure, named, phrasal dependency tree including syntactical and statistical information in context of a log-linear model. The phrasal dependency tree is a new modern syntactic structure based on dependency relations between contiguous non-syntactic phrases. In comparison with well-known and popular reordering models such as the distortion, lexicalized and hierarchical models, the experimental study demonstrates the superiority of our model regarding to the different evaluation measures. We evaluated the proposed model on a PersianEnglish SMT system. On average our model retrieved a significant impact on precision with comparable recall value respect to the lexicalized and distortion models, and is found to be effective for medium and long-distance reordering.

  • 186.
    Fernandez-Luque, Luis
    et al.
    Salumedia Com, Spain; Qatar Comp Research Institute, Qatar.
    Vimarlund, Vivian
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Borycki, Elizabeth
    University of Victoria, Canada.
    Schulz, Stefan
    Graz University, Austria.
    Kuziemsky, Craig
    University of Ottawa, Canada.
    Marschollek, Michael
    Hannover Medical Sch, Germany; Technical University of Carolo Wilhelmina Braunschweig, Germany.
    Kulikowski, Casimir A.
    Rutgers State University, NJ USA.
    Social Media as Catalyzer for Connected Health: Hype or Hope? Perspectives from IMIA Working Groups2016In: NURSING INFORMATICS 2016: EHEALTH FOR ALL: EVERY LEVEL COLLABORATION - FROM PROJECT TO REALIZATION, IOS PRESS , 2016, Vol. 225, p. 602-604Conference paper (Refereed)
    Abstract [en]

    The Internet and social media are becoming ubiquitous technologies that are transforming the health sector. Social media has become an avenue for accessing, creating and sharing health information among patients and healthcare professionals. Furthermore, social media has become a key feature in many eHealth solutions, including wearable technologies, Big Data solutions, eLearning systems, Serious Games, Medical imaging, etc. These hyper-connected technologies are facilitating a paradigm shift towards more connected health. In this panel, representatives of different IMIA Working Groups will explore how both hope and hype contribute to social medias catalyzing role in creating connected health solutions.

  • 187.
    Field, Joris
    et al.
    Netherlands Aerospace Centre NLR, Amsterdam, the Netherlands.
    Rankin, Amy
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Mohrmann, Frederik
    Netherlands Aerospace Centre NLR, Amsterdam, the Netherlands.
    Boland, Edzard
    Netherlands Aerospace Centre NLR, Amsterdam, the Netherlands.
    Woltjer, Rogier
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Flexible Procedures to Deal with Complex Unexpected Events in the Cockpit2017In: Proceedings of the 7th REA symposium, Sophia Antipolis Cedex, France: Resilience Engineering Association , 2017Conference paper (Refereed)
    Abstract [en]

    Modern airliner operations consist of an environment with multiple detailed procedures to cover critical abnormal events and with systems that are automated and highly reliable. Complex and unexpected events are rare and may thus present a challenge to the crew to deal with, putting demands on the resilience of the crew. In the EU Man4Gen project a “flexible procedure” was developed as a strategy to assist flight crew in dealing with unexpected events where an existing procedure was not available. This procedure is intended to assist crews in adapting their response to the situation and be more flexible in their application of their procedures and training to increase the effectiveness of their response. This paper describes the procedure and its development within the project based on two sets of flight simulator experiments with operational flight crew. The resulting flexible procedure consists of steps to help crews manage time criticality, manage (un)certainty and finally to plan for contingencies and changes. This forms the basis of the discussion of how procedures can be a source of resilience in the cockpit, rather than forming a barrier to it.

