liu.seSearch for publications in DiVA
Change search
Refine search result
1234567 151 - 200 of 9089
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Rows per page
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sort
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
Select
The maximal number of hits you can export is 250. When you want to export more records please use the Create feeds function.
  • 151.
    Ahrenberg, Lars
    Linköping University, The Institute of Technology. Linköping University, Department of Computer and Information Science, NLPLAB - Natural Language Processing Laboratory.
    Searching Parallel Treebanks for Translation Relations2008In: Resourceful Language Technology: Festschrift in Honor of Anna Sågvall Hein, Uppsala: Acta Universitatis Upsaliensis , 2008, 1, p. 11-20Chapter in book (Other academic)
    Abstract [en]

    As the first holder of the first chair in computational linguistics in Sweden, Anna Sågvall Hein has played a central role in the development of computational linguistics and language technology both in Sweden and on the international scene. Besides her valuable contributions to research, which include work on machine translation, syntactic parsing, grammar checking, word prediction, and corpus linguistics, she has been instrumental in establishing a national graduate school in language technology as well as an undergraduate program in language technology at Uppsala University. It is with great pleasure that we present her with this Festschrift to honor her lasting contributions to the field and to commemorate her retirement from the chair in computational linguistics at Uppsala University. The contributions to the Festschrift come from Anna’s friends and colleagues around the world and deal with many of the topics that are dear to her heart. A common theme in many of the articles, as well as in Anna’s own scientific work, is the design, development and use of adequate language technology resources, epitomized in the title Resourceful Language Technology.

  • 152.
    Ahrenberg, Lars
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Swedish prepositions are not pure function words2017In: Proceedings of the NoDaLiDa 2017 Workshop on Universal Dependencies, 22 May, Gothenburg, Sweden / [ed] Marie-Catherine de Marneffe, Joakim Nivre, and Sebastian Schuster, Linköping: Linköping University Electronic Press, 2017, Vol. 135, p. 11-18Conference paper (Refereed)
    Abstract [en]

    As for any categorial scheme used for annotation, UD abound with borderline cases. The main instruments to resolve them are the UD design principles and, of course, the linguistic facts of the matter. UD makes a fundamental distinction between content words and function words, and a, perhaps less fundamental, distinction between pure function words and the rest. It has been suggested that adpositions are to be included among the pure function words. In this paper I discuss the case of prepositions in Swedish and related languages in the light of these distinctions. It relates to a more general problem: How should we resolve cases where the linguistic intuitions and UD design principles are in conflict?

    Download full text (pdf)
    Swedish prepositions are not pure function words
  • 153.
    Ahrenberg, Lars
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Towards a research infrastructure for translation studies.2014Conference paper (Other academic)
    Abstract [en]

    In principle the CLARIN research infrastructure provides a good environment to support research on translation. In reality, the progress within CLARIN in this area seems to be fairly slow. In this paper I will give examples of the resources currently available, and suggest what is needed to achieve a relevant research infrastructure for translation studies. Also, I argue that translation studies has more to gain from language technology, and statistical machine translation in particular, than what is generally assumed, and give some examples.

    Download full text (pdf)
    fulltext
  • 154.
    Ahrenberg, Lars
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Towards an adequate account of parataxis in Universal Dependencies2019In: Proceedings of the Third Workshop on Universal Dependencies (UDW, SyntaxFest 2019) / [ed] Alexandre Rademaker, Francis Tyers, Association for Computational Linguistics, 2019Conference paper (Refereed)
    Abstract [en]

    The parataxis relation as defined for Universal Dependencies 2.0 is general and, for this reason,sometimes hard to distinguish from competing analyses, such as coordination, conj, or apposi-tion, appos. The specific subtypes that are listed for parataxis are also quite different in character.In this study we first show that the actual practice by UD-annotators is varied, using the parallelUD (PUD-) treebanks as data. We then review the current definitions and guidelines and suggestimprovements.

  • 155.
    Ahrenberg, Lars
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Translation Competence in Machines: A Study of Adjectives in English-Swedish Translation2021In: Proceedings for the First Workshop on Modelling Translation: Translatology in the Digital Age / [ed] Yuri Bizzoni , Elke Teich, Cristina España-Bonet and Josef van Genabith, 2021, p. 57-65Conference paper (Refereed)
    Abstract [en]

    Recent improvements in neural machinetranslation calls for increased efforts onqualitative evaluations so as to get a betterunderstanding of differences in translationcompetence between human and machine.This paper reports the results of a studyof 1170 adjectives in translation from En-glish to Swedish, using the Parallel Uni-versal Dependencies Treebanks for theselanguages. The comparison covers two di-mensions: the types of solutions employedand the incidence of debatable or incorrecttranslations. It is found that the machinetranslation uses all of the solution typesthat the human translation does, but in dif-ferent proportions and less competently

  • 156.
    Ahrenberg, Lars
    et al.
    Linköping University, Department of Computer and Information Science, NLPLAB - Natural Language Processing Laboratory. Linköping University, The Institute of Technology.
    Andersson, Mikael
    Linköping University.
    Merkel, Magnus
    Linköping University, Department of Computer and Information Science, NLPLAB - Natural Language Processing Laboratory. Linköping University, The Institute of Technology.
    A Simple Hybrid Aligner for Generating Lexical Correspondences in Parallel Texts1998In: Proceedings of the 36th Annual Meeting of the Association for Computational Linguistics and 17th International Conference on Computational Linguistics (COLING-ACL'98) Montreal, August 10-14, 1998, / [ed] Pierre Isabelle, The Association for Computational Linguistics , 1998, p. 29-35Conference paper (Refereed)
  • 157.
    Ahrenberg, Lars
    et al.
    Linköping University, Department of Computer and Information Science, NLPLAB - Natural Language Processing Laboratory. Linköping University, The Institute of Technology.
    Andersson, Mikael
    Merkel, Magnus
    Linköping University, Department of Computer and Information Science, NLPLAB - Natural Language Processing Laboratory. Linköping University, The Institute of Technology.
    A System for Incremental and Interactive Word Linking2002In: In Third International Conference on Language Resources and Evaluation (LREC 2002), Las Palmas, 29-31 May 2002., European Language Resources Association (ELRA) , 2002, p. 485-490Conference paper (Refereed)
    Abstract [en]

    Aligned parallel corpora constitute a critical information resource for a great number of linguistic and technological endeavors. Automatic sentence alignment has reached a level whereby large parallel documents can be fully aligned with the aid of interactive post-editing tools. Word alignment systems have not yet reached the same level of performance, but are good enough to support full word alignment if embedded in an interactive system. In this paper we describe a system for fast and accurate word alignment currently under development at our department, where the user can review and improve the output from an automatic system in an incremental fashion.

