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  • 101. Apiola, Mikko
    et al.
    Pakarinen, Saila
    Tedre, Matti
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Working Practices in One to One Computing: a Rural Tanzanian Case2013Inngår i: AFRICON, 2013, IEEE conference proceedings, 2013, 1-5 s.Konferansepaper (Fagfellevurdert)
    Abstract [en]

    In the past two decades computers have become a standard educational tool in the industrialized countries. Recently, equipping each student with a personal device (one-to-one computing, OLPC) has been enthusiastically advocated for developing countries, too. However, despite a number of pioneering research studies, broader analyses of pedagogical, technical, and organizational aspects of one-to-one computing in developing countries are largely missing. In this participatory action research in a rural Tanzanian primary school, we identified a number of pedagogical elements that were beneficial for teaching and utilizing ICT in the classroom. We pinpointed exploratory and self-regulated learning, group problem solving, and constructive principles as facilitators of learning within the one-to-one computing paradigm in this context. Our results show that the introduction of children's computers also triggered a number of changes in dynamics both within the school but also outside the school.

  • 102. Apiola, Mikko
    et al.
    Tedre, Matti
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Deepening Learning through Learning-by-Inventing2013Inngår i: Journal of Information Technology Education, ISSN 1547-9714, E-ISSN 1539-3585, Vol. 12, 185-202 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    It has been shown that deep approaches to learning, intrinsic motivation, and self-regulated learning have strong positive effects on learning. How those pedagogical theories can be integrated in computing curricula is, however, still lacking empirically grounded analyses. This study integrated, in a robotics-based programming class, a method of learning-by-inventing, and studied its qualitative effects on students’ learning through 144 interviews. Five findings were related with learning theories: changes in students’ problem management cycle, problem-rich learning environment, conceptions of the nature of computing, extension of deep and surface approaches to problem solving and management, and the use of robotics to facilitate deep learning strategies. Our analysis suggests that a combination of an open learning environment, robotics as the learning tool, and learning-by-inventing provides a conducive environment for deep learning strategies, intrinsic motivation, and self-regulated learning, which are prerequisite conditions for creativity and inventing.

  • 103. Apiola, Mikko
    et al.
    Tedre, Matti
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    New perspectives on the pedagogy of programming in a developing country context2012Inngår i: Computer Science Education, ISSN 0899-3408, E-ISSN 1744-5175, Vol. 22, nr 3, 285-313 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Programming education is a widely researched and intensely discussed topic. The literature proposes a broad variety of pedagogical viewpoints, practical approaches, learning theories, motivational vehicles, and other elements of the learning situation. However, little effort has been put on understanding cultural and contextual differences in pedagogy of programming. Pedagogical literature shows that educational design should account for differences in the ways of learning and teaching between industrialized and developing countries. However, the nature and implications of those differences are hitherto unclear. Using group interviews and quantitative surveys, we identified several crucial elements for contextualizing programming education. Our results reveal that students are facing many similar challenges to students in the west: they often lack deep level learning skills and problem-solving skills, which are required for learning computer programming, and, secondly, that from the students’ viewpoint the standard learning environment does not offer enough support for gaining the requisite development. With inadequate support students may resort to surface learning and may adopt extrinsic sources of motivation. Learning is also hindered by many contextually unique factors, such as unfamiliar pedagogical approaches, language problems, and cultural differences. Our analysis suggests that challenges can be minimized by increasing the number of practical exercises, by carefully selecting between guided and minimally guided environments, by rigorously monitoring student progress, and by providing students timely help, repetitive exercises, clear guidelines, and emotional support.

  • 104. Apiola, Mikko
    et al.
    Tedre, Matti
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Lattu, Matti
    Pasanen, Tomi A.
    Towards a Framework for Designing and Analyzing CS Learning Environments2012Inngår i: 2012 Frontiers in Education Conference Proceedings: Soaring to New Heights in Engineering Education, IEEE Computer Society, 2012, 600-605 s.Konferansepaper (Fagfellevurdert)
    Abstract [en]

    This paper focuses on understanding and develop- ing learning environments for computer science education. We present two models that we have successfully used in European and African contexts. The first model, Computer Science Learning Environments (CSLE), presents seven dimensions of computer science courses, which should be considered in learning environment design for computer science. The second model, Investigative Learning Environment (ILE), presents an action plan model, inspired by action research, for combining educational research and computer science teaching. In the empirical section we outline two case studies where these models were used to design and implement computer science learning environments in two different learning contexts. In the first case in University of Helsinki, Finland, we developed and studied a method of learning-by-inventing in a robotics programming course. That course was designed around problem discovery and inventing, and it employed LEGO (R) Mindstorms robots. In the second case in Tumaini University, Tanzania, we designed an environment for studying and improving introductory programming courses. Both models showed to be useful for designing, implementing, developing, and analyzing the courses in both learning contexts.

  • 105.
    Appelgren Heyman, Frej
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Olofsson, Mattias
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Hansson, Henrik
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Moberg, Jan
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Olsson, Ulf
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Can we rely on text originality check systems?: Evaluation of three systems used in higher education and suggestion of a new methodological test approach2012Inngår i: 5th International Plagiarism Conference Proceedings & Abstracts 2012: Celebrating Ten Years of Authentic Assessment (CD-ROM), Newcastle GB: Iparadigms Europe Ltd , 2012Konferansepaper (Fagfellevurdert)
    Abstract [en]

    This study investigates the reliability of three originality check systems from the university teacher's perspective. It also describes a method for evaluating this type of systems. The three systems are examined with respect to the time used for the search, the ability to find plagiarism and the layout of the similarity report. The study was conducted in conjunction with the national procurement of a new national agreement for originality check systems and a Swedish higher education institution choice of a new system. The background is the teachers' use of the originality check system as part of the pedagogical efforts to prevent plagiarism and detect suspected fraud. The study does not discuss the whole plagiarism issue in higher education. Instead it focuses on the method used for the evaluation of and comparison between systems. Over 68,000 words from 167 plagiarized references, from different sources and subject areas were used to test the systems. The results show that systems can find only a portion of the plagiarized texts that were sent in to the systems for control and that there are major differences between the capabilities of the systems. 20, 63 and respectively 84 of the 167 references were indicated as plagiarism. Turnitin conducted searches of up to five minutes while the other two systems sometimes took considerably more time for the analysis. The investigation of the originality reports´ interface revealed that factors the evaluators considered differed between these systems. This disclosed that the reports can be more or less difficult to interpret. We can therefore not solely rely on the originality check system´s reliability. Consequently this leads to the conclusion that other educational activities should be emphasized as a much needed complement in the work of preventing and detecting fraud in the form of plagiarism