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  • 188.
    Fjellström, Jonatan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Department of Management and Engineering, Machine Design.
    Gaze Interaction in Modern Trucks2014Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    In this master thesis project carried out on Scania’s interaction design department in Södertälje an evaluation of the technology gaze interaction has been done. The aim was to see if the technology was suitable for implementation in a truck environment and what potential it had. The work started by doing a context analysis to get a deeper knowledge of the research done on within the area related to the subject. Following the context analysis a comprehensive need finding process was done. In this process, data from interviews, observations, ride along with truck drivers, benchmarking and more was analysed. The analysis of this was used to identify the user needs. Based on the user needs the concept development phase was conducted. The whole development phase was done in different stages and started off by an idea generation process. The work flow was made in small iterations with the idea to continuously improve the concepts. All concepts were evaluated in a concept scoring chart to see which of the concepts that best fulfilled the concept specifications. The concepts that best could highlight the techniques strengths and weaknesses were chosen and these are Head Up Display Interaction and Gaze Support System.. These concepts focused on the interaction part of the technique rather than a specific function. Test of the two concepts were conducted in a simulator to get data and see how they performed compared to today´s Scania trucks. The result overall was good and the test subjects were impressed with the systems. However there was no significance in most of the cases of driving except for some conditions where the concepts prove to be better than the systems used today. Gaze interaction is a technology that is suitable for a truck driving environment given that a few slight improvements are made. Implementation of the concepts have a good potential of reducing road accidents caused by human errors. 

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    Gaze Interaction in Modern Trucks
  • 189.
    Flycht-Eriksson (Silvervarg), Annika
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Gulz, Agneta
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Haake, Magnus
    Division of Cognitive Science, Lund University, Lund, Sweden.
    Perseverance is crucial for learning. “OK! But can I take a break?"2018In: Artificial Intelligence in Education 19th International Conference, AIED 2018, London, UK, June 27–30, 2018, Proceedings, Part I / [ed] Carolyn Penstein Rosé, Roberto Martínez-Maldonado, H. Ulrich Hoppe, Rose Luckin, Manolis Mavrikis, Kaska Porayska-Pomsta, Bruce McLaren and Benedict du Boulay, Springer Berlin/Heidelberg, 2018, Vol. 10947, p. 532-544Conference paper (Refereed)
    Abstract [en]

    In a study with 108 10- to 12-year-olds who used a digital educational game targeting history, we addressed the phenomenon of perseverance, that is, the tendency to stick with a task even when it is challenging. The educational game was designed to make all students encounter tasks they did not succeed to solve, at which point they were offered a set of choices corresponding to perseverance and non-perseverance. Methods used were behavioral log data, post-questionnaires, and an in-game questionnaire conducted by a game character, who asked the students about the reason for their choice. Overall, we found no differences between high and low-perseverance students as to their experiences of effort, difficulty, and learning, and neither in their self-reported motives for persevering – when doing so. With respect to performance, however, high-persevering students solved significantly more tasks at higher difficulty levels. Comparing high-perseverance students who tended to take a break directly after a failed test – before they continued with the same task – with those who did not take a break, we found no significant differences, indicating that taking a break is not detrimental to learning and perseverance.

  • 190.
    Foglieni, Francesca
    et al.
    Politecnico di Milano, Italy.
    Holmlid, Stefan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Determining Service Value: Exploring the Link Between Value Creation and Service Evaluation2017In: Service Science, ISSN 2164-3962, E-ISSN 2164-3970, Vol. 9, no 1, p. 74-90Article in journal (Refereed)
    Abstract [en]

    Starting from the evolution of the service-dominant logic and critiques emerging from this, the purpose of this paper is to explore the link between value creation and service evaluation in order to understand what can be evaluated in a service, when and from which perspective, to ascertain its value.

    Even though in theory of service logic there is a quite clear understanding of service value creation dynamics, a reflection is missing on how to measure that value. The authors thus take on the concept of service evaluation as a further development of service logic, introducing a possible way to approach it.

    Bridging service logic studies and evaluation studies in the field of social sciences, this paper identifies temporal aspects of service evaluation, and possible evaluation objects and objectives that are meaningful for the service provider in value-facilitation activities and for the service user in value-creation activities. A framework is developed and some considerations are done upon shifting the reflection on value creation from theory to an evaluation practice.

  • 191. Order onlineBuy this publication >>
    Forsblad (Kristiansson), Mattias
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Distributed cognition in home environments: The prospective memory and cognitive practices of older adults2016Doctoral thesis, monograph (Other academic)
    Abstract [en]

    In this thesis I explore how older people make use of, and interact with, their physical environment in home and near-by settings to manage cognitive situations, specifically prospective memory situations. Older adults have in past research been shown to perform better on prospective memory in real-life settings than what findings in laboratory-like settings predict. An explanation for this paradox is that older adults has a more developed skill of using the environment for prospective memory than younger adults. However, research investigating this explanation has primarily been based on self-reports.