  • 158.
    Ahrenberg, Lars
    et al.
    Linköping University, Department of Computer and Information Science, NLPLAB - Natural Language Processing Laboratory. Linköping University, The Institute of Technology.
    Dahlbäck, Nils
    Linköping University, Department of Computer and Information Science, CSELAB - Cognitive Systems Engineering Laboratory. Linköping University, The Institute of Technology.
    Thureé, Åke
    Linköping University.
    Jönsson, Arne
    Linköping University, Department of Computer and Information Science, NLPLAB - Natural Language Processing Laboratory. Linköping University, The Institute of Technology.
    Customizing Interaction for Natural Language Interfaces1996Report (Other academic)
    Abstract [en]

    Habitability and robustness have been noted as important qualities of natural-language interfaces. In this paper we discuss how these requirements can be met, in particular as regards the system's ability to support a coherent and smooth dialogue. The discussion is based on current work on customizing a dialogue system for three different applications.   We adopt a sublanguage approach to the problem and propose a method for customization combining bottom-up use of empirical data with a global pragmatic analysis of a given application. Finally, we suggest three design principles that have emerged from our work called the sublanguage principle, the asymmetry principle and the quantity principle.

    Download full text (pdf)
    http://www.ep.liu.se/ea/cis/1996/001/cis96001.pdf
  • 159.
    Ahrenberg, Lars
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Danielsson, Henrik
    Linköping University, The Swedish Institute for Disability Research. Linköping University, Department of Behavioural Sciences and Learning, Disability Research. Linköping University, Faculty of Arts and Sciences.
    Bengtsson, Staffan
    The Swedish Institute for Disability Research, Jönköping University, Sweden.
    Arvå, Hampus
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Holme, Lotta
    Linköping University, Department of Behavioural Sciences and Learning, Education, Teaching and Learning. Linköping University, Faculty of Educational Sciences.
    Jönsson, Arne
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Studying Disability Related Terms with Swe-Clarin Resources2019Conference paper (Refereed)
    Abstract [en]

    In Swedish, as in other languages, the words used to refer to disabilities and people with disabilities are manifold. Recommendations as to which terms to use have been changed several times over the last hundred years. In this exploratory paper we have used textual resources provided by Swe-Clarin to study such changes quantitatively. We demonstrate that old and new recommendations co-exist for long periods of time, and that usage sometimes converges.

    Download full text (pdf)
    Introduction to proceedings
    Download full text (pdf)
    Article in full text
  • 160.
    Ahrenberg, Lars
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Holmer, Daniel
    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.
    Jönsson, Arne
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Analysing Changes in Official Use of the Design Concept Using SweCLARIN Resources2022In: Proceedings of the CLARIN Annual meeting, 2022Conference paper (Refereed)
    Abstract [en]

    We show how the tools and language resources developed within the SweClarin infrastructure can be used to investigate changes in the use and understanding of the Swedish related words arkitektur, design, form, and formgivning. Specifically, we compare their use in two governmental public reports on design, one from 1999 and the other from 2015. We test the hypothesis that their meaning has developed in a way that blurs distinctions that may be important to stakeholders in the respective fields.

  • 161.
    Ahrenberg, Lars
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Holmer, Daniel
    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.
    Jönsson, Arne
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Analysing changes in official use of the design concept using SweCLARIN resources2023In: Selected papers from the CLARIN Annual Conference 2022 / [ed] Tomaž Erjavec and Maria Eskevich, Linköping: Linköping University Electronic Press, 2023Conference paper (Refereed)
    Abstract [en]

    We investigate changes in the use of four Swedish words from the fields of design and archi- tecture. It has been suggested that their meanings have been blurred, especially in governmental reports and policy documents, so that distinctions between them that are important to stakeholders in the respective fields are lost. Specifically, we compare usage in two governmental public reports on design, one from 1999 and the other from 2015, and additionally in opinion responses to the 2015 report. Our approach is to contextualise occurrences of the words in different representations of the texts using word embeddings, topic modelling and sentiment analysis. Tools and language resources developed within the SweClarin infrastructure have been crucial for the implementation of the study.

  • 162.
    Ahrenberg, Lars
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Megyesi, BeátaUppsala universitet, Institutionen för lingvistik och filologi.
    Proceedings of the Workshop on NLP and Pseudonymisation2019Conference proceedings (editor) (Refereed)
    Download full text (pdf)
    FULLTEXT01
  • 163.
    Ahrenberg, Lars
    et al.
    Linköping University, Department of Computer and Information Science, NLPLAB - Natural Language Processing Laboratory. Linköping University, The Institute of Technology.
    Merkel, Magnus
    Linköping University, Department of Computer and Information Science, NLPLAB - Natural Language Processing Laboratory. Linköping University, The Institute of Technology.
    A knowledge-lite approach to word alignment2000In: Parallel Text Processing: Alignment and Use of Translation Corpora / [ed] Jean Veronis, Dordrecht, The Netherlands: Kluwer Academic Publishers, 2000, p. 97-116Chapter in book (Other academic)
    Abstract [en]

    The most promising approach to word alignment is to combine statistical methods with non-statistical information sources. Some of the proposed non-statistical sources, including bilingual dictionaries, POS-taggers and lemmatizers, rely on considerable linguistic knowledge, while other knowledge-lite sources such as cognate heuristics and word order heuristics can be implemented relatively easy. While knowledge-heavy sources might be expected to give better performance, knowledge-lite systems are easier to port to new language pairs and text types, and they can give sufficiently good results for many purposes, e.g. if the output is to be used by a human user for the creation of a complete word-aligned bitext. In this paper we describe the current status of the Linköping Word Aligner (LWA), which combines the use of statistical measures of co-occurrence with four knowledge-lite modules for (i)) word categorization, (ii) morphological variation, (iii) word order, and (iv) phrase recognition. We demonstrate the portability of the system (from English-Swedish texts to French-English texts) and present results for these two language-pairs. Finally, we will report observations from an error analysis of system output, and identify the major strengths and weaknesses of the system.

  • 164.
    Ahrenberg, Lars
    et al.
    Linköping University, Department of Computer and Information Science, NLPLAB - Natural Language Processing Laboratory. Linköping University, The Institute of Technology.
    Merkel, Magnus
    Linköping University, Department of Computer and Information Science, NLPLAB - Natural Language Processing Laboratory. Linköping University, The Institute of Technology.
    Correspondence measures for MT evaluation.2000In: Proceedings of the Second International Conference on Linguistic Resources and Evaluation (LREC-2000, Paris, France: European Language Resources Association (ELRA) , 2000, p. 41-46Conference paper (Refereed)
  • 165.
    Ahrenberg, Lars
    et al.
    Linköping University, Department of Computer and Information Science. Linköping University, The Institute of Technology.
    Merkel, Magnus
    Linköping University, Department of Computer and Information Science, NLPLAB - Natural Language Processing Laboratory. Linköping University, The Institute of Technology.
    On translation corpora and translation support tools: A project report.1996In: Languages in Contrast. : Papers from a Symposium on Text-based Cross-linguistic Studies, Lund 4-5 March 1994 / [ed] K. Aijmer, B Altenberg & M. Johansson, Lund: Lund University Press , 1996, p. 185-200Conference paper (Refereed)
  • 166.
    Ahrenberg, Lars
    et al.
    Linköping University, Department of Computer and Information Science, NLPLAB - Natural Language Processing Laboratory. Linköping University, The Institute of Technology.
    Merkel, Magnus
    Linköping University, Department of Computer and Information Science, NLPLAB - Natural Language Processing Laboratory. Linköping University, The Institute of Technology.
    Språkliga effekter av översättningssystem.1998In: Svenskan i IT-samhället. / [ed] Olle Josephsson, Uppsala: Hallgren & Fallgren , 1998, p. 96-115Chapter in book (Other academic)
    Abstract [sv]