  • 106. April, Alain
    et al.
    Kajko-Mattsson, Miroslawa E. J.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Workshop on Industrial Software Evolution and Maintenance Processes (WISEMP)2010Konferansepaper (Fagfellevurdert)
  • 107. Arborelius, Lotta
    et al.
    Fors, Uno
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Svensson, Anna-Karin
    Sygel, Kristina
    Kristiansson, Marianne
    A new interactive computer simulation system for violence risk assessment of mentally disordered violent offenders2013Inngår i: CBMH. Criminal behaviour and mental health, ISSN 0957-9664, E-ISSN 1471-2857, Vol. 23, nr 1, 30-40 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background Assessment of risk of future violence has developed from reliance on static indicators towards a more dynamic approach. In the latter context, however, the offender is seldom confronted with real life situations. Aims The aim of this study is to evaluate a computer-based system Reactions on Display, which presents human interactions based on real-life situations for its effectiveness in distinguishing between potentially violent offenders with mental disorder and a healthy comparison group. Methods Male offenders with autism spectrum disorders or psychosis were recruited from specialist forensic psychiatric units in Sweden and healthy participants from the local communities. Each consenting participant was presented with film clips of a man in neutral and violent situations, which at critical moments stopped the story to ask him to predict the thoughts, feelings and actions of the actor. Results Offender patients, irrespective of diagnosis, detected fewer emotional reactions in the actor in the non-violent sequence compared with controls. When asked to choose one of four violent actions, the offender patients chose more violent actions than did the controls. They also reported fewer physical reactions in the actors when actors were being violent. There were also some examples of incongruent or deviant responses by some individual patients. Conclusions and implications for practice The use of interactive computer simulation techniques is not only generally acceptable to offender patients, but it also helps to differentiate their current response style to particular circumstances from that of healthy controls in a way that does not rely on their verbal abilities and may tap more effectively into their emotional reactions than standard verbal questions and answer approaches. This may pave the way for Reactions on Display providing a useful complement to traditional risk assessment, and a training route with respect to learning more empathic responding, thus having a role in aiding risk management.

  • 108.
    Argaw, Atelach Alemu
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Resource Lenient Approaches to Cross Language Information Retrieval: Using Amharic2011Doktoravhandling, monografi (Annet vitenskapelig)
    Abstract [en]

    Information Retrieval (IR) deals with finding and presenting information from a collection of documents/data that are relevant to an information need (a query) expressed by a user. Cross Language Information Retrieval (CLIR) is a subfield of IR where queries are posed in a different language than that of the document collection. Computational linguistic tools and resources are essential to accomplish the tasks in CLIR and to date, CLIR research is dominated by a very limited number of languages for which such tools and resources are available. In order to facilitate global information sharing, it is important to enable access to information using as many languages as possible. This requires an investigation into the feasibility of CLIR for languages with a limited set of computational linguistic resources.

    Amharic is a well-studied language with a rich history and culture, but has very limited computational linguistic tools and resources. This dissertation provides an in depth investigation into a CLIR system for Amharic (against English and French document collections). Scalable techniques were developed to accomplish Amharic CLIR tasks and each task was evaluated individually as a stand alone experiment. Large scale IR experiments were then conducted in order to evaluate the effect of three parameters, namely, transliteration, word sense discrimination, and term selection based on part of speech tags, on the overall IR performance. The effects were measured by individually tuning each of these parameters through a series of benchmarking experiments, geared towards optimizing retrieval precision as well as recall. The results give an insight into the performance of the chosen approaches, the challenges, and their impact on the overall IR performance.

  • 109.
    Aronsson, Sanna
    et al.
    FOI, , .
    Artman, Henrik
    KTH, , .
    Larsson, Magnus
    FOI, , .
    Lindquist, Sinna
    FOI, , .
    Mitchel, Michael
    FOI, , .
    Ramberg, Robert
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Ungerth, Stefan
    FOI, , .
    LVC i vardagen: Framtidens flygträning2017Rapport (Annet vitenskapelig)
  • 110. Artman, Henrik
    et al.
    House, David
    Hultén, Magnus
    Karlgren, Klas
    Ramberg, Robert
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    The Interactionary as a Didactic Format in Design Education2015Inngår i: KTH Scholarship of Teaching and Learning 2015: Abstracts, Stockholm: KTH Royal Institute of Technology, 2015Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Project-based education allows students to explore real-world problems and challenges. It can also bemore cost-effective than traditional teaching and individual tutoring. However, projects are sometimes messy, need a long takeoff roll and risk being difficult to monitor by teachers. There is a need to better understand and support students’ creative design processes. We propose the ‘interactionary’ format as providing one way forward to meet these needs. An ‘interactionary’ is a highly time-constrained collaborative design assignment which forces students to complete a design task live on stage (Berkun, 2001). We present findings from three separate case studies in which the format has been tested. The studies involved students of interaction design (Ramberg, Artman, Karlgren, 2013) and chemical engineering (Artman, House, Hultén 2014) as well as multidisciplinary student teams (Artman, House, Hultén, Ramberg, Unpublished).

    Our results show that the interactionary as a didactic format engages students and allows them to explore a messy design space. Furthermore, three phases of the design process were identified in all studies: ideation, sketching and reflection/evaluation. The groups displayed differences in their multimodal approach to design. For example, the engineering students mainly made use of ephemeral communication strategies (gestures and speech) rather than sketching with physical materials, while the two other student groups employed physical materials (clay, lego, paper sketching) to a higher degree. Furthermore, there was a tendency for the design objective to override the specific competences of the participating individuals whereby the design process became a collaborative team effort. Students mainly made use of their everyday knowledge, indicating a need to better address domain knowledge (in interaction design, chemical engineering or other domains respectively). Nevertheless, all thirteen groups in the three studies articulated and produced prototypes and basic use-scenarios within the time-limit which shows that the format engages the students and enables a short project takeoff. There remains, however, the need for research into how teachers can instruct, coach and intervene in the design process as well as in the use of disciplined domain knowledge.

  • 111. Artman, Henrik
    et al.
    Karlgren, Klas
    Ramberg, Robert
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Strååt, Björn
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Designing Interaction in Interaction Design: Using interactionarires in order to understand student use of interaction design concepts2012Inngår i: Designs for Learning 2012: Conference Proceedings, Copenhagen, Denmark: Aalborg University , 2012, 14-16 s.Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Interaction design is about designing interaction. But how do first year students of interaction design understand and use concepts of interaction in their design processes? By interaction analysis of video material we analyse how students used concepts adhering to interaction. The aspect most frequently used was interactivity. Interaction was mainly handled by using spoken language. While working with physical materials, talk about interaction decreased.