    I contribute to the understanding of this skill by doing two related things. First I introduce distributed cognition, a theoretical perspective that primarily has been used within professional and socio-technical environments, to the research field of prospective memory in everyday life. Second I present a cognitive ethnography conducted during two years across eight home, and near-by, environments and old-age retired persons, for which I have used theoretical concepts from distributed cognition to analyze observations.

    The analysis shows rich variations in how participants use common cultural cognitive tools, invent their own cognitive tools, deliberately and incidentally shape more or less functional spaces, make use of other physical features, orient themselves toward and make sense of cognitive resources. I complement both prospective memory and distributed cognition research by describing both the intelligent shaping and use of space. Furthermore, by taking a distributed cognitive perspective I show that prospective memory processes in home environments involve properties, and the management, of a multipurpose environment.

    Altogether this supports the understanding of distributed cognition as a perspective on all cognition. Distributed cognition is not a reflection of particular work practices, instead it is a formulation of the general features of human cognition. Prospective memory in everyday life can be understood as an ability persons have. However, in this thesis I show that prospective memory can also be understood as a process that takes place between persons, arrangements of space, and tools.

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    Distributed cognition in home environments: The prospective memory and cognitive practices of older adults
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  • 192.
    Forsyth, Katherine
    et al.
    Mayo Clinic, Robert D. and Patricia E. Kerns Center for the Science of Health Care Delivery, Rochester, MN, USA / Mayo Clinic, Department of Health Sciences Research, Rochester, MN, USA.
    Lowndes, Bethany
    Mayo Clinic, Robert D. and Patricia E. Kerns Center for the Science of Health Care Delivery, Rochester, MN, USA / Mayo Clinic, Department of Health Sciences Research, Rochester, MN, USA.
    Prytz, Erik
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Jonson, Carl-Oscar
    Region Östergötland, Center for Disaster Medicine and Traumatology. Linköping University, Faculty of Medicine and Health Sciences.
    Matthew, Sztajnkrycer
    Mayo Clinic, Department of Surgery, Rochester, MN, USA.
    Heller, Stephanie
    Mayo Clinic, Department of Emergency Medicine, Rochester, MN, USA.
    Hallbeck, Susan
    Mayo Clinic, Robert D. and Patricia E. Kerns Center for the Science of Health Care Delivery, Rochester, MN, USA / Mayo Clinic, Department of Health Sciences Research, Rochester, MN, USA.
    Blocker, Renaldo
    Mayo Clinic, Robert D. and Patricia E. Kerns Center for the Science of Health Care Delivery, Rochester, MN, USA / Mayo Clinic, Department of Health Sciences Research, Rochester, MN, USA.
    Improving Instructions to Stop the Bleed2017In: Proceedings of the Human Factors and Ergonomics Society 2017 Annual Meting, Santa Monica: Human Factors and Ergonomics Society, HFES , 2017, p. 588-592Conference paper (Refereed)
    Abstract [en]

    The Stop The Bleed initiative was developed by the Department of Homeland Security to educate lay providers in bleeding reduction strategies. The current study evaluated: (1)three tourniquet instructions using a simulated tourniquet task and (2)participant confidence levels in tourniquet use and lay provider training. Thirty participants with limited clinical experience applied a tourniquet to a simulated limb using one of three instruction sets. Twelve of these participants (40%) participated in a tourniquet training session and focus group to discuss each instruction set. Participants preferred the most simple and pictoral instruction set, and identified opportunities for improvement in each set. Participant confidence in tourniquet use increased significantly following the task and the focus group. After the focus group, participant confidence in instructing lay providers on proper tourniquet use significantly increased. Adding key steps, contextual pictures, and indicators of success to instructions could support lay providers stop the bleed in life-threatening situations

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    Improving Instructions to Stop the Bleed
  • 193.
    Fransson, Simon
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    MoSync för multi-plattformsutveckling till smartphones2014Independent thesis Basic level (university diploma), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    This is a thesis that is done on behalf of Meal Planning Concepts AB. The goal was to developa native multi-platform application for smartphones and tablets that would work on Android and iOS, and share database with their current web system. The functionality would be based on that found on their website. The application was developed in MoSync which is a framework that is capable of multiplatform development. The purpose with the thesis was also to evaluate MoSync during the project and present other similar tools and how they behave compared to MoSync. The report showcases the work and problems encountered during the development of the application as well as the end result. The pilot study showed that there were many othertools that focused on support for multiple platforms. Frameworks raised were jQuery Mobile, PhoneGap and Marmalade where the latter was the tool that was the most similar to MoSync. MoSync proved to be a framework in which all the company's requirements for functionality could be met except for a design simplification. Some drawbacks were that it was slightly buggy and that the community was small.