    Hur förändras det svenska språket av datorer och IT-teknik? Hur påverkas svenska ord, meningar och texter? Ett tiotal språkvetare diskuterar vad ordbehandlare, e-post, internet och s.k. "översättningsmaskiner" kan få för konsekvenser för svenskan. Analyser och resonemang kring en mängd exempel från både myndighetsbrev och chattare på nätet

  • 167.
    Ahrenberg, Lars
    et al.
    Linköping University, Department of Computer and Information Science, NLPLAB - Natural Language Processing Laboratory. Linköping University, The Institute of Technology.
    Merkel, Magnus
    Linköping University, Department of Computer and Information Science, NLPLAB - Natural Language Processing Laboratory. Linköping University, The Institute of Technology.
    Petterstedt, Michael
    Linköping University, Department of Computer and Information Science, NLPLAB - Natural Language Processing Laboratory. Linköping University, The Institute of Technology.
    Interactive Word Alignment for Language Engineering2003In: The 10th Conference of the European Chapter of the Association for Computational Linguistics, Conference Companion, Association for Computational Linguistics , 2003, p. 49-52Conference paper (Refereed)
  • 168.
    Ahrenberg, Lars
    et al.
    Linköping University, Department of Computer and Information Science. Linköping University, The Institute of Technology.
    Merkel, Magnus
    Linköping University, Department of Computer and Information Science. Linköping University, The Institute of Technology.
    Ridings, Daniel
    Department of Swedish Language, Goteborg University, Goteborg Sweden.
    Sågvall Hein, Anna
    Department of Linguistics, Uppsala University, Uppsala Sweden.
    Tiedemann, Jörg
    Department of Linguistics, Uppsala University, Uppsala Sweden.
    Automatic Processing of Parallel Corpora: A Swedish Perspective1999Report (Other academic)
    Abstract [en]

    As empirical methods have come to the fore in multilingual language technology and translation studies, the processing of parallel texts and parallel corpora have become a major research area in computational linguistics. In this article we review the state of the art in alignment and data extraction techniques for parallel texts, and give an overview of current work in Sweden in this area. In a final section, we summarize the results achieved so far and make some proposals for future research.

    Download full text (pdf)
    fulltext
  • 169.
    Ahrenberg, Lars
    et al.
    Linköping University, Department of Computer and Information Science, NLPLAB - Natural Language Processing Laboratory. Linköping University, The Institute of Technology.
    Merkel, Magnus
    Linköping University, Department of Computer and Information Science, NLPLAB - Natural Language Processing Laboratory. Linköping University, The Institute of Technology.
    Sågvall Hein, Anna
    Institutionen för lingvistik, Uppsala universitet..
    Tiedemann, Jörg
    Institutionen för lingvistik, Uppsala universitet.
    Evaluation of word alignment systems2000In: Proceedings of the Second International Conference on Linguistic Resources and Evaluation (LREC-2000), Paris, France: European Language Resources Association (ELRA) , 2000, p. 1255-1261Conference paper (Refereed)
  • 170.
    Ahrenberg, Lars
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Olsson, Leif-Jöran
    University of Gothenburg, Sweden.
    Frid, Johan
    Lund University, Sweden.
    A New Gold Standard for Swedish NERC2019In: Proceedings of the CLARIN Annual Conference 2019 / [ed] Kiril Simov, Maria Eskevich, CLARIN , 2019, p. 112-115Conference paper (Refereed)
    Abstract [en]

    Starting in 2018 Swe-Clarin members are working cross-instituionally on special themes. In thispaper we report ongoing work in a project aimed at the creation of a new gold standard forSwedish Named-Entity Recognition and Categorisation. In contrast to previous efforts the newresource will contain data from both social media and edited text. The resource will be madefreely available through Spr ̊akbankenText

  • 171.
    Ahrenberg, Lars
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Tarvi, Ljuba
    Helsingfors University, Finland.
    Natural Language Processing for the Translation Class2013In: Proceedings of the second workshop on NLP for computer-assisted language learning at NODALIDA 2013: NEALT Proceedings Series 17 / [ed] Elena Volodina, Lars Borin, Hrafn Loftsson, Linköping: Linköping University Electronic Press, 2013, p. 1-10Conference paper (Refereed)
    Abstract [en]

    We propose a system for use in translation teaching with automatic support for alignment and comparative assessment of different translations. A primary use of this system is for discussion in class and comparison of student translations from a given source text, but it may also be used to study and compare differences between published translations. We describe the intended functions of the system and give suggestions on its design and architecture. We also discuss the degree of automation that can be expected and report results from a small indicative study focused on word alignment performance.

  • 172.
    Ahrenberg, Lars
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Tarvi, Ljuba
    Helsinki University.
    Translation Class Instruction as Collaboration in the Act of Translation2014In: Proceedings of The 9th Workshop on Innovative Use of NLP for Building Educational Applications, Baltimore, USA, June 26th, 2014. / [ed] Joel Tetreault, Jill Burstein, Claudia Leacock, The Association for Computational Linguistics , 2014, p. 34-42Conference paper (Refereed)
    Abstract [en]

    The paper offers an effective way of teacher-student computer-based collabo-ration in translation class. We show how a quantitative-qualitative method of analysis supported by word alignment technology can be applied to student translations for use in the classroom. The combined use of natural-language pro-cessing and manual techniques enables students to ‘co-emerge’ during highly motivated collaborative sessions. Within the advocated approach, students are pro-active seekers for a better translation (grade) in a teacher-centered computer-based peer-assisted translation class.