  • 112.
    Arvola, Mattias
    et al.
    Linköping University, , .
    Arvid, Karsvall
    Linköping University, , .
    Tholander, Jakob
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Values and qualities in interaction design meetings2011Inngår i: The 9th International European Academy of Design Conference, Porto, Portugal, 2011Konferansepaper (Fagfellevurdert)
    Abstract [en]

    How are values and qualities expressed in interaction design? Previous research into this topic has largely been conceptual. How interaction designers and clients actually reason has only been touched upon in empirical studies. The research question for this paper is how interaction designers, as a collective and in an unfolding design process, concretize values and qualities in meetings with clients. By way of video recordings, we have analyzed two interaction design workshops. The analysis indicated that values were concretized top-down, from general conceptions and the design brief given, while also explored bottom-up. Several kinds of communicative means (e.g. talk, gestures, whiteboards, post-it notes) were used to animate values and design visions. Mixing a top-down and bottom-up approach allowed the designers to be both prescriptive and sensitive the uniqueness of the design situation. The differences in communicative means did not really matter for how values and qualities were made concrete. What mattered was that people really started talking with each other. Introduction

  • 113.
    Asiimwe, Edgar Napoleon
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Grönlund, Åke
    Örebro Universitet, Handelshögskolan, .
    MLCMS actual use, perceived use, and experiences of use2015Inngår i: ijEDict - International Journal of Education and Development using Information and Communication Technology, Vol. 11Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Mobile learning involves use of mobile devices to participate in learning activities. Most elearning activities are available to participants through learning systems such as learning content management systems (LCMS). Due to certain challenges, LCMS are not equally accessible on all mobile devices. This study investigates actual use, perceived usefulness and user experiences of LCMS use on mobile phones at Makerere University in Uganda. The study identifies challenges pertaining to use and discusses how to improve LCMS use on mobile phones. Such solutions are a cornerstone in enabling and improving mobile learning. Data was collected by means of focus group discussions, an online survey designed based on the Technology Acceptance Model (TAM), and LCMS log files of user activities. Data was collected from two courses where Moodle was used as a learning platform. The results indicate positive attitudes towards use of LCMS on phones but also huge challenges which are content related and technical in nature.

  • 114.
    Asiimwe, Edgar Napoleon
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Grönlund, Åke
    Örebro Universitet, Handelshögskolan, .
    On Mobile Learning with Learning Content Management Systems: A Contemporary Literature Review2014Inngår i: International Conference on Mobile and Contextual Learning (mLearn), Springer , 2014Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Learning Content management systems (LCMS) are important tools for organizing learning material and communication. Increasingly mobile technologies are used for internet access; particularly important in developing countries where broadband is scarce. Mobile LCMS introduce specific challenges, which are yet not fully addressed. This paper reviews the literature on mobile LCMS for the purpose of identifying current research focus, research gaps, and future research directions regarding how to bridge the gaps and leverage CMS technology to support “mobile learning”. The concept matrix method is used to collect and analyze literature. Five prominent research areas are found; Use, access, design and infrastructure; communication and collaboration; engagement and knowledge development; content and service delivery; and implementation experiences and evaluation. A major gap identified is that research does neither clearly nor thoroughly address the intersection between learning and technology. Adjusting technologies to learning contexts and environments is a key area for future research.

  • 115.
    Asiimwe, Edgar Napoleon
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Wairagala, Wakabi
    Örebro University, , Informatics.
    Grönlund, Åke
    Örebro Universitet, Handelshögskolan, .
    Using Technology for Enhancing Transparency and Accountability in Low Resource Communities: Experiences from Uganda.2013Inngår i: ICT for Anti-Corruption, Demoracy and Education in East Africa, Spider – The Swedish Program for ICT in Developing Regio , 2013Kapittel i bok, del av antologi (Annet vitenskapelig)
  • 116.
    Asiimwe, Edgar Napoleon
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Zubair Khan, Sana
    Örebro University, , Informatics.
    Ubiquitous Computing in Education: A SWOT Analysis by Students and Teachers2013Inngår i: 12th World Conference on Mobile and Contextual Learning (mLearn 2013), College of the North Atlantic, Qatar, October 22-24, 2013, QScience , 2013Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Learning from anywhere anytime is a contemporary phenomenon in the field of education that is thought to be flexible, time and cost saving. The phenomenon is evident in the way computer technology mediates knowledge processes among learners. Computer technology is however, in some instances, faulted. There are studies that highlight drawbacks of computer technology use in learning. In this study we aimed at conducting a SWOT analysis on ubiquitous computing and computer-mediated social interaction and their affect on education. Students and teachers were interviewed on the mentioned concepts using focus group interviews. Our contribution in this study is, identifying what teachers and students perceive to be the strength, weaknesses, opportunities and threats of ubiquitous computing and computer-mediated social interaction in education. We also relate the findings with literature and present a common understanding on the SWOT of these concepts. Results show positive perceptions. Respondents revealed that ubiquitous computing and computer-mediated social interaction are important in their education due to advantages such as flexibility, efficiency in terms of cost and time, ability to acquire computer skills. Nevertheless disadvantages where also mentioned for example health effects, privacy and security issues, noise in the learning environment, to

  • 117.
    Asker, Lars
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Alemu Argaw, Atelach
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Gambäck, Björn
    Norwegian University of Science and Technology, Trondheim, Norway; SICS, Swedish Institute of Computer Science AB, Kista, Sweden.
    Eyassu, Samuel
    Addis Ababa University, Addis Ababa, Ethiopia.
    Nigussie, Lemma
    Addis Ababa University, Addis Ababa, Ethiopia.
    Classifying Amharic Webnews2009Inngår i: Information retrieval (Boston), ISSN 1386-4564, E-ISSN 1573-7659, Vol. 12, nr 3, 416-435 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    We present work aimed at compiling an Amharic corpus from the Web and automatically categorizing the texts. Amharic is the second most spoken Semitic language in the World (after Arabic) and used for countrywide communication in Ethiopia. It is highly inflectional and quite dialectally diversified. We discuss the issues of compiling and annotating a corpus of Amharic news articles from the Web. This corpus was then used in three sets of text classification experiments. Working with a less-researched language highlights a number of practical issues that might otherwise receive less attention or go unnoticed. The purpose of the experiments has not primarily been to develop a cutting-edge text classification system for Amharic, but rather to put the spotlight on some of these issues. The first two sets of experiments investigated the use of Self-Organizing Maps (SOMs) for document classification. Testing on small datasets, we first looked at classifying unseen data into 10 predefined categories of news items, and then at clustering it around query content, when taking 16 queries as class labels. The second set of experiments investigated the effect of operations such as stemming and part-of-speech tagging on text classification performance. We compared three representations while constructing classification models based on bagging of decision trees for the 10 predefined news categories. The best accuracy was achieved using the full text as representation. A representation using only the nouns performed almost equally well, confirming the assumption that most of the information required for distinguishing between various categories actually is contained in the nouns, while stemming did not have much effect on the performance of the classifier.