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  • 194.
    Franzén, Ellen
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Gonera, Mikael
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Live Language Coach-App: Svenska som andraspråk2016Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [sv]

    Denna studie syftar till att genom designforskning undersöka hur det pedagogiska greppet Learning in the wild kan implementeras i en applikation, Live Language Coach­app, för att stödja och uppmuntra inlärning av svenska som andraspråk. Den primära målgruppen för applikationen är nyanlända till Sverige. I denna studie har författarna utforskat och dokumenterat olika konceptuella angreppssätt för en implementation av Learning in the wild i Live Language Coach­app och ger i studien förslag på en exprimentell lösning som kan arbetas vidare på. Metoder som använts för datainsamling är: intervjuer med målgruppen för applikationen. Skapandet av personas utifrån intervjuerna, som tillsammans med med intressenterna har använts för att skapa kravgenereingar som applikationen ska svara emot. Olika designförslag och prototyper har skapats genom iterativa processer som sedan utvärderats, testats och ställts emot gjorda kravgenereringar. Resultatet visar på att det finns ett behov hos målgruppen att få kontakt med svensktalande och att Live Language Coach­app måste facilitera kontakten mellan 1 svensktalande och målgruppen på ett enkelt och snabbt sätt för motivera dem till att ta mera initiativ till interaktion i vardagen.

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  • 195.
    Franzén, Ida
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Limitations with Using Role Play for Experiential Learning2019Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Among researchers within the design area, role play is often spoken about in a positive manner. This study aims to discover the limitations with role play as a tool for experiential learning. This is done by evaluating a prototype of an early-stage concept of a role play-tool. The tool is aimed for Swedish SMEs to raise awareness and create curiosity of guanxi, which is a vital part of Chinese business culture. The tool is compared to another experiential-based tool, Experience Map, with the same purpose but based on real scenarios rather than simulated scenarios.

    Prototype testing with intended users identified the difficulty of giving instructions on cultural behaviour as one limitation. This limitation is especially difficult in settings where the participants have no previous knowledge within the area, which is the case for this study. Another limitation is the challenge of giving enough instructions for the players to act on, without interrupting the exploration aspect of the tool. Besides, the target group seem to prefer more hands-on tools that are more relevant for their specific business and less time-consuming. The main difference between the tools is that the experience map which is based on real scenarios, creates a greater interest among participants and a higher level of the participants’ willingness to use it.

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    Limitations with Using Role Play for Experiential Learning
  • 196.
    Fredstam, Marcus
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Johansson, Gabriel
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Comparing database management systems with SQLAlchemy: A quantitative study on database management systems2019Independent thesis Basic level (university diploma), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    Knowing which database management system to use for a project is difficult to know in advance. Luckily, there are tools that can help the developer apply the same database design on multiple different database management systems without having to change the code. In this thesis, we investigate the strengths of SQLAlchemy, which is an SQL toolkit for Python.

    We compared SQLite, PostgreSQL and MySQL using SQLAlchemy as well as compared a pure MySQL implementation against the results from SQLAlchemy.

    We conclude that, for our database design, PostgreSQL was the best database management system and that for the average SQL-user, SQLAlchemy is an excellent substitution to writing regular SQL.

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  • 197.
    Friberg, Joy
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Evaluation of cross-platform development for mobile devices2014Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Developing an application for several platforms can be time consuming because each platform has its own operating system and different developing language. Cross-platform development makes it possible to develop an ap-plication that will work on several platforms. This report will evaluate this kind of development by doing a case study for the company CGI. The case study will evaluate which cross-platform methodology is the preferred choice for this specific vacation booking application I developed for CGI.