  • 173.
    Ahrenberg, Lars
    et al.
    Linköping University, Department of Computer and Information Science.
    Tiedemann, JörgUppsala universitet.Volk, MartinUniversität Zürich.
    Proceedings of the Workshop on Annotation and Exploitation of Parallel Corpora, Tartu, December 2, 2010. NEALT Proceedings Series, Vol. 10.,2010Conference proceedings (editor) (Other academic)
  • 174.
    Ahrengart, Hugo
    et al.
    Linköping University, Department of Computer and Information Science.
    Borg, Therese
    Linköping University, Department of Computer and Information Science.
    Magnuson, David
    Linköping University, Department of Computer and Information Science.
    Nilsson, Victor
    Linköping University, Department of Computer and Information Science.
    Partain, Beatrice
    Linköping University, Department of Computer and Information Science.
    Voss-Lagerlund, Carl
    Linköping University, Department of Computer and Information Science.
    Wagner, Mattias
    Linköping University, Department of Computer and Information Science.
    Awesome Fragrance Company: Utveckling av en e-butik för parfymprover2016Independent thesis Basic level (degree of Bachelor), 12 credits / 18 HE creditsStudent thesis
    Abstract [en]

    This bachelor's thesis accounts for the results and takeaways from the process of developing the web application for Awesome Fragrance Company. The goal of this thesis is to provide an increased understanding of how a usable web application can be designed, by studying the development of an online store with the purpose of selling fragrance samples. The agile method Scrum has been the foundation of the development, and based on this, the focus has been to develop a continuously deliverable product, where functionality is added in increments. By starting with a rough prototype and then gradually adjusting the final vision for the product based on feedback, the group has developed an online store which, according to users, is usable and intuitive. Thus, the group has created a foundation for further research on usable web applications, which was the goal of the project.

    Download full text (pdf)
    fulltext
  • 175.
    Ahrenstedt, Simon
    et al.
    Linköping University, Department of Computer and Information Science.
    Huber, Daniel
    Linköping University, Department of Computer and Information Science.
    One Compiler to Rule Them All: Extending the Storm Programming Language Platform with a Java Frontend2023Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The thesis aims to develop a method for extending the language platform Storm with a Java frontend.The project was conducted using an Action Research methodology and highlights triumphs andchallenges. Despite the significant overhead related to note generation and problem statementformulation, this methodology proved beneficial in identifying problems and providing the framework tosolve them.

    The first research question (RQ.1) evaluates to what extent the language platform Storm is suitable forimplementing the object oriented language Java. Using Storm, only a BNF and a specification for three-address code instructions are needed. Despite encountering difficulties during the implementation, theplatform offers tools that allow comprehensive customization of the new language's intended behaviorand functionality.

    The second research question (RQ.2) explores a suitable method for implementing a new language inStorm. It is suggested to first implement a foundational structure comprising of statements, blocks,scope handling and variable declarations. From this foundation, new functionalities can be graduallyintroduced and tested by connecting them to the appropriate location in the structure. When allfunctionality is added and tested a refactoring step can take place to modify the BNF if needed.

    Download full text (pdf)
    one_compiler_to_rule_them_all
  • 176.
    Aidantausta, Oskar
    et al.
    Linköping University, Department of Computer and Information Science.
    Asman, Patrick
    Linköping University, Department of Computer and Information Science.
    Land Use/Land Cover Classification From Satellite Remote Sensing Images Over Urban Areas in Sweden: An Investigative Multiclass, Multimodal and Spectral Transformation, Deep Learning Semantic Image Segmentation Study2023Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Remote Sensing (RS) technology provides valuable information about Earth by enabling an overview of the planet from above, making it a much-needed resource for many applications. Given the abundance of RS data and continued urbanisation, there is a need for efficient approaches to leverage RS data and its unique characteristics for the assessment and management of urban areas. Consequently, employing Deep Learning (DL) for RS applications has attracted much attention over the past few years. In this thesis, novel datasets consisting of satellite RS images over urban areas in Sweden were compiled from Sentinel-2 multispectral, Sentinel-1 Synthetic Aperture Radar (SAR) and Urban Atlas 2018 Land Use/Land Cover (LULC) data. Then, DL was applied for multiband and multiclass semantic image segmentation of LULC. The contributions of complementary spectral, temporal and SAR data and spectral indices to LULC classification performance compared to using only Sentinel-2 data with red, green and blue spectral bands were investigated by implementing DL models based on the fully convolutional network-based architecture, U-Net, and performing data fusion. Promising results were achieved with 25 possible LULC classes. Furthermore, almost all DL models at an overall model level and all DL models at an individual class level for most LULC classes benefited from complementary satellite RS data with varying degrees of classification improvement. Additionally, practical knowledge and insights were gained from evaluating the results and are presented regarding satellite RS data characteristics and semantic segmentation of LULC in urban areas. The obtained results are helpful for practitioners and researchers applying or intending to apply DL for semantic segmentation of LULC in general and specifically in Swedish urban environments.

    Download full text (pdf)
    LULC_classification_satellite_remote_sensing
  • 177.
    Airaksinen, Tom
    et al.
    Linköping University, Department of Computer and Information Science.
    Byström, Erik E.
    Linköping University, Department of Computer and Information Science.
    User and Business Value: A Dual-Stakeholder Perspective on IT Systems2007Independent thesis Advanced level (degree of Magister), 20 points / 30 hpStudent thesis
    Abstract [en]

    When discussing the value of an information technology (IT) system, the most common approach is to take on the perspective of either the organization introducing the IT system or the end users. The purpose of this thesis has been to study the values of both stakeholder groups in order to define what system characteristics are the most desirable from a dual-stakeholder point of view.

    Through a series of contextual inquiries, interviews and questionnaires, the value perceptions of end users and IT managers at a large European rail operator were investigated. The results of the study point to a high degree of similarity in the value perceptions of end users and IT managers, although the former were generally focused on short-term value while the latter also were concerned about long-term, sustaining value.

    The findings are applicable to practitioners wishing to take a dual perspective on IT value as well as academics looking to find touch points between usability and business strategy. In the context of end users and IT managers, the most important system characteristics that maximize value for both stakeholder groups were found to be Availability, Recoverability, Efficiency, Reliability and Future Proofness.

    Download full text (pdf)
    FULLTEXT01
  • 178.
    Aitken, Colin
    et al.
    Univ Edinburgh, Scotland.
    Nordgaard, Anders
    Linköping University, Department of Computer and Information Science, The Division of Statistics and Machine Learning. Linköping University, Faculty of Arts and Sciences. Swedish Police Author, Natl Forens Ctr, SE-58194 Linkoping, Sweden.
    The Roles of Participants Differing Background Information in the Evaluation of Evidence2018In: Journal of Forensic Sciences, ISSN 0022-1198, E-ISSN 1556-4029, Vol. 63, no 2, p. 648-649Article in journal (Other academic)
    Abstract [en]

    n/a

  • 179.
    Akbar, Muhammad Usman
    et al.
    Linköping University, Department of Biomedical Engineering, Division of Biomedical Engineering. Linköping University, Faculty of Science & Engineering. Linköping University, Center for Medical Image Science and Visualization (CMIV).
    Larsson, Måns
    Eigenvision, Malmö, Sweden.
    Blystad, Ida
    Linköping University, Faculty of Medicine and Health Sciences. Linköping University, Center for Medical Image Science and Visualization (CMIV). Region Östergötland, Center for Diagnostics, Department of Radiology in Linköping. Linköping University, Department of Health, Medicine and Caring Sciences, Division of Diagnostics and Specialist Medicine.
    Eklund, Anders
    Linköping University, Department of Biomedical Engineering, Division of Biomedical Engineering. Linköping University, Faculty of Science & Engineering. Linköping University, Center for Medical Image Science and Visualization (CMIV). Linköping University, Department of Computer and Information Science, The Division of Statistics and Machine Learning.
    Brain tumor segmentation using synthetic MR images - A comparison of GANs and diffusion models2024In: Scientific Data, E-ISSN 2052-4463, Vol. 11, no 1, article id 259Article in journal (Refereed)
    Abstract [en]