  • 118.
    Asker, Lars
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Boström, Henrik
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Karlsson, Isak
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Papapetrou, Panagiotis
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Zhao, Jing
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Mining Candidates for Adverse Drug Interactions in Electronic Patient Records2014Inngår i: PETRA '14 Proceedings of the 7th International Conference on Pervasive Technologies Related to Assistive Environments, PETRA’14, New York: ACM Press, 2014Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Electronic patient records provide a valuable source of information for detecting adverse drug events. In this paper, we explore two different but complementary approaches to extracting useful information from electronic patient records with the goal of identifying candidate drugs, or combinations of drugs, to be further investigated for suspected adverse drug events. We propose a novel filter-and-refine approach that combines sequential pattern mining and disproportionality analysis. The proposed method is expected to identify groups of possibly interacting drugs suspected for causing certain adverse drug events. We perform an empirical investigation of the proposed method using a subset of the Stockholm electronic patient record corpus. The data used in this study consists of all diagnoses and medications for a group of patients diagnoses with at least one heart related diagnosis during the period 2008--2010. The study shows that the method indeed is able to detect combinations of drugs that occur more frequently for patients with cardiovascular diseases than for patients in a control group, providing opportunities for finding candidate drugs that cause adverse drug effects through interaction.

  • 119.
    Asker, Lars
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Boström, Henrik
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Papapetrou, Panagiotis
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Persson, Hans
    Identifying Factors for the Effectiveness of Treatment of Heart Failure: A Registry Study2016Inngår i: IEEE 29th International Symposiumon Computer-Based Medical Systems: CBMS 2016, IEEE Computer Society, 2016Konferansepaper (Fagfellevurdert)
    Abstract [en]

    An administrative health register containing health care data for over 2 million patients will be used to search for factors that can affect the treatment of heart failure. In the study, we will measure the effects of employed treatment for various groups of heart failure patients, using different measures of effectiveness. Significant deviations in effectiveness of treatments of the various patient groups will be reported and factors that may help explaining the effect of treatment will be analyzed. Identification of the most important factors that may help explain the observed deviations between the different groups will be derived through generation of predictive models, for which variable importance can be calculated. The findings may affect recommended treatments as well as high-lighting deviations from national guidelines.

  • 120.
    Asker, Lars
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Papapetrou, Panagiotis
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Boström, Henrik
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Learning from Swedish Healthcare Data2016Inngår i: Proceedings of the 9th ACM International Conference on PErvasive Technologies Related to Assistive Environments, Association for Computing Machinery (ACM), 2016, 47Konferansepaper (Fagfellevurdert)
    Abstract [en]

    We present two ongoing projects aimed at learning from health care records. The first project, DADEL, is focusing on high-performance data mining for detrecting adverse drug events in healthcare, and uses electronic patient records covering seven years of patient record data from the Stockholm region in Sweden. The second project is focusing on heart failure and on understanding the differences in treatment between various groups of patients. It uses a Swedish administrative health register containing health care data for over two million patients.

  • 121.
    Aspers, Patrik
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Sociologiska institutionen.
    Fuehrer, Paul
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Sociologiska institutionen.
    Sverrisson, Árni
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Sociologiska institutionen.
    Introduktion2004Inngår i: Bild och samhälle: visuell analys som vetenskaplig metod / [ed] Patrik Aspers, Paul Fuehrer, Árni Sverrisson, Lund: Studentlitteratur, 2004, 9-36 s.Kapittel i bok, del av antologi (Annet vitenskapelig)
  • 122.
    Aspling, Fredrik
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Juhlin, Oskar
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Theorizing Animal–Computer Interaction as Machinations2017Inngår i: International journal of human-computer studies, ISSN 1071-5819, E-ISSN 1095-9300, Vol. 98, 135-149 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The increased involvement of animals in digital technology and user-computer research opens up for new possibilities and forms of interaction. It also suggests that the emerging field of Animal–Computer Interaction (ACI) needs to reconsider what should be counted as interaction. The most common already established forms of interaction are direct and dyadic, and limited to domesticated animals such as working dogs and pets. Drawing on an ethnography of the use of mobile proximity sensor cameras in ordinary wild boar hunting we emphasize a more complex, diffuse, and not directly observable form of interaction, which involves wild animals in a technological and naturalistic setting. Investigating human and boar activities related to the use of these cameras in the light of Actor-Network Theory (ANT) and Goffman's notion of strategic interaction reveals a gamelike interaction that is prolonged, networked and heterogeneous, in which members of each species is opposed the other in a mutual assessment acted out through a set of strategies and counter-strategies. We stress the role of theory for the field of ACI and how conceptualizations of interaction can be used to excite the imagination and be generative for design. Seeing interaction as strategies and acknowledging the existence of complex interdependencies could potentially inspire the design of more indirect and non-dyadic interactions where a priori simplifications of design challenges as either human or animal can be avoided.

  • 123.
    Aspling, Fredrik
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Juhlin, Oskar
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Chiodo, Elisa
    Smelling, pulling, and looking: unpacking similarities and differences in dog and human city life2015Inngår i: Proceedings of the 12th International Conference on Advances in Computer Entertainment Technology, Association for Computing Machinery (ACM), 2015, 64Konferansepaper (Fagfellevurdert)
    Abstract [en]

    The problem of understanding animals, e.g., what they want and what they are doing, are recurrent matters for the emerging field of animal-computer interaction (ACI). We focus on animals in the city by bridging the field with urban studies and open up for new design opportunities in terms of the possibilities of new digital technology to re-configure animal city life. We present an ethnomethodological video analysis of the negotiations and interactional work between two leashed pugs and a handler walking down a street. We unpack similarities and differences between the two species in terms of their interests and intentions in an urban environment through detailed examination of the moments in the walk when the leash is pulled taut. We show how a strained leash can result from a conflict between the dog’s attentiveness towards other dogs by smelling and looking, and the human’s urge to move along. We propose design directions supporting the dogs’ wants and needs by accessing the handler with information on the dogs’ curiosities in other dogs by visualizing the invisible scent-universe of the dogs and encourage dog-dog interaction.

