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  • 1.
    Ek, Tobias
    et al.
    Lund University, Lund, Sweden.
    Kirkegaard, Camilla
    Lund University, Lund, Sweden.
    Jonsson, Håkan
    Sony Ericsson, Lund, Sweden.
    Nugues, Pierre
    Lund University, Lund, Sweden.
    Named Entity Recognition for Short Text Messages2011Ingår i: Procedia - Social and Behavioral Sciences, ISSN 1877-0428, E-ISSN 1877-0428, Vol. 27, nr Pacling, s. 178-187Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This paper describes a named entity recognition (NER) system for short text messages (SMS) running on a mobile platform. Most NER systems deal with text that is structured, formal, well written, with a good grammatical structure, and few spelling errors. SMS text messages lack these qualities and have instead a short-handed and mixed language studded with emoticons, which makes NER a challenge on this kind of material.

    We implemented a system that recognizes named entities from SMSes written in Swedish and that runs on an Android cellular telephone. The entities extracted are locations, names, dates, times, and telephone numbers with the idea that extraction of these entities could be utilized by other applications running on the telephone. We started from a regular expression implementation that we complemented with classifiers using logistic regression. We optimized the recognition so that the incoming text messages could be processed on the telephone with a fast response time. We reached an F-score of 86 for strict matches and 89 for partial matches.

  • 2.
    Ho, Quan
    et al.
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Medie- och Informationsteknik. Linköpings universitet, Tekniska högskolan.
    Nguyen, Phong
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Medie- och Informationsteknik. Linköpings universitet, Tekniska högskolan.
    Åström, Tobias
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Medie- och Informationsteknik. Linköpings universitet, Tekniska högskolan.
    Jern, Mikael
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Medie- och Informationsteknik. Linköpings universitet, Tekniska högskolan.
    Implementation of a Flow Map Demonstrator for Analyzing Commuting and Migration Flow Statistics Data2011Ingår i: Procedia - Social and Behavioral Sciences, ISSN 1877-0428, E-ISSN 1877-0428, Vol. 21, s. 157-166Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The interest for statistics visualization is emerging with the rise of geovisual analytics on the internet. National and sub-national statistics foundations have started to migrate from tabular representations to interactive web-enabled visualizations that can show trends. Interactive web-enable visualizations for movement data (or flow data) such as trade flows or commuting flows, however, are still rare. This paper covers spatial interactions and animation for a wide variety of realized movements of people such as commuting and migration between an origin and a destination visually expressed by directed weighted arrows over a geographic space. The paper is built around an interactive flow map demonstrator that can interactively explore and communicate large spatio-temporal and multivariate statistical flow datasets using bidirectional flow arrows where both in-coming and out-going flows can be clearly shown coordinated and linked with a choropleth map, histogram or parallel coordinates plot. The demonstrator is implemented with low-level components from our geovisual analytics toolkit GAV Flash designed with the intention to shorten the time and effort needed to develop customized web-enabled interactive visualization applications such as the introduced flow map application.

  • 3.
    Holmgren, Johan
    Linköpings universitet, Institutionen för teknik och naturvetenskap, Kommunikations- och transportsystem. Linköpings universitet, Tekniska högskolan.
    Urban structure as determinant of short distance goods transport2012Ingår i: Procedia - Social and Behavioral Sciences, ISSN 1877-0428, E-ISSN 1877-0428, Vol. 39, s. 582-591Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    In this study, data on short distance goods transports is analysed in order to determine if variations in the amounts of goods generated could be explained by geographical and demographical variables. The main purpose is to see if the urbanization and concentration of economic activities has resulted in higher efficiency in the production process, thereby severing the link between increased economic activity and increased transport volumes. The study uses yearly data on freight transport made by truck in 21 Swedish counties between 2000 and 2009, making the number of observations 210. The final model estimated show that after taking geographical and demographical factors into account there is a negative relationship between economic activity and volume of goods transported. This indicates that it is possible to achieve economic growth without necessarily having to accept higher levels of goods transported locally.

  • 4.
    Jidesjö, Anders
    et al.
    Linköpings universitet, Institutionen för tema, Tema Miljöförändring. Linköpings universitet, Filosofiska fakulteten.
    Danielsson, Åsa
    Linköpings universitet, Institutionen för tema, Tema Miljöförändring. Linköpings universitet, Filosofiska fakulteten.
    Björn, Annika
    Linköpings universitet, Institutionen för tema, Tema Miljöförändring. Linköpings universitet, Filosofiska fakulteten.
    Interest and Recruitment in Science: A Reform, Gender and Experience Perspective2015Ingår i: Procedia - Social and Behavioral Sciences, ISSN 1877-0428, E-ISSN 1877-0428, Vol. 167, nr 0, s. 211-216Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This paper reports on Swedish results from a worldwide research project concerned with the Interest and Recruitment in Science Education (the IRIS-International study) together with results from a longitudinal national study on girl's views on out of school experience in science and technology in upper secondary education. The studies are framed in the structural situation of the Swedish educational system. The results show that there are reform and policy effects to consider in the discussion of recruiting more students in STEM. Interest in the subject, earlier school experience, achievement and teacher feedback is found to be important for educational choice in STEM. Specifically girls point out societal relevance as important. In addition there are elements outside the school setting with importance for educational choice. Moreover, girls point out visits to a museum and watching films and boys popularized forms of science and computer games. All students consider TV and activities outside school as important for their educational choice in STEM. When trying to implement outside school experience with girls in a longitudinal study in upper secondary education the interplay with school subject teaching is identified as missing. The friction between subject teaching in schools and connections with the surrounding world is proposed as important for future studies.

  • 5.
    Sakao, Tomohiko
    Linköpings universitet, Institutionen för ekonomisk och industriell utveckling, Industriell miljöteknik. Linköpings universitet, Tekniska högskolan.
    What is PSS design?: Explained with two industrial cases2011Ingår i: Procedia - Social and Behavioral Sciences, ISSN 1877-0428, E-ISSN 1877-0428, Vol. 25, s. 403-407Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This contribution presents results of applying a PSS (Product/Service System) design method to two cases in industry – one from manufacturing industry and another from service industry. The method is a structured and comprehensive design method that the author’s group has developed and is now called SPIPS. The method is shown effective to support designers with derive relevant improvement solutions. Then, brief discussion will be given about PSS design. The contribution will also show a stream behind SPIPS, originating from QFD (Quality Function Deployment).

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