    Large annotated datasets are required for training deep learning models, but in medical imaging data sharing is often complicated due to ethics, anonymization and data protection legislation. Generative AI models, such as generative adversarial networks (GANs) and diffusion models, can today produce very realistic synthetic images, and can potentially facilitate data sharing. However, in order to share synthetic medical images it must first be demonstrated that they can be used for training different networks with acceptable performance. Here, we therefore comprehensively evaluate four GANs (progressive GAN, StyleGAN 1–3) and a diffusion model for the task of brain tumor segmentation (using two segmentation networks, U-Net and a Swin transformer). Our results show that segmentation networks trained on synthetic images reach Dice scores that are 80%–90% of Dice scores when training with real images, but that memorization of the training images can be a problem for diffusion models if the original dataset is too small. Our conclusion is that sharing synthetic medical images is a viable option to sharing real images, but that further work is required. The trained generative models and the generated synthetic images are shared on AIDA data hub.

    Download full text (pdf)
    fulltext
  • 180.
    Akhlaq, Faisal
    et al.
    Linköping University, Department of Computer and Information Science.
    Loganathan, Sumathi
    Linköping University, Department of Computer and Information Science.
    Assembler Generator and Cycle-Accurate Simulator Generator for NoGAP2010Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    System-on-Chip is increasingly built using ASIP(Application  Specific Instruction set Processor) due to the flexibility and efficiency obtained from ASIPs. NoGAP (Novel Generator of Accelerator and Processor framework) is an innovative approach for  ASIP design, which provides the advantage of both ADL (Architecture  Description Language) and HDL (Hardware Description Language) to the  designer.

    For the processors designed using NoGAP, software tools need to be automatically generated, to aid the  designer in programming and verifying the processor. As part of the master thesis work, we have developed two generators namely Assembler generator and Cycle-Accurate Simulator generator for NoGAP using C++. The Assembler generator automatically generates an assembler, which is used to convert the assembly code written by a programmer into relocatable binary code. The Cycle-Accurate Simulator generator automatically generates a cycle-accurate simulator to model the behavior of the designed processor. Both these generators are static, and can be used to generate the tools for any processor created using NoGAP.

    In this report, we have detailed the concepts behind the generators,and the implementation details of the generators. We have listed the results obtained from running assembler and cycle-accurate simulator on a test processor created using NoGAP.

    Download full text (pdf)
    FULLTEXT01
  • 181.
    Akin, H. Levent
    et al.
    Bogazici University, Turkey.
    Ito, Nobuhiro
    Aichi Institute of Technology, Japan.
    Jacoff, Adam
    National Institute of Standards, USA.
    Kleiner, Alexander
    Linköping University, Department of Computer and Information Science, Artificial Intelligence and Integrated Computer Systems. Linköping University, The Institute of Technology.
    Pellenz, Johannes
    V&R Vision & Robotics GmbH, Germany.
    Visser, Arnoud
    University of Amsterdam, Holland.
    RoboCup Rescue Robot and Simulation Leagues2013In: The AI Magazine, ISSN 0738-4602, Vol. 34, no 1Article in journal (Refereed)
    Abstract [en]

    The RoboCup Rescue Robot and Simulation competitions have been held since 2000. The experience gained during these competitions has increased the maturity level of the field, which allowed deploying robots after real disasters (e.g. Fukushima Daiichi nuclear disaster). This article provides an overview of these competitions and highlights the state of the art and the lessons learned.

    Download full text (pdf)
    fulltext
  • 182.
    Aksomaitis, Algimantas
    et al.
    Kaunas Univ of Technology.
    Burauskaite-Harju, Agne
    Linköping University, Department of Computer and Information Science, Statistics. Linköping University, Faculty of Arts and Sciences.
    The Momenst of the Maximum of Normally Distributed Dependent Values2009In: Information Technology and Control, ISSN 1392-124X, E-ISSN 2335-884X, Vol. 38, no 4, p. 301-302Article in journal (Refereed)
    Abstract [en]

    In this paper the moments of the maximum of a finite number of random values are analyzed. The largest part of analysis is focused on extremes of dependent normal values. For the case of normal distribution, the moments of the maximum of dependent values are expressed through the moments of independent values.

  • 183.
    Aktan, Mathias
    et al.
    Linköping University, Department of Computer and Information Science. Linköping University, The Institute of Technology.
    Wirén-Hallqvist, Ulf
    Linköping University, Department of Computer and Information Science. Linköping University, The Institute of Technology.
    Developing a responsive mobile-first design guide for e-commerce with the users in focus2014Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Mobile e-commerce is an increasing trend. Still, many sales sites are not adapted to mobile interfaces. Important factors in the design of successful e-commerce applications are trust, high quality graphics, and easy navigation. However, a typical design approach is to strip down functionality and this can have a negative impact on the user experience.

    The goal of this thesis was to create a style guide that can be used to develop responsive e-commerce sites through a mobile first implementation strategy. A style guide was created by applying modern design theory and by investigating existing e-commerce solutions. Moreover, a prototype of an e- commerce solution was developed using the style guide. This prototype was evaluated by an expert group of usability professionals. The study indicates that the style guide is a useful and effective tool in the design and development of e-commerce systems. We conclude that a mobile first strategy needs to be combined with subsequent traditional desktop design. 

    Download full text (pdf)
    fulltext
  • 184.
    Alakula, Anton Risberg
    et al.
    Lund Univ, Sweden.
    Hedin, Gorel
    Lund Univ, Sweden.
    Fors, Niklas
    Lund Univ, Sweden.
    Pop, Adrian
    Linköping University, Department of Computer and Information Science, Software and Systems. Linköping University, Faculty of Science & Engineering.
    Property probes: Live exploration of program analysis results2024In: Journal of Systems and Software, ISSN 0164-1212, E-ISSN 1873-1228, Vol. 211, article id 111980Article in journal (Refereed)
    Abstract [en]

    We present property probes , a mechanism for helping a developer explore partial program analysis results in terms of the source program interactively while the program is edited. A node locator data structure is introduced that maps between source code spans and program representation nodes, and that helps identify probed nodes in a robust way, after modifications to the source code. We have developed a client-server based tool CODEPROBER supporting property probes, and argue that it is very helpful in debugging and understanding program analyses. We have evaluated our tool on several languages and analyses, including a full Java compiler and a tool for intraprocedural dataflow analysis. Our performance results show that the probe overhead is negligible even when analyzing large projects.