  • 124.
    Aspling, Fredrik
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Wang, Jinyi
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Juhlin, Oskar
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Plant-computer interaction, beauty and dissemination2016Inngår i: Proceedings of the Third International Conference on Animal-Computer Interaction, Association for Computing Machinery (ACM), 2016, 5Konferansepaper (Fagfellevurdert)
    Abstract [en]

    We inquire into ways of understanding plant interaction through a triangulation of four approaches: a multispecies ethnography of people's ordinary practices and doings in relation to sakura trees during their short blossoming season; readings of theoretical works on human-plant relations and plants' urge to spread; a systematic review of how plants are involved in computing and computer systems; and finally a review study on how cherry blossoms are used in design and architecture. We bring these together and propose to discuss the involvement of florae in computer systems and design items through the lens of understanding plant interaction as temporally extended dissemination and agency to spread. The design intent within Animal-Computer Interaction (ACI) has been to develop systems where non-human species are seen as "users". If such an approach is applied to plants, then we need to frame research in a direction that aims to give us an understanding of what these sorts of users are doing. Since the most successful forms of dissemination are hedonic, we argue that researchers should focus more specifically on system design that supports aesthetic interaction, rather than supporting abstract contemplation, as has been common within Human-Computer Interaction (HCI).

  • 125. Austrin, Per
    et al.
    Manokaran, Rajsekar
    Wenner, Cenny
    Stockholms universitet, Naturvetenskapliga fakulteten, Numerisk analys och datalogi (NADA). KTH - Royal Institute of Technology, Sweden.
    On the NP-Hardness of Approximating Ordering-Constraint Satisfaction Problems2015Inngår i: Theory of Computing, ISSN 1557-2862, E-ISSN 1557-2862, Vol. 11, 10Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    We show improved NP-hardness of approximating Ordering Constraint Satis-faction Problems (OCSPs). For the two most well-studied OCSPs, Maximum Acyclic Subgraph and Maximum Betweenness, we prove NP-hard approximation factors of 14/15+ε and 1/2+ε. When it is hard to approximate an OCSP by a constant better than takinga uniformly-at-random ordering, then the OCSP is said to be approximation resistant. We show that the Maximum Non-Betweenness Problem is approximation resistant and that there are width-m approximation-resistant OCSPs accepting only a fraction 1/(m/2)! of assignments. These results provide the first examples of approximation-resistant OCSPs only to P != NP.

  • 126.
    Ayele, Workneh Y.
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Juell-Skielse, Gustaf
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Hjalmarsson, Anders
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Johannesson, Paul
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    A Method for Designing Digital Innovation Contest Measurement Models2016Konferansepaper (Fagfellevurdert)
    Abstract [en]

    As contests become more popular means for organizing digital innovation, the need for measuring contest performance increases. The Digital Innovation Contest Measurement-model (DICM-model), which is the basis for this study was designed based on a single case study, and its evaluation indicated that there is a need for a customizable methodological approach that can accommodate differences in organizational requirements for designing and refining DICM-models. Therefore, in this paper, we present a summary of the evaluation of the DICM-model and propose a nine-step method to design and refine DICM-models using a quality oriented approach. The proposed method is based on the Goal-Question-Metric and the Balanced Scorecard to elicit measures and to enable agility in measuring the fulfilment of measurement goals of innovation contests. Also, the method facilitates knowledge management to refine, record and communicate best practices. An exante evaluation of the method indicates that the method provides practical support in designing and improving a DICM model. For future study, it is suggested to widen the scope of the method to aid in the design of measurement models for digital innovations using open data, in general.

  • 127.
    Ayele, Workneh Yilma
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Juell-Skielse, Gustaf
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Social Media Analytics and Internet of Things: Survey2017Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Due to the emergence of social media, there is a paradigm shift in the area of information production, processing and consumption. Hence, investigation in the utilization of open social media data is a relevant research topic. The openness of data, social media data, enables innovation and societal value creation. Social media analytics is an evolving research domain with interdisciplinary methods that are common in data mining such as text mining, social network analysis, trend analysis, and sentiment analysis. Also, social media analytics deals with development and evaluation of frameworks and informatics tools to process noisy and unstructured social media data. On the other hand, Internet of Things (IoT) enables the utilization of digital artifacts with well-established solutions and allows things to be connected regardless of location and time. However, a literature review about social media analytics and IoT integration is missing. In this paper, we conducted a systematic literature review of social media analytics and IoT integration. The literature review indicates that there are fewer research works done in the area of social media analytics and IoT compared to Data Mining and IoT. This paper facilitates discussion and elicits research potentials in social media analytics and IoT integration.

  • 128.
    Ayele, Workneh Yilma
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Juell-Skielse, Gustaf
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    User Implications for Cloud Based Public Information Systems: A Survey of Swedish Municipalities2015Inngår i: EGOSE 2015, 2015 Conference on Electronic Governance and Open Society: Challenges in Eurasia, Association for Computing Machinery (ACM) , 2015Konferansepaper (Fagfellevurdert)
    Abstract [en]

    The emergence of cloud computing has implications for digital service provision in the private and public sector. These implications can introduce opportunities and challenges for user organizations. Evaluation of implications by prioritization and reduction of variables aids in procurement and adoption of cloud based public information systems. However, so far little research is available to evaluate implications of cloud computing in the public sector. The evaluation of implications is carried out through a survey of Swedish municipalities. Quantitatively summarizing the collected data a list of prioritized implications were obtained. In addition to this through a statistical analysis technique called exploratory factor analysis the number of implications are reduced by grouping them into factors. The result shows that the most significant implications for cloud based public information systems are remote access from anywhere at any time, access to and flexibility to choose between state of the art technologies as well as large dependency on vendor and less customization possibilities. A prioritized list of implications is presented from the perspective of users of cloud based public information systems. Through factor analysis we are able to reduce the number of opportunities to six and challenges to four. For future research we suggest to evaluate implications of cloud based public information systems from suppliers’ perspective.

