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  • 1.
    A Herrera, I
    et al.
    Norwegian University Science and Technology NTNU.
    Woltjer, Rogier
    Linköping University, Department of Computer and Information Science, CSELAB - Cognitive Systems Engineering Laboratory. Linköping University, The Institute of Technology. Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Comparing a multi-linear (STEP) and systemic (FRAM) method for accident analysis2010In: RELIABILITY ENGINEERING and SYSTEM SAFETY, ISSN 0951-8320, Vol. 95, no 12, 1269-1275 p.Article in journal (Refereed)
    Abstract [en]

    Accident models and analysis methods affect what accident investigators look for, which contributory factors are found, and which recommendations are issued. This paper contrasts the Sequentially Timed Events Plotting (STEP) method and the Functional Resonance Analysis Method (FRAM) for accident analysis and modelling. The main issue addressed in this paper is the comparison of the established multi-linear method STEP with the new systemic method FRAM and which new insights the latter provides for accident analysis in comparison to the former established multi-linear method. Since STEP and FRAM are based on a different understandings of the nature of accidents, the comparison of the methods focuses on what we can learn from both methods, how, when, and why to apply them. The main finding is that STEP helps to illustrate what happened, involving which actors at what time, whereas FRAM illustrates the dynamic interactions within socio-technical systems and lets the analyst understand the how and why by describing non-linear dependencies, performance conditions, variability, and their resonance across functions.

  • 2.
    Adnan, Muhammad
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Usability Evaluation of Smart Phone Application Store2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    In this study, the usability of smart phone application store app is evaluated. The study was performed on different smart phone operating systems. Data about usability was gathered through surveys and think aloud based experiment. Anova analysis was also performed on data to identify significant issues. A lot of smartphone users reported issues with installing, locating and searching about apps. Many users had issues with uninstalling of apps and navigating the search results when looking for apps. The smartphone operating system and the app store does not provide seamless navigation and alot of content is not tailored for smart phone users.

  • 3.
    Ahmed, Ali
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    A Systematic Literature Review of "Usability Inspection Methods"2013Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Objective: Usability inspection methods are a class of usability evaluation methods, applied by usability evaluators to assess usability related aspects of different user interfaces. Different usability inspection methods are proposed so far to evaluate user interfaces in a better way. This systematic literature review summarized different usability evaluation methods, with more focus on two widely used inspection methods. The review also summarized the problems with these two methods and probable proposed solution to cope with these problems.

    Method: A systematic review method as described by Kitchenham [3] was followed to carry out this review. The identified problems in the review were structured in a form of questions. The search to find the relevant data that address the identified questions were conducted on the basis of planned search strategies. Papers were selected on the basis of inclusion and exclusion criteria in accordance with the quality checklist; followed by data extraction and synthesis strictly characterized by quality checklist, inclusion and exclusion criteria to attain better results.

    Results and discussion: Despite of its advantages there still exists many weaknesses in Heuristic evaluation (HE) and Cognitive walk-through (CW) methods. Different studies have highlighted different factors that may influence the results. Those factors include number of evaluators, evaluator’s perception and experience, time, environment, cost, indigenous design, the way method applied and acquired software.

    Conclusion: To get better evaluation results, it is best to use different techniques for usability evaluation of single software or optimize existing techniques.

  • 4.
    Ahrenberg, Lars
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Alignment2014In: Routledge Encyclopedia of Translation Technology / [ed] Chan Sin-wai, London and New York: Routledge, 2014, 395-408 p.Chapter in book (Refereed)
  • 5.
    Ahrenberg, Lars
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Chunk Accuracy: A Simple, Flexible Metric for Translation Quality2014In: LREC 2014 - NINTH INTERNATIONAL CONFERENCE ON LANGUAGE RESOURCES AND EVALUATION, European Language Resources Association, 2014Conference paper (Refereed)
    Abstract [en]

    n/a

  • 6.
    Ahrenberg, Lars
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Comparing machine translation and human translation: A case study2017In: Proceedings of The First Workshop on Human-Informed Translation and Interpreting Technology (HiT-IT) / [ed] Irina Temnikova, Constantin Orasan, Gloria Corpas and Stephan Vogel, Wolverhampton, UK, 2017, 21-28 p.Conference paper (Refereed)
    Abstract [en]

    As machine translation technology improves comparisons to human performance are often made in quite general and exaggerated terms. Thus, it is important to be able to account for differences accurately. This paper reports a simple, descriptive scheme for comparing translations and applies it to two translations of a British opinion article published in March, 2017. One is a human translation (HT) into Swedish, and the other a machine translation (MT). While the comparison is limited to one text, the results are indicative of current limitations in MT.