  • 185.
    Alam, Mehwish
    et al.
    Télécom Paris, Institut Polytechnique de Paris, France.
    Trojahn, CássiaIRIT, France.Hertling, SvenUniversity of Mannheim, Germany.Pesquita, CatiaLASIGE, Faculdade de Ciências, Universidade de Lisboa, Portugal.Aebeloe, ChristianAalborg University, Denmark.Aras, HidirFIZ-Karlsruhe, Germany.Azzam, AmrWU Vienna, Austria.Cano, JuanUniversidad Politécnica de Madrid, Spain.Domingue, JohnThe Open University, United Kingdom.Gottschalk, SimonL3S Research Center, Leibniz Universität Hannover, Germany.Hartig, OlafLinköping University, Department of Computer and Information Science, Database and information techniques. Linköping University, Faculty of Science & Engineering.Hose, KatjaAalborg University, Denmark.Kirrane, SabrinaVienna University of Economics and Business, Austria.Lisena, PasqualeEURECOM, France.Osborne, FrancescoThe Open University, Milton Keynes, United Kingdom.Rohde, Philipp D.TIB Leibniz Information Centre for Science and Technology and Leibniz University Hannover, Germany.Steels, LucBarcelona Supercomputing Center Spain.Taelman, RubenGhent University, Belgium.Third, AislingThe Open University, United Kingdom.Tiddi, IlariaVrije Universiteit Amsterdan, the Netherlands.Türker, RimaFIZ-Karlsruhe, Germany.
    Joint Proceedings of the ESWC 2023 Workshops and Tutorials co-located with 20th European Semantic Web Conference (ESWC)2023Conference proceedings (editor) (Other academic)
  • 186.
    Alansari, Hayder
    Linköping University, Department of Computer and Information Science.
    Clustered Data Management in Virtual Docker Networks Spanning Geo-Redundant Data Centers: A Performance Evaluation Study of Docker Networking2017Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Software containers in general and Docker in particular is becoming more popular both in software development and deployment. Software containers are intended to be a lightweight virtualization that provides the isolation of virtual machines with a performance that is close to native. Docker does not only provide virtual isolation but also virtual networking to connect the isolated containers in the desired way. Many alternatives exist when it comes to the virtual networking provided by Docker such as Host, Macvlan, Bridge, and Overlay networks. Each of these networking solutions has its own advantages and disadvantages.

    One application that can be developed and deployed in software containers is data grid system. The purpose of this thesis is to measure the impact of various Docker networks on the performance of Oracle Coherence data grid system. Therefore, the performance metrics are measured and compared between native deployment and Docker built-in networking solutions. A scaled-down model of a data grid system is used along with benchmarking tools to measure the performance metrics.

    The obtained results show that changing the Docker networking has an impact on performance. In fact, some results suggested that some Docker networks can outperform native deployment. The conclusion of the thesis suggests that if performance is the only consideration, then Docker networks that showed high performance can be used. However, real applications require more aspects than performance such as security, availability, and simplicity. Therefore Docker network should be carefully selected based on the requirements of the application.

    Download full text (pdf)
    fulltext
  • 187.
    Albertsson, Marcus
    et al.
    Linköping University, Department of Computer and Information Science.
    Öberg Bustad, Adrian
    Linköping University, Department of Computer and Information Science.
    Sundmark, Mattias
    Linköping University, Department of Computer and Information Science.
    Gerde, Elof
    Linköping University, Department of Computer and Information Science.
    Boberg, Jessika
    Linköping University, Department of Computer and Information Science.
    Abdulla, Ariyan
    Linköping University, Department of Computer and Information Science.
    Danielsson, Oscar
    Linköping University, Department of Computer and Information Science.
    Johnsson Bittmann, Felicia
    Linköping University, Department of Computer and Information Science.
    Moberg, Anton
    Linköping University, Department of Computer and Information Science.
    Hur en webbapplikation kan utvecklas för att leverera säkerhet, handlingsbarhet och navigerbarhet: PimpaOvven – Utveckling av en e-butik för märken och accessoarer till studentoveraller2017Independent thesis Basic level (degree of Bachelor), 12 credits / 18 HE creditsStudent thesis
    Abstract [en]

    Among students in many of Sweden’s Universities the student overall is an established possession. Many students like to decorate their overalls with embroidered patches and other types of accessories, the supply of these is however limited. This report presents the development process and result of the web application “PimpaOvven” – an e-shop with the purpose of increasing the accessibility of patches and overall accessories. The development has been iterative and focused on building a secure web application that generates a useable environment regarding actability and navigability that also provides an impression of security to the user. The methods used which generated the resulting web application together with the reference framework form the basis of the report’s discussion. During the project plenty of usability tests and security tests were conducted, from these tests together with the report’s discussion the conclusion was drawn that the produced web application was secure and useable.

    Download full text (pdf)
    Kandidatarbete TDDD83 PimpaOvven
  • 188.
    Albertsson, Sarah
    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.
    Rennes, Evelina
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering. 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.
    Similarity-Based Alignment of Monolingual Corpora for Text Simplification2016In: CL4LC 2016 - Computational Linguistics for Linguistic Complexity: Proceedings of the Workshop, The COLING 2016 Organizing Committee , 2016, p. 154-163Conference paper (Refereed)
    Abstract [en]

    Comparable or parallel corpora are beneficial for many NLP tasks.  The automatic collection of corpora enables large-scale resources, even for less-resourced languages, which in turn can be useful for deducing rules and patterns for text rewriting algorithms, a subtask of automatic text simplification. We present two methods for the alignment of Swedish easy-to-read text segments to text segments from a reference corpus.  The first method (M1) was originally developed for the task of text reuse detection, measuring sentence similarity by a modified version of a TF-IDF vector space model. A second method (M2), also accounting for part-of-speech tags, was devel- oped, and the methods were compared.  For evaluation, a crowdsourcing platform was built for human judgement data collection, and preliminary results showed that cosine similarity relates better to human ranks than the Dice coefficient. We also saw a tendency that including syntactic context to the TF-IDF vector space model is beneficial for this kind of paraphrase alignment task.

    Download full text (pdf)
    fulltext
  • 189.
    Albin, Odervall
    et al.
    Linköping University, Department of Computer and Information Science.
    Philip, Montalvo
    Linköping University, Department of Computer and Information Science.
    Design and Evaluation of a Reliable Group Communication Protocol2016Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    In distributed systems it is often useful to ensure that messages sent between processes in a group are received by all group members. This thesis presents Reliable Non-Ordered Multicast Protocol (RNOMP). We argue that it achieves reliable multicast between processes in groups that processes can leave and join arbitrarily. The protocol has been implemented on top of a group membership simulation which allows evaluation of the performance of the protocol while varying packet loss and the frequency at which processes leaves and joins groups. After analyzing how the protocol handles certain situations we conclude that our protocol achieves reliability and performs well within certain parameter values.