  • 129.
    Ayele, Workneh Yilma
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Juell-Skielse, Gustaf
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Hjalmarsson, Anders
    Johannesson, Paul
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Evaluating Open Data Innovation: a Measurement Model for Digital Innovation Contests2015Inngår i: PACIS 2015 proceedings, AIS electronic library , 2015, Vol. paper 204Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Digital innovation contests emerge as important intermediaries in open data markets. However the understanding of how contests affect innovation value chains is low and there is a lack of innovation measurement frameworks to support the management of digital innovation contests. Therefore, in this paper we apply design science to design a measurement model for digital innovation contests from the organizer’s perspective that adds to the available knowledge of innovation measurement. We use a recent case of digital innovation contests to motivate the model and discuss its implications on the innovation value chain. The measurement model contributes with new knowledge in the area of open data innovation and provides support for practice in managing innovation through digital innovation contests. For future research we intend to enhance the model to also measure the effects on innovation ecosystems, to operationalize the measures and to evaluate the model in several digital innovation contests as well as to include the perspective of the participants.

  • 130. Ayman Shamma, David
    et al.
    Brown, Barry
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Bentley, Frank
    Conversations In, Through, and Around Media Objects2015Inngår i: CHI 2015, Seoul, Korea, April 18 - 23, 2015, ACM Press ACM Press, 2015Konferansepaper (Fagfellevurdert)
  • 131.
    Back, Jon
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Designing Activity and Creating Experience: On People’s Play in Public places2013Licentiatavhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    This thesis deals with the design of play in public places; this can mean both pervasive games and other freer play activities. In these activities (as well as in many other game activities) the same game can spur many different ways to play it, and the same activity can be experienced differently by different players, and even differently on different occasions for the same player. An activity such as playing must be observed as a whole. The surrounding cul- ture, player preconceptions and the emergent mood within the group will affect the experience.

    By analysing previous frameworks, and using own design examples, a three level design framework is developed, functioning as a lens towards understanding the design of playful activities. The framework focuses on the player perspective, offering game design as an invitation and encouragement to engage in certain activities. The framework distinguishes between design at three levels:

    1. Designed construct (e.g. artefacts and rules)
    2. Activity
    3. Experiences

    But it remains to be understood why people engage in the activities that lead to playful experiences. What encourages playful engagement? And why do people want to play one game, and not another?

    This question can be split into two parts:

    • Engagement: starting to be interested in the activity
    • Commitment: actually caring for the experience

    This issue is identified in the thesis, and examples show how convoluted this problem is, in particular in pervasive game settings. Challenges are pre- sented for future work.

  • 132.
    Back, Jon
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Papadogoula, Fani Athina
    Waern, Annika
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    The Challenges of Designing a Gender-Aware Pervasive Game2012Konferansepaper (Annet vitenskapelig)
    Abstract [en]

    This paper describes our approach to designing a pervasive game with teenage girls as its main audience. In doing so, we are faced with two challenges: the challenge of gender-aware game design, and the challenge of integrating a pervasive game into the everyday lives of young women. In this paper, we describe our core design goals and the rationale for these goals. Based on these goals, we outline the core design elements, and how these were appreciated by a young women audience in a first player workshop.

  • 133.
    Backlund, Per
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Development Process Knowledge Transfer through Method Adaptation, Implementation, and Use2004Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    Information Systems Engineering (ISE) is an interdisciplinary approach to enable the realisation of successful information systems in a broad sense. ISE comprises a number of areas of expertise that must be integrated and managed in order to build information systems. Since ISE is becoming progressively more complex there is an increasing need to codify and manage knowledge within and about the ISE process.

    From a knowledge perspective the different model types created in an ISE project are examples of codified knowledge about the future system. The descriptions of how work should proceed are examples of codified knowledge of the process of creating the system. In summary, one of the main concerns in the ISE process is to manage the substantial amount of knowledge associated with the process as such as well as with the target domain of the actual development project and the developed software.

    In the thesis I recognise three areas of knowledge in ISE: development process knowledge, target domain knowledge, and software knowledge. Furthermore, I use a set of knowledge perspectives in order to describe and analyse ISE from a knowledge perspective. Finally, I introduce three aspects: organisation, artefact, and individual in order to be able to discuss and analyse how methods are actually used in organisations and how they affect the work situation.

    The results are presented in the form of a framework for knowledge transfer in ISE that comprises the knowledge perspective, the knowledge area, and the aspect of knowledge transfer. The framework is thus used to analyse the results from the six papers enclosed in the thesis. The results also comprise an empirical characterisation of a method in use which is based on data collected during an ethnographical study. Finally the results are made concrete in the form of a pattern collection for method introduction and method use.

  • 134.
    Bahati, Bernard
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap. University of Rwanda, Rwanda.
    Fors, Uno
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Hansen, Preben
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Using student-generated questions and peer-responses as a formative e-assessment strategy: Students acting as more knowledgeable others2017Inngår i: Proceedings of E-Learn: World Conference on E-Learning in Corporate, Government, Healthcare, and Higher Education / [ed] Jon Dron, Sanjaya Mishra, Association for the Advancement of Computing in Education, 2017, 108-117 s.Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Student-generated questions and peer-responses can support formative assessment practices through student self-questioning and peer scaffolding. So far, the studies on student-generated questions and peer-responses have focused on reading comprehension. This study focused on student-generated questions used in the context of the student-based formative e-assessment through peer scaffolding. This study's aim was two-fold: Firstly, we wanted to examine whether there was a relationship between the thinking levels exhibited in student-generated questions and the thinking levels exhibited in their corresponding peer-responses. Secondly, we wanted to analyse the level of students’ satisfaction with their peers’ responses. Using a Bloom’s Taxonomy-based assessment rubric, the student generated-questions and peer-responses were rated following three thinking levels: basic, medium, and high. The results show that the thinking levels exhibited in the student-generated questions are not the same as the thinking levels exhibited in their corresponding peer-responses. In addition, all students were not immediately satisfied with their peer-responses. In the end, we realised that through this exercise, the student-questioners and the student-respondents were respectively engaged in a “meaning-seeking” and “meaning-making” exercise and the longer the time for reaching the consensus, the more this exercise grew stronger and became much more significant.