  • 7.
    Ahrenberg, Lars
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Converting an English-Swedish Parallel Treebank to Universal Dependencies2015In: Proceedings of the Third International Conference on Dependency Linguistics (DepLing 2015), Association for Computational Linguistics, 2015, 10-19 p., W15-2103Conference paper (Refereed)
    Abstract [en]

    The paper reports experiences of automatically converting the dependency analysis of the LinES English-Swedish parallel treebank to universal dependencies (UD). The most tangible result is a version of the treebank that actually employs the relations and parts-of-speech categories required by UD, and no other. It is also more complete in that punctuation marks have received dependencies, which is not the case in the original version. We discuss our method in the light of problems that arise from the desire to keep the syntactic analyses of a parallel treebank internally consistent, while available monolingual UD treebanks for English and Swedish diverge somewhat in their use of UD annotations. Finally, we compare the output from the conversion program with the existing UD treebanks.

  • 8.
    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 (UDW 2017) / [ed] Marie-Catherine de Marneffe, Joakim Nivre, and Sebastian Schuster, Linköping: Linköping University Electronic Press, 2017, 11-18 p.Conference 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?

  • 9.
    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.

  • 10.
    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, 1-10 p.Conference 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.

  • 11.
    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, 34-42 p.Conference 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.

  • 12.
    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, 2016, 154-163 p.Conference 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.

  • 13.
    Alm, Therese
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Design av en användarvänlig Androidapplikation för trådlös kommunikation med Electronic Control Unit för bil eller testmiljö2015Independent thesis Basic level (university diploma), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    This thesis has been carried out within the program Bachelor of Computer Science and Engineering at Linköping University in the spring of 2015 performed at the request of ArcCore in Linköping. The aim is to create and design a user friendly Android application which wirelessly can communicate with the electronic control units in a car or test environment.

    The Android application consists of five main screens, four whose task is to print the information travelling on the CAN bus. The five screens are start, fault codes, sensors, ECU Extract and overview. Start will take you to the other screens. Fault codes, print all the fault codes, sensors prints all sensors, the ECU extract prints all information and overview displays a virtual dashboard. User Evaluations have been conducted to develop both the design and layout of the application. The development process is executed by using extreme programming and the evaluations have been carried out with the help of traditional usability tests and binary success. The evaluations feedback has been used to develop both the design and the user friendliness of the application.

    The application has been developed in the Android Studio and communicates with the ECUs using a PEAK PCAN Wireless Gateway which is connected to the Hercules Development Kit TMS570 MCU.

    The result is that we can clearly see that the ease of use has increased during the development process and that we now by using evaluations have a nice and easy user-friendly Android application that can be used by all who wants to get the information available on the CAN bus.

  • 14.
    Andersson, André
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Selenium-Testing as a Service2016Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    Selenium has been a method to test web applications for over a decade, it is interacting directly with the browser and has gained support from both browsers and the community. With the growing amount of browsers, mobile devices and operating systems which a web application is expected to work with, services providing these systems for testing web applications against has gained interest. These services provide testing as a service (TaaS), and runs Selenium-tests in the cloud. This research tried to compare the different services with each other in regard to flexibility, cost, simplicity and reliability. I have also tried to see differences between running the tests locally and using these services. The results showed that there are some differences between the services, and the one best suited might depend on the web application.

  • 15.
    Andersson, Dennis
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Mission Experience: How to Model and Capture it to Enable Vicarious Learning2013Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    Organizations for humanitarian assistance, disaster response and military activities are characterized by their special role in society to resolve time-constrained and potentially life-threatening situations. The tactical missions that these organizations conduct regularly are significantly dynamic in character, and sometimes impossible to fully comprehend and predict. In these situations, when control becomes opportunistic, the organizations are forced to rely on the collective experience of their personnel to respond effectively to the unfolding threats. Generating such experience through traditional means of training, exercising and apprenticeship, is expensive, time-consuming, and difficult to manage.

    This thesis explores how and why mission experience should be utilized in emergency management and military organizations to improve performance. A multimedia approach for capturing mission experience has further been tested in two case studies to determine how the commanders’ experiences can be externalized to enable vicarious learning. These studies propose a set of technical, methodological, and ethical issues that need to be considered when externalizing mission experience, based on two aforementioned case studies complemented by a literature review. The presented outcomes are (1) a model aligning abilities that tactical organizations need when responding to dynamic situations of different familiarity, (2) a review of the usefulness of several different data sources for externalization of commanders’ experiences from tactical operations, and (3) a review of methodological, technical, and ethical issues to consider when externalizing tactical military and emergency management operations. The results presented in this thesis indicate that multimedia approaches for capturing mission histories can indeed complement training and exercising as a method for generating valuable experience from tactical missions.

  • 16.
    Andersson, Dennis
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Privacy and Distributed Tactical Operations Evaluation2011Conference paper (Refereed)
    Abstract [en]

    In this study, thoughts on ethics of workplace monitoring are being applied to the very special domain of evaluations of tactical operations, such as military or crisis management exercises or operations. I try to find out if there are differences in the way we should regard workplace monitoring when it comes to this domain compared to standard workplaces such as offices, since the purpose of the surveillance is not to enforce discipline, but to evaluate the organizations’ ability to conduct a tactical operation. The study focuses on issues such as privacy and informed consent and the main purpose of the investigation is to structure a consistent ethical standpoint when it comes to operations’ evaluation by making parallels to related theories that I found correct and applicable. I conclude that is indeed reasonable to place other demands on crisis management workers than we would do on other work forces, and that it should therefore be easier to motivate workplace monitoring for the purpose of evaluating distributed tactical operations. I argue however, just as Miller does regarding police work, that upholding privacy can be a real problem when crisis management personnel are exposed to monitoring, even though it is intended for evaluation.

  • 17.
    Andersson, Dennis
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Pilemalm, Sofie
    Linköping University, Department of Management and Engineering, Information Systems. Linköping University, The Institute of Technology.
    Hallberg, Niklas
    Linköping University, Department of Computer and Information Science. Linköping University, The Institute of Technology.
    Evaluation of Crisis Management Operations using Reconstruction and Exploration2008In: Proceedings of the 5th International ISCRAM Conference, Washington, DC: May 4-7 / [ed] Frank Fiedrich and Bartel Van de Walle, ISCRAM , 2008, 118-125 p.Conference paper (Refereed)
    Abstract [en]

    In this paper we present the Reconstruction and Exploration approach (R&E) and F-REX tool and their applications in a field exercise with the Swedish Rescue Services Agency with the purpose of investigating features needed for a computer supported approach for evaluation of large scale crisis management operations. After the exercise several interviews and one seminar were held to evaluate R&E as a representative for computer supported evaluation approaches for crisis management operations. Initial results indicate that multimedia presentation of key events from an operation can be very valuable not only to stimulate the participants to reflect on their own performance, but also to document and share lessons learned to non-participants.

  • 18.
    Andersson, Dennis
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Rankin, Amy
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Sharing Mission Experience in Tactical Organisations2012In: ISCRAM 2012 Conference Proceedings. Book of Papers. 9th International Conference on Information Systems for Crisis Response and Management / [ed] Leon Rothkrantz, Jozef Ristvej and Zeno Franco, ISCRAM , 2012Conference paper (Refereed)
    Abstract [en]

    A tactical organisation can be seen as an adhocracy designed to perform missions in uncertain, ambiguous and complex environments. Flexibility, adaptability, resilience, innovation, creativity and improvisation have all been identified as key skills for successful outcome of these missions. To learn skills associated with such abilities previous research has shown that knowledge acquired through experience plays an important role. It is therefore important that individuals, teams and organisations share and learn from experiences to improve their ability to cope with novel situations. In literature there is a lack of consistency in how these abilities are discussed, we therefore propose the FAIRIC model to help define and differentiate between the concepts. By unravelling some of the similarities and differences we create a common vocabulary to discuss knowledge gained from experience. This can help classify different experiences and provide a more systematic way of gathering knowledge on situational factors that influence the success of different actions and more unified interpretations that can assist design of knowledge representations to share mission experience over boundaries of time and space.

  • 19.
    Andersson, Dennis
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology. Swedish Def Research Agency, Linkoping, Sweden.
    Rankin, Amy
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Diptee, Darryl
    Naval Postgrad Sch, USA.
    Approaches to team performance assessment: a comparison of self-assessment reports and behavioral observer scales2017In: Cognition, Technology & Work, ISSN 1435-5558, E-ISSN 1435-5566, Vol. 19, no 2-3, 517-528 p.Article in journal (Refereed)
    Abstract [en]

    Human factors research popularly employs perception-based techniques to investigate team performance and its dependency to cognitive processes. Such studies frequently rely upon either observer-based or self-assessment techniques to collect data. In this study, we examined behavioral observer ratings and self-assessment ratings for measuring team performance in virtual teams, with team performance regarded as a combination of task outcome and team cognition. Juxtaposing self-assessments and observer ratings from a quasi-experiment comparing team performance rating techniques reveals that they indeed produce overall similar results, with both singling out teamwork effectiveness ratings as the strongest contributor to overall team performance. However, the comparisons show remarkably low correlation on individual questionnaire items. The most striking difference is that the team members self-assessments of workload are lower than the corresponding observer ratings. In particular, the self-assessments do not correlate at all with overall team performance, whereas the observers workload ratings are more consistent with contemporary research that suggests a strong correlation between workload and team performance, suggesting that observer-based techniques are more reliable than self-assessments for assessing workload. For other ratings, the results show that the two techniques are fairly equal, suggesting that the choice between methods to employ can be deferred to other considerations such as obtrusiveness, accessibility, and resource availability.

  • 20.
    Andersson, Gustav
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Implementing touch interaction in a casual mobile game2014Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    This thesis is to help developers in the touch design of casual games. The thesis work was made on the development platform Gideros Mobile and much of the thesis theory and methods will be based on that work. The purpose of the report is to show what one should think about when making a casual game in a touch design perspective, like taking into account that most people are used to one type of input design (like swiping or tapping), that you should design the game with the purpose to reach out to as a large audience as possible (taking into account people with disabilities) and some small notes on what should be avoided so not to deter people from wanting to play the game. It is important to note that this thesis is built for the purpose of mobile casual games, others will probably not find this thesis relevant.

  • 21.
    Andersson, Jonatan
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Assessment and Improvement of Initial Learnability in Complex Systems: A Qualitative Study to Promote Intuitive Software Development2016Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This Master’s Thesis aimed to assess and propose improvements for initial learnability in Sectra AB’s Picture Archiving Communication System (PACS) by integrating usability engineering and agile software development. Assessing initial learnability and re-designing complex systems is difficult as they have a high skill cap and take longer time to learn in comparison to simpler ones. Further, companies that use agile methodologies often focus on completing small items which might hide the overarching vision of a product that can lead to usability problems. While there are several methods for assessing usability, no research has specifically focused on assessing initial learnability in complex systems. This study however investigates how this may be achieved by combining current methodologies for measuring learnability with usability engineering and agile software development. Initial learnability issues and needs were assessed after evaluating Sectra PACS using 5 participants and analysed using impact mapping as well as conducting a focus group within the organisation that owns the product.

  • 22.
    Andersson, Matilda
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Användarbehov och kontextuella krav för val av mobil interaktionsteknik: Behovs- och användarundersökning i Scanias verkstäder2016Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [sv]

    Mobil informationsteknik har på senaste tiden fått mer uppmärksamhet inom industriella applikationer, inte minst inom underhåll och reparation där teknisk dokumentation förekommer i stor utsträckning. Scania har tagit fram ett nytt koncept för interaktion med teknisk dokumentation i verkstaden där en viktig del av konceptet är mobilitet. Scanias förhoppningar är att en ökad möjlighet till mobilitet ska kunna förbättra användarupplevelsen.

    I detta arbete har en observationsstudie genomförts för att identifiera användarnas behov av mobilitet vid reparation och underhållsarbete samt de kontextuella faktorer som påverkar val av mobil interaktionsteknik.

    Fyra olika behov av mobilitet kunde identifieras efter analysen och till dessa kunde olika krav knytas för att skapa ett underlag för bedömning av olika teknikers potential att uppfylla de aktuella behoven.

  • 23.
    Andersson, Robin
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Utveckling av tvådimensionellt online-spel i kategorin action-strategi för smartphones med fokus på spelupplevelse och prestanda2017Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [sv]

    Vid utveckling av spel till smartphones så krävs ofta flera olika implementationer för olika plattformar. Men det finns olika spelmotorer och ramverk till olika programspråk som kan kompilera samma kod till flera olika mobila plattformar. Kivy är ett sådant ramverk för programspråket Python.

    I detta arbete användes prototypdriven utveckling i Kivy för att försöka höja spelupplevelsen av ett tvådimensionellt online-spel i kategorin action-strategi som tidigare fanns implementerat i GameMaker. Olika tekniker för att öka prestandan för spelet testades också. Det visade sig att med den bästa kombinationen av de tekniker som testades så blev prestandan med hög last cirka 29 bilder/s. Användarbarheten, spelbarheten och ljud-estetiken av spelet ökades medan nöjet och den personliga tillfredställelsen från spelet minskade. Totalt sett blev spelupplevelsen i stort sätt oförändrad.

  • 24.
    Andersson, Tim
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Bluetooth Low Energy and Smartphones for Proximity-Based Automatic Door Locks2014Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    Bluetooth Low Energy is becoming increasingly popular in mobile applications due to the possibility of using it for proximity data. Proximity can be estimated by measuring the strength of the Bluetooth signal, and actions can then be performed based on a user's proximity to a certain location or object. One of the most interesting applications of proximity information is automating common tasks; this paper evaluates Bluetooth Low Energy in the context of using smartphones to automatically unlock a door when a user approaches the door. Measurements were performed to determine signal strength reliability, energy consumption and connection latency. The results show that Bluetooth Low Energy is a suitable technology for proximity-based door locks despite the large variance in signal strength.

  • 25.
    Andersson, Torbjörn
    et al.
    Linköping University, Department of Management and Engineering, Machine Design. Linköping University, The Institute of Technology.
    Warell, Anders
    Division of Industrial Design, Dept of Design Sciences, Lund University,.
    Holmlid, Stefan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Ölvander, Johan
    Linköping University, Department of Management and Engineering, Machine Design. Linköping University, The Institute of Technology.
    Desirability in the development of In-Car Infotainment Systems2011In: Workshop: User Experience in Cars / [ed] David Wilfinger, 2011Conference paper (Other academic)
    Abstract [en]

    This paper describes a workflow for designing experiences whileinteracting with an advanced driver assistant system. Future driver assistancesystems that utilize sensors and Car2X-communication in order to detect threatsin the car environment can help the driver to avoid collisions. To increase theacceptance of such a system, the interaction between the driver and the systemshould be able to generate positive experiences. To generate those experiences,a story-based design workflow was used. Concepts created with this workflowshould be able to address specific psychological needs of the driver. Theimplementation of this workflow revealed different schemes of positiveexperiences during driver interaction in critical situations.

  • 26.
    Andin, Karl
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Ahl, Andreas
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Mobile application for speech quality measurement2012Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    This report describes a bachelor thesis in computer science performed at the system department within the product development unit for GSM (Global System for Mobile communication) at Ericsson in Linköping.GSM can be considered a mature technology but it is still updated with new features on a regular basis. This requires that the technology also continuously is being tested. One technique that is used to perform quality tests is called PESQ (Perceptual Evaluation of Speech Quality). PESQ is a standardized algorithm to perform speech quality tests; it gives a score based on how a human would percept speech quality.The purpose of this thesis was to enhance the speech quality analysis process used when testing the GSM network. One goal was to analyze if it was possible to record and inject sound into a phone call and verify the possibility to execute the PESQ algorithm using a smartphone. Another goal was to develop a smartphone application to perform the described tasks.In order to do so an application for Android was developed. The development process included an investigation whether the Android platform supplies the functionality required. The investiga-tion showed that no general solution for recording and injecting audio into a phone call could be found. Recording was possible on some smartphones, but the characteristics of the recorded audio were not as desired. No solution for injecting audio into a phone call could be found for any of the tested smartphones.However, even though no solution for recording and injecting was found, an application was developed. The application was decided to be more of a proof of concept on how an application of this kind would work. It would also be a good foundation for future development. Suggested future work in order to integrate the application into the existing testing environment is to find alternative solutions for recording and injecting, maybe with the help of smartphone manu-facturers.

  • 27.
    Angerborn, Felix
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Better text formatting for the mobile web with javascript2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    As people read more and longer texts on the web, the simple formatting options that exists in todays browsers creates worse results than necessary. On behalf of Opera Software in Linköping, a better algorithm has been implemented in Javascript with the purpose of delivering a visually better experience for the reader. The implementation is first and foremost for mobile devices and therefore a large part of the thesis has been the evaluation and optimization of performance. 

  • 28.
    Anton, Stevensson
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Distributed User Interfaces for the Web2017Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    New ways of interaction between users and their computing devices has revealed that users are not only interested in sharing their data, but their user interfaces as well. This calls for an extension of the traditional notion of user interfaces, to a notion where user interfaces span over multiple devices: Distributed User Interfaces (DUIs). The purpose of this thesis is to identify challenges in developing Web based DUIs, and the result is a JavaScript library that aids the development of these types of interfaces. The development has been driven in an explorative fashion, to discover techniques that is appropriate to use, when moving ideas from existing DUI frameworks for the desktop, to the Web. Soundness of the implementation has been evaluated by measuring properties of the library source code that indicates maintainability and extensibility. The conclusion is that the library has the potential of answering the needs for future DUI development targeting the Web.

  • 29.
    Anzén, Philip
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Design av infotainment-system styrt av ögonrörelser i bilar: En explorativ studie för att ta fram ett förslag på hur man kan designa ett infotainment-system som har ögonrörelser som huvudsakliga interaktionsmetod med fokus på den funktionella designen.2014Independent thesis Basic level (degree of Bachelor), 12 credits / 18 HE creditsStudent thesis
    Abstract [sv]

    Denna studie har som syfte att ta fram ett designförslag på ett ögonrörelsestyrt infotainment-system samt utvärdera detta. Fokusen ligger på den funktionella design och dess för- och nackdelar. Studien tar upp tre olika designförslag varav ett valdes att göra en prototyp av. Prototypen skapades med hjälp av HTML5, Javascript och Python. Detta kopplades sedan samman med ett ögonrörelsesystem tillhörande Smart Eye AB. Prototypen användartestades och utvärderades med hjälp av en bilsimulator. Utvärderingen gjordes med hjälp av en enkät samt SUS-formulär. Enkäten resulterade i en kvalitativ utvärdering av prototypen medan SUS-värdet (69,88) pekar på att förbättringar bör göras för att öka den upplevda användbarheten. Studien innehåller även framtida förbättringsförslag för vidare utveckling. 

  • 30. Aroyo, Lora
    et al.
    Welty, ChrisAlani, HarithTaylor, JamieBernstein, AbrahamKagal, LalanaNoy, Natasha FridmanBlomqvist, EvaLinköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    The Semantic Web - ISWC 2011 - 10th International Semantic Web Conference, Bonn, Germany, October 23-27, 2011, Proceedings, Part I2011Conference proceedings (editor) (Other academic)
  • 31. Aroyo, Lora
    et al.
    Welty, ChrisAlani, HarithTaylor, JamieBernstein, AbrahamKagal, LalanaNoy, Natasha FridmanBlomqvist, EvaLinköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    The Semantic Web - ISWC 2011 - 10th International Semantic Web Conference, Bonn, Germany, October 23-27, 2011, Proceedings, Part II2011Conference proceedings (editor) (Other academic)
  • 32.
    Artman, Henrik
    et al.
    Totalförsvarets forskningsinstitut (FOI).
    Brynielsson, Joel
    Totalförsvarets forskningsinstitut (FOI).
    Johansson, Björn
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Trnka, Jiri
    Totalförsvarets forskningsinstitut (FOI).
    Dialogical Emergency Management and Strategic Awareness in Emergency Communication2011In: Proceedings of the 8th International ISCRAM Conference / [ed] Maria A. Santos, Julie Dugdale, David Mendonça, Lissabon, 2011, 1-9 p.Conference paper (Refereed)
    Abstract [en]

     This paper introduces two concepts—dialogical emergency management and strategic awareness—as means to use and understand the content of social media for the purpose of emergency communication. Dialogical emergency management denotes that the emergency management organizations follow what people publish in various social media on emergencies and ongoing emergency response, and then adjust their information strategies in a way that matches the expectations and needs for emergency information of ..

  • 33.
    Arvola, Mattias
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Grading in interaction design education using design practitioners conceptions of process quality2012In: Interacting with computers, ISSN 0953-5438, Vol. 24, no 6, 472-481 p.Article in journal (Refereed)
    Abstract [en]

    The designed product is often assessed in interaction design education, but there are also courses that focus on learning the design process. It is then necessary to develop criteria for grading in such courses. To make a successful transfer from theory to practice, students also need to learn the criteria practitioners use, rather than the criteria that academically oriented teachers use. To do this, one approach is to align criteria with the conceptions practicing interaction designers have of process quality in design. Therefore, the research questions for this study are what those conceptions are, and how they can be utilized in grading criteria for interaction design projects in education. Interviews were made with 10 interaction designers. The interviews were qualitatively analyzed. The results demonstrate that practicing interaction designers conceptualize the quality of the design process in three ways: it is good if established methods are used and the design is managed within resource constraints, and within organizational and technological limitations, while also meeting stated objectives; it is even better if the design has a thought-through rationale; and ideally, the design should also be inspirational. These conceptions were transferred to points on a criteria-referenced grading scale which was used to develop course specific grading criteria. The criteria were evaluated in terms of comprehensibility and reliability. The evaluation showed that most of the students who also attended lectures understood the criteria. A high and significant covariation and a high level of agreement between the two teachers who graded the projects were shown. Further, the developed criteria should be generalizable to other process-centered interaction design courses and to assessment in other design disciplines.

  • 34.
    Arvola, Mattias
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Interaction and Service Design as Offering Perspectives in a Space of Action2014In: Proceedings of DRS 2014: Design's Big Debates / [ed] Youn-kyung Lim, Kristina Niedderer, Johan Redström, Erik Stolterman, Anna Valtonen, Umeå: Umeå Institute of Design, Umeå University , 2014, 7-15 p.Conference paper (Refereed)
    Abstract [en]

    This paper makes the proposition that interaction and service design can be seen as offering perspectives in a space of action where acting agents grasp a finite perspective depending on objects of concern and equipment, and then reorganize the space. The meaning of this proposition is outlined in the paper, and it also presents a case study of client meetings at banks, which illustrates the proposition. That case show how equipment was used in the background while the clerk attended the client. The clerk made things available for the client in their shared region, directing the client’s perspective on the space of action. It was observed that equipment at times presented too rigid a perspective, not allowing the clerk to restructure it. Still, the clerk could make things available for himself or herself and for others, creating a multi-stable character of the region. Seeing interaction and service design in this way highlight the service moments as they appear to the individual agents who co-create the service throughout an encounter. The region set up by designers offers a frame of possible perspectives