    Download full text (pdf)
    Design and Evaluation of a Reliable Group Communication Protocol
  • 190.
    Albinsson, Hannes
    et al.
    Linköping University, Department of Computer and Information Science.
    Bengtsson, Emil
    Linköping University, Department of Computer and Information Science.
    Survey data visualization in a web environment2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Briteback Explore is a service provided by the company Briteback. The service provides a survey tool to its users that allows access to results through the downloading of a comma-separated values (CSV) -file. What was built was a visualization model that provides the survey tool’s users with a graphical representation of the data directly through the service. Providing an overview of the survey results that lessens the amount of information overload perceived by the user while giving the data a structure. A survey based off of the System Usability Scale (SUS) evaluation method was then performed to display to what degree users found the new feature usable. Results showed a satisfactory high score on the SUS adjective rating scale.

    Download full text (pdf)
    fulltext
  • 191.
    Albinsson, Per-Anders
    et al.
    Swedish Defence Research Agency.
    Dahlbäck, Nils
    Linköping University, Department of Computer and Information Science, NLPLAB - Natural Language Processing Laboratory. Linköping University, The Institute of Technology.
    Morin, Magnus
    Linköping University, Department of Computer and Information Science, ASLAB - Application Systems Laboratory. Linköping University, The Institute of Technology.
    Coupling Models of Complexity and Models of Cognition in a Systems Design Process2003In: Proceedings of the Conference People in Control 2003 (PIC2003), November 4-6, 2003, Amsterdam, The Netherlands. 2003, 2003Conference paper (Refereed)
  • 192.
    Albinsson, Pär-Anders
    Linköping University, Department of Computer and Information Science. Linköping University, The Institute of Technology.
    Interacting with command and control systems: Tools for operators and designers2004Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    Command and control is central in all distributed tactical operations such as rescue operations and military operations. It takes place in a complex system of humans and artefacts, striving to reach common goals. The command and control complexity springs from several sources, including dynamism, uncertainty, risk, time pressure, feedback delays and interdependencies. Stemming from this complexity, the thesis approaches two important and related problem areas in command and control research. On a general level, the thesis seeks to approach the problems facing the command and control operators and the problems facing the designers in the associated systems development process.

    We investigate the specific problem of operators losing sight of the overall perspective when working with large maps in geographical information systems with limited screen area. To approach this problem, we propose high-precision input techniques that reduce the need for zooming and panning in touch-screen systems, and informative unit representations that make better use of the screen area available. The results from an experimental study show that the proposed input techniques are as fast and accurate as state-of-the-art techniques without the need to resort to zooming. Furthermore, results from a prototype design show that the proposed unit representation reduces on-screen clutter and makes use of off-screen units to better exploit the valuable screen area.

    Developing command and control systems is a complex task with several pitfalls, including getting stuck in exhaustive analyses and overrated reliance on rational methods. In this thesis, we employ a design-oriented research framework that acknowledges creative and pragmatic ingredients to handle the pitfalls. Our approach adopts the method of reconstruction and exploration of mission histories from distributed tactical operations as a means for command and control analysis. To support explorative analysis of mission histories within our framework, we propose tools for communication analysis and tools for managing metadata such as reflections, questions, hypotheses and expert comments. By using these tools together with real data from live tactical operations, we show that they can manage large amounts of data, preserve contextual data, support navigation within data, make original data easily accessible, and strengthen the link between metadata and supporting raw data. Furthermore, we show that by using these tools, multiple analysts, experts, and researchers can exchange comments on both data and metadata in a collaborative and explorative investigation of a complex scenario.

    List of papers
    1. Visual Exploration of Communication in Command and Control
    Open this publication in new window or tab >>Visual Exploration of Communication in Command and Control
    2002 (English)In: Proceedings of the 6th International Conference on Information Visualization, July 10–12, London, England,ISSN 1093-9547, 2002, p. 141-146Conference paper, Published paper (Refereed)
    Abstract [en]

    Communication is a central activity in command and control. However, analysing communication using linear transcription of large amounts of sequential data is tedious and time consuming. This paper describes an alternative approach for communication analysis based on visual exploration of abstract representations of communication. It introduces a visualisation technique based on the Attribute Explorer. The technique was implemented in a visualisation component embedded in a framework for coordinated presentation of temporal data. It is demonstrated using authentic communication data from a military exercise and a rescue operation.

    National Category
    Engineering and Technology
    Identifiers
    urn:nbn:se:liu:diva-14315 (URN)10.1109/IV.2002.1028769 (DOI)
    Available from: 2007-02-27 Created: 2007-02-27 Last updated: 2009-02-26
    2. High Precision Touch Screen Interaction
    Open this publication in new window or tab >>High Precision Touch Screen Interaction
    2003 (English)In: Proceedings of the ACM Conference on Human Factors Computing Systems, April 5–10, Fort Lauderdale, USA, 2003, p. 105–112-Conference paper, Published paper (Refereed)
    National Category
    Engineering and Technology
    Identifiers
    urn:nbn:se:liu:diva-14316 (URN)
    Available from: 2007-02-27 Created: 2007-02-27 Last updated: 2009-02-26
    3. Representing Military Units Using Nested Convex Hulls: Coping With Complexity in Command and Control
    Open this publication in new window or tab >>Representing Military Units Using Nested Convex Hulls: Coping With Complexity in Command and Control
    2002 (English)In: Proceedings of the 1st Swedish-American Workshop on Modeling and Simulation, October 30–31, Orlando, USA., 2002, p. 25-32Conference paper, Published paper (Refereed)
    National Category
    Engineering and Technology
    Identifiers
    urn:nbn:se:liu:diva-14317 (URN)
    Available from: 2007-02-27 Created: 2007-02-27 Last updated: 2009-02-26
    Download full text (pdf)
    FULLTEXT01
  • 193.
    Albinsson, Pär-Anders
    et al.
    FOI.
    Dahlbäck, Nils
    Linköping University, The Institute of Technology. Linköping University, Department of Computer and Information Science, NLPLAB - Natural Language Processing Laboratory.
    Morin, Magnus
    Visuell Systemteknik.
    Coupling Models of Complexity and Models of Cognition in a Systems Design Process2004Conference paper (Refereed)
  • 194.
    Albinsson, Pär-Anders
    et al.
    Linköping University, Department of Computer and Information Science. Linköping University, The Institute of Technology.
    Fransson, F.
    Representing Military Units Using Nested Convex Hulls: Coping With Complexity in Command and Control2002In: Proceedings of the 1st Swedish-American Workshop on Modeling and Simulation, October 30–31, Orlando, USA., 2002, p. 25-32Conference paper (Refereed)
  • 195.
    Albinsson, Pär-Anders
    et al.
    Linköping University, Department of Computer and Information Science.
    Morin, Magnus
    Linköping University, Department of Computer and Information Science, ASLAB - Application Systems Laboratory. Linköping University, The Institute of Technology.
    Visual Exploration of Communication in Command and Control2002In: Proceedings of the 6th International Conference on Information Visualization, July 10–12, London, England,ISSN 1093-9547, 2002, p. 141-146Conference paper (Refereed)
    Abstract [en]

    Communication is a central activity in command and control. However, analysing communication using linear transcription of large amounts of sequential data is tedious and time consuming. This paper describes an alternative approach for communication analysis based on visual exploration of abstract representations of communication. It introduces a visualisation technique based on the Attribute Explorer. The technique was implemented in a visualisation component embedded in a framework for coordinated presentation of temporal data. It is demonstrated using authentic communication data from a military exercise and a rescue operation.