  • 135.
    Bahati, Bernard
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Fors, Uno
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Tedre, Matti
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Can Student Engagement in Online Courses Predict Performance on Online Knowledge Surveys?2017Inngår i: International Journal of Learning, Teaching and Educational Research, Vol. XVIArtikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The link between student engagement and academic performance has been widely examined. However, most of these studies have focused on ascertaining the existence of such a relationship on the summative assessment level. By comparing students’ experience points in an online course and students’ scores on online knowledge surveys (KS), this study examined the relationship between student engagement and performance on online KS on the formative assessment level. Knowledge surveys were developed and formatively administered in four sections of an online Integration of ICT in Education course. Using Moodle Feedback Module, knowledge surveys were designed based on three key elements: learning objectives, the course content, and the revised Bloom’s Taxonomy of learning objectives. Using rated multiple choice KS questions, the correlation between students’ scores on KSs and students’ experience points was calculated using SPSS. The results show that students’ confidence levels in ability to answer KS questions increased in some of the course sections and decreased in others. The student engagement in online course was positively—but weakly—related to student performance on online KS and the strength of this relationship increased as the course unfolded. Our conclusion is that student engagement in online courses would not be an accurate predictor of student performance on online Knowledge surveys right at the beginning of an instructional process.

  • 136.
    Bahati, Bernard
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Tedre, Matti
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Fors, Uno
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Evode, Mukama
    Exploring feedback practices in formative assessment in Rwandan higher education: a multifaceted approach is needed2016Inngår i: International Journal of Teaching and Education, ISSN 1993-3916, Vol. IV, nr 2, 1-22 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Inspired by the current scholarship that indicates that, if used well, formative assessment and feedback can advance student’s learning, this paper explores the practices of feedback in formative assessment in Rwandan higher education, specifically at the University of Rwanda. The study used aqualitative approach with the aim of gaining lecturers’ and students’ perspectives on formative assessment and feedback; and exploring different ways formative assessment and feedback were practiced. Using data collected through interviews, student focus group discussions, and document analysis; the paper shows that formative assessment and feedback were understood in the context of binding prescription within the boundaries of limited description in academic regulations. Feedback was in most cases reduced to marks, and lecturers – who portrayed themselves as information providers, mastery checkers, and performance appraisers - were in full charge of all formative assessment efforts. The paper also shows that lack of clarity and feed forward instructionsin too-much-delayed lecturers’ written feedback led students to just receive feedback and not use it to enhance their performance. Building on this study’s findings and on the existing literature, the paper suggests three important moves whereby a collaborative research-based approach that will bring together different stakeholders will help to move away from a single-sided approach to a multifaceted approach in both perception and practice of formative assessment and feedback at the University of Rwanda.

  • 137.
    Bakari, Jabiri Kuwe
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    A Holistic Approach for Managing ICT Security in Non-Commercial Organisations: A Case Study in a Developing Country2007Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    The research reported here is about improvement of the ICT security management process in non-commercial organisations in order to reduce possible financial damage, taking into consideration the realities found in developing countries. The research took place in a developing country—Tanzania, where five organisations were involved.

    The study is organised into seven papers covering: the state of ICT security management in the organisations; prerequisites when utilising the existing ICT security management approaches in attaining a solution for managing ICT security in the organisations; issues and challenges of managing ICT security; important aspects to be taken into consideration in order to successfully manage ICT security; and how the management of ICT security in non-commercial organisations could be improved. Among others, the research was motivated by the observed need for bridging the perception gap between the management and technicians when dealing with the ICT security problem, and consequently extending to a common understanding by the staff in the various departments and specialities within and between the departments.

    The thesis contributes to increased empirical knowledge on the importance of the holistic ICT security management process. Particularly, our main contribution is the proposed holistic approach for managing ICT security in non-commercial organisations, organised in the form of guidelines with two main phases: the initialisation phase which involved the introduction of the ICT security management process in the organisation; and the internalised and continuous phase.

  • 138. Balke, Tina
    et al.
    Cranefield, Stephen
    Di Tosto, Gennaro
    Mahmoud, Samhar
    Paolucci, Mario
    Savarimuthu, Bastin Tony Roy
    Verhagen, Harko
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Simulation and NorMAS2013Inngår i: Normative Multi-Agent Systems, Dagstuhl: Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik , 2013, Vol. 4, 171-189 s.Kapittel i bok, del av antologi (Annet vitenskapelig)
    Abstract [en]

    In this chapter, we discuss state of the art and future perspective of the study of norms with simulative methodologies, in particular employing agent-based simulation. After presenting the state of the art and framing the simulative research on norms in a norm life-cycle schema, we list those research challenges that we feel more apt to be tackled by the simulative approach. We conclude the chapter with the indications for the realization of a NorMAS simulation platform, illustrated by selected scenarios. 

  • 139. Balke, Tina
    et al.
    Mahmood, Samhar
    Neumann, Martin
    Verhagen, Harko
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Analysing the Electrical Patient Recruiting Agent System using the WIT trinity2014Inngår i: Proceedings of the European Conference on Social Intelligence (ECSI-2014), 2014, 329-335 s.Konferansepaper (Fagfellevurdert)
  • 140.
    Barabanov, Rostyslav
    et al.
    Stockholm University, Social Sciences, DSV.
    Kowalski, Stewart
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Yngström, Louise
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Information Security Metrics: State of the Art: State of the art2011Annet (Annet (populærvitenskap, debatt, mm))
    Abstract [sv]

    Rapporten är en sammanställning och analys av forskning inom säkerhetsmetriker

  • 141.
    Barkhuus, Louise
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Television on the Internet: New Practices, New Viewers2009Inngår i: International Conference on Human Factors in Computing Systems, ACM , 2009Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Television is increasingly viewed through computers in the form of downloaded or steamed content, yet computer based television consumption has received little attention in HCI. In this paper we describe a study of the uses and practices of tech-savvy college students, studying their television consumption through the internet. We find that users personalize their viewing but that TV is still a richly social experience - not as communal watching, but instead through communication around television programs. We explore new possibilities for technology-based interaction around television.

  • 142.
    Barkhuus, Louise
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    The Mismeasurement of Privacy: Using Contextual Integrity to Reconsider Privacy in HCI2012Inngår i: CHI '12: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, New York: Association for Computing Machinery (ACM), 2012, 367-376 s.Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Privacy is a widely studied concept in relation to social computing and sensor-based technologies; scores of research papers have investigated people’s ‘privacy preferences’ and apparent reluctance to share personal data. In this paper we explore how Ubicomp and HCI studies have approached the notion of privacy, often as a quantifiable concept. Leaning on several theoretical frameworks, but in particular Nissenbaum’s notion of contextual integrity, we question the viability of obtaining universal answers in terms of people’s ‘general’ privacy practices and apply elements of Nissenbaum’s theory to our own data in order to illustrate its relevance. We then suggest restructuring inquiries into information sharing in studies of state-of-the-art technologies and analyze contextually grounded issues using a different, more specific vocabulary. Finally, we provide the first building blocks to such vocabulary.

  • 143.
    Barkhuus, Louise
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Brown, Barry
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    The Sociality of Fieldwork: Designing for Social Science Research Practice and Collaboration2012Inngår i: PROCEEDINGS OF THE 17TH ACM INTERNATIONAL CONFERENCE ON SUPPORTING GROUP WORK, Association for Computing Machinery (ACM), 2012, 35-44 s.Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Supporting scientific practice has been a longstanding goal of CSCW research. This paper explores how we might design for social science research practices and collaboration. Drawing on sixteen interviews with fieldwork-based social scientists we document the importance of small-scale long-term collaborative arrangements for research and intellectual work - pairs of researchers who work together in-depth over their careers, developing a common yet distinctive view of their research field. This contrasts with the large-scale short-lived collaborations that have classically been the target of cyber-infrastructure work. We describe technology practices among social scientists and how these can inform technology design for fieldwork practices.

  • 144.
    Barkhuus, Louise
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Brown, Barry
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Unpacking the television: User practices around a changing technology2009Inngår i: Transactions n Computer-Human Interaction, Vol. 16Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    This article investigates the changing television watching practices amongst early adopters of personal hard-disk video recorders (such as Tivo) and Internet downloading of video. Through in- depth interviews with 21 video enthusiasts, we describe how the rhythms of television watching change when decoupled from broadcast TV schedules. Devices such as Tivo do not simply replace videotapes; TV watching becomes more active as programs are gathered from the schedules, played from a stored collection and fast forwarded and paused during playback. Downloads users exploit the Internet to view shows and movies not broadcast, yet this watching is not fundamentally different from recording shows using a PVR, since both involve selection of shows from a limited range and a wait before the shows can be watched.

  • 145.
    Barkhuus, Louise
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Brown, Barry
    Mobile Life Centre @ Stockholm University, , .
    Bell, Marek
    University of Glasgow, , .
    Sherwood, Scott
    University of Glasgow, , .
    Hall, Malcolm
    University of Glasgow, , .
    Chalmers, Matthew
    University of Glasgow, , .
    Awareness and Repartee: Sharing location on the go2008Inngår i: International Conference on Human Factors in Computing Systems, ACM , 2008Konferansepaper (Fagfellevurdert)
  • 146.
    Barkhuus, Louise
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Cowan, Lisa
    University of California, San Diego, , .
    Griswold, William
    University of California, San Diego, , .
    Hollan, James
    University of California, San Diego, , .
    Engaging the Periphery for Visual Communication on Mobile Phones2010Inngår i: Hawaii International Conference on System Sciences, IEEE , 2010Konferansepaper (Fagfellevurdert)
    Abstract [en]

    While mobile phones have become ubiquitous instruments of communication and social interaction, they still require explicit interaction, placing high demands on attention. Engaging the periphery of users’ attention offers opportunities for awareness and interaction while reducing demands on attention and risks of disruption. We explore the mobile peripheral design space with Emotipix, an application for camera phones that turns the background of the phone’s display into a place for visual conversations. We conducted an exploratory 2-week user study with 6 pairs and one 4- person group, and found that Emotipix facilitated ongoing social practices. Our study shows that there is an unexploited opportunity to use mobile phones for peripheral awareness. We provide recommendations for managing users’ expectations, desires for control, and privacy in mobile peripheral display design.

  • 147.
    Barkhuus, Louise
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Engström, Arvid
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Zoric, Goranka
    Watching the footwork: second screen interaction at a dance and music performance2014Inngår i: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, New York: Association for Computing Machinery (ACM), 2014, 1305-1314 s.Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Interactive mobile technologies have become part of audience experiences of live performances in terms of both general media sharing and specific (sometimes official) extra content. At the same time, high bandwidth affords streaming of live events to mobile devices. We take advantage of these technologies in our high resolution, panoramic image video stream and study a scenario of audience members viewing the very same live event they are watching on a tablet. The video stream on the tablet is navigational and enables audience members to pan and zoom in the real-time video feed. We studied audience interaction and impressions in three performances of a dance and music show and found distinct uses of the second screen video stream. We emphasize that despite initial reluctance, the observed utilization of the technology opened up for new potential practices. Our study shows how working with perceived conflict in technology can still open up design space for interactive technologies.

  • 148.
    Barkhuus, Louise
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Jorgensen, Tobias
    Copenhagen University, , .
    Engaging the Crowd at Large Musical Events2008Inngår i: International Conference on Human Factors in Computing Systems, 2008Konferansepaper (Fagfellevurdert)
    Abstract [en]

    In this work-in-progress we explore audience behavior at large musical events and present our prototype, a ‘cheering meter’ developed to aid voting at rap competitions. We report from use of the cheering meter at eight concerts and conclude by highlighting how augmented interaction can increase the sense of participation among the audience at large-scale performances.

  • 149.
    Barkhuus, Louise
    et al.
    University of California, USA.
    Lecusay, Robert
    University of California, USA.
    Social Infrastructures as Barriers and Foundation for Informal Learning: Technology Integration in an Urban After-School Center2012Inngår i: Computer Supported Cooperative Work, ISSN 0925-9724, E-ISSN 1573-7551, Vol. 21, nr 1, 81-103 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    In this paper we explore the relationship between social learning environments and the technological ecologies that practitioners, learners, and researchers develop to sustain them. Through an examination of ethnographic research conducted at an urban after- school learning program we show how social, technological and power infrastructures influence learning and interaction in this setting. Adopting a holistic approach we examine how technologies are integrated into activities in this program to support the learning of the after-school youth. We emphasize both positive and negative infrastructures that contribute to the learning environment and discuss how identifying these infrastructures are one of the first steps towards understanding and informing technology design in informal learning settings.

  • 150.
    Barkhuus, Louise
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Polichar, Valerie
    Empowerment through seamfulness: Smart phones in everyday life2010Inngår i: Personal and Ubiquitous Computing, Vol. 15Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    In this paper, we describe research into use of multifunctional mobile phones by working adults and posit the device as a plausible realization of ubiquitous com- puting. We investigate how users actively adapt and adopt the different functions in smart phones to suit their needs and lifestyles. Through an interview and diary study, we discover how the smart phone is used in pragmatic and seamful ways, regardless of the interface of the specific phone selected or the particular features available. Users used phones in highly individual manners; mixed and adapted existing functions to meet their own priorities; added some functions and ignored others to create their own portfolio; and blended their use with the specifics of their everyday lives. While these data challenge some assumptions of human–computer interaction and ubiqui- tous computing, it also presents new research potential in terms of understanding how users take advantage of the multiple features in smart phone devices and how they utilize seamfulness in everyday smart phones practices.

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