    The different methodologies I studied were web, hybrid, interpreted and cross-compiled. The preferred methodology for this vacation booking application I developed was in this case the hybrid alternative. When selecting this methodology I also chose two different tools and those two were Icenium and jQuery Mobile. The purpose of this report was to find out if cross-platform development can be a substitute to native programming and by evaluating and developing cross-platform I found out that it can be a substitute if the application is not to complex. In this specific case I also believe that hybrid development is a good substitute to native development for this kind of applications.

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    Evaluation of cross-platform development for mobile devices - Joy Friberg
  • 198.
    Frisk, Oskar
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Organisationsintern information: Förslag till ett digitalt stöd för kommunikation och informationsutbyte inom företag och organisationer2015Independent thesis Basic level (degree of Bachelor), 12 credits / 18 HE creditsStudent thesis
    Abstract [sv]

    Kommunikation och informationsspridning är en viktig aktivitet inom företag och organisationer. Mycket av detta sköts i dagsläget digitalt i varierande form så som mail, chatt och intranät med sociala flöden. I vissa fall kan olika metoder för kommunikation bli överbelastade medan andra blir åsidosatta, alla metoder har några positiva aspekter som kan används för att eventuellt underlätta den digitala kommunikationen inom företag och organisationer. Denna studie undersöker just detta, hur sköts intern kommunikation inom företag och organisationer idag och hur kan de positiva aspekterna av det integreras i en lösning. Genom intervjuer med anställda inom olika företag och organisationer specificerades hur kommunikation kan skötas idag, vad det finns för krav på kommunikationsmetoderna samt deras positiva respektive negativa egenskaper. Med intervjuerna som grund genomfördes en skissprocess där olika förslag vägdes emot varandra. Det förslag som presenteras är det som uppfyllde största antal krav och integrerade flest positiva aspekter.

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    Kandidatuppsats_Kognitionsvetenskap_2015_Oskar_Frisk
  • 199.
    Fröberg, Anders
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Models and Tools for Distributed User Interface Development2012Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    The way we interact with computers and computer systems are constantly changing as technology evolves. A current trend is that users interact with multiple andinterconnected devices on a daily basis. They are beginning to request ways and means of dividing and spreading their applications acrossthese devices.Distributed user interfaces (DUIs) have been proposed as a means ofdistributing programs over multiple interconnected devices through theuser interface (UI). DUIs represent a fundamental change foruser-interface design, enabling new ways of developing distributedsystems that, for instance, support runtime reorganization ofUIs. However developing DUIs presents a far more complex task compared totraditional UI development, due to the inherent complexity thatarises from combining UI development with distributed systems. Thetraditional approach in software engineering and computer science toovercoming complexity is to build tools and frameworks, to allowfor good code reuse and higher level of abstraction for applicationprogramers.Conventional GUI programming tools and frameworks are not developedto support DUIs specifically. In this thesis we explore key issues increating new programming tools and frameworks (APIs) for DUI-based UIdevelopment. We also present and discuss the DUI framework Marve,which adds DUI support to Java Swing.A unique feature of Marve is that it is designedfor industrial-scale development, extending a standard UIframework. The framework has beentested and evaluated in a project where an operator control stationsystem was developed.

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  • 200.
    Gavelin, Simon
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Beck-Norén, Gustav
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Styling av vektorkartor i mobila enheter2013Independent thesis Basic level (university diploma), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    Mobile systems which are used professionally are often developed for professions whom work outside of the office.

    Map presentation is an important component which is used as a foundation to show application specific data or to handle input of information out in the field.Map information or geodata is often handled in two separated formats. First raster information which is picture data and second vector information. Vector data consists of areas, lines and points which have mathematical definitions. Vector data have the advantage by being resolution independent, very accurate and more space efficient than raster data. Unlike raster data vector data does not store information about how it should be presented visually. The presentation can be implemented using source code but it is much more productive to use a style language. In the same way CSS works with HTML. There are a variety of style languages which are applicable on vector maps.

    Within this thesis we dives deeper into the existing methods of styling vector maps but also look at alternative solutions. A prototype application is to be constructed to implement the chosen solutions.Finally are we going to apply the tested solutions on the existing GIS-application created by IT-bolaget Per&Per.

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