  • 196.
    Albinsson, Pär-Anders
    et al.
    Linköping University, Department of Computer and Information Science.
    Zhai, S.
    High Precision Touch Screen Interaction2003In: Proceedings of the ACM Conference on Human Factors Computing Systems, April 5–10, Fort Lauderdale, USA, 2003, p. 105–112-Conference paper (Refereed)
  • 197.
    Albinsson, Sofia
    et al.
    Linköping University, Department of Computer and Information Science.
    Andersson, Hanna
    Linköping University, Department of Computer and Information Science.
    Dervisevic, Dina
    Linköping University, Department of Computer and Information Science.
    Sjöstedt, Helena
    Linköping University, Department of Computer and Information Science.
    Genus och programmering2002Report (Other academic)
    Abstract [sv]

    I rapporten kartläggs de rapporter som skrivits om utbildningar och undervisning i programmering ur ett genusperspektiv. Även försök att locka fler kvinnor, få dem att trivas och avsluta dessa utbildningar tas upp. Vi föreslår åtgärder för att förbättra programmeringskurserna som ges av Institutionen för datavetenskap vid Linköpings universitet. Diskussionen visar att kvinnor ibland ses som ett inslag i utbildningen och inte som likvärdiga deltagare. Utbildningarna måste stötta kvinnor och förstärka deras identitet som programmerare. Det är viktigt med kvinnliga förebilder för både kvinnliga och manliga studenter. I dagens undervisning premieras män och radikala förändringar måste ske för att inkludera de kvinnliga studenterna.

    Download full text (pdf)
    Genus och programmering
  • 198.
    Albrektson, Maja
    Linköping University, Department of Computer and Information Science.
    Att skapa en användarcentrerad återkopplingsrapport: En designprocess kring data2019Independent thesis Basic level (degree of Bachelor), 12 credits / 18 HE creditsStudent thesis
    Abstract [sv]

    Människor utsätts för mer information än någonsin tidigare. För att underlätta processandet av information är det viktigt att presentera informationen på rätt sätt - anpassat efter användaren. Detta projekt genomfördes i samarbete med Linköpings kommun och det övergripande syftet var att undersöka hur man kan utforma ett gränssnitt för de återkopplingsrapporter som ska nå ut till anställda på företaget. För den första frågeställningen “Vad önskar förvaltningarna för information/data i en återkopplingsrapport?” valdes en kvalitativ ansats och en tematisk analys utfördes utifrån data från nio intervjudeltagare som arbetade på kommunen. Analysen visade att den data förvaltningarna var mest intresserad av handlade om volym, kategorier, vidarekopplingar, service och jämförelser med andra förvaltningar. Resultaten av den tematiska analysen lade även grunden för att besvara resterande två frågeställningar - “Hur bör denna information visualiseras för att den lättast ska kunna förstås och användas?” samt “Hur skulle ett gränssnitt för återkopplingsrapporten till förvaltningarna kunna se ut?”. För att besvara dessa frågeställningar presenterades tidigare forskning om hur rapporter utformas idag och teori kring existerande gestaltlagar samtidigt som det producerades en persona, kontextscenarier, en kravspecifikation samt skisser och en temporär prototyp av dashboard-karaktär.

    Download full text (pdf)
    fulltext
  • 199.
    Al-egli, Muntaher
    et al.
    Linköping University, Department of Computer and Information Science.
    Zeidan Nasser, Adham
    Linköping University, Department of Computer and Information Science.
    Identifiering av anomalier i COSMIC genom analys av loggar2015Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Logs are an important part of any system; it provides an insight into what is happening. One of the biggest trends in the IT industry is analyzing logs and extracting essential information. The information in the logs are valuable resources that can be used to detect anomalies and manage them before it affects the user

    In this thesis we will dive into the basics of the information retrieval and analyze exceptions in the logs from COSMIC to investigate whether it is feasible to detect anomalies using retrospective data. This thesis also gives an insight into whether it’s possible to visualize data from logs and offer a powerful search engine. Therefore we will dive into the three well known applications that addresses the issues in centralized logging: Elasticsearch, Logstash and Kibana.

    In summary, our results shows that it’s possible to detected anomalies by applying statistical methods on both in retrospective and real time data.

    Download full text (pdf)
    fulltext
  • 200.
    Alegroth, Emil
    et al.
    Blekinge Inst Technol, Sweden.
    Borch Petersen, Eline
    Linköping University, Department of Clinical and Experimental Medicine, Division of Speech language pathology, Audiology and Otorhinolaryngology. Linköping University, Faculty of Medicine and Health Sciences.
    Tinnerholm, John
    Linköping University, Department of Computer and Information Science, Software and Systems. Linköping University, Faculty of Science & Engineering.
    A Failed attempt at creating Guidelines for Visual GUI Testing: An industrial case study2021In: 2021 14TH IEEE CONFERENCE ON SOFTWARE TESTING, VERIFICATION AND VALIDATION (ICST 2021), IEEE COMPUTER SOC , 2021, p. 340-350Conference paper (Refereed)
    Abstract [en]

    Software development is governed by guidelines that aim to improve the codes qualities, such as maintainability. However, whilst coding guidelines are commonplace for software, guidelines for testware are much less common. In particular, for GUI-based tests driven with image recognition, also referred to as Visual GUI Testing (VGT), explicit coding guidelines are missing. In this industrial case study, performed at the Swedish defence contractor Saab AB, we propose a set of coding guidelines for VGT and evaluate their impact on test scripts for an industrial, safety-critical system. To study the guidelines effect on maintenance costs, five representative manual test cases are each translated with and without the proposed guidelines in the two VGT tools SikuliX and EyeAutomate. As such, 20 test scripts were developed, with a combined development cost of more than 100 man-hours. Three of the tests are then maintained by one researcher and two practitioners for another version of the system and costs measured to evaluate return on investment. This analysis is complemented with observations and interviews to elicit practitioners perceptions and experiences with VGT. Results show that scripts developed with the guidelines had higher maintenance costs than scripts developed without guide-lines. This is supported by qualitative results that many of the guidelines are considered inappropriate, superfluous or unnecessary due to the inherent properties of the scripts, e.g. their natural small size, linear flows, natural separation of concerns, and more. We conclude that there are differences between VGT scripts and software that prohibit direct translation of guidelines between the two. As such, we consider our study as a failure but argue that several lessons can be drawn from our results to guide future research into guidelines for VGT and GUI-based test automation.

1234567 151 - 200 of 9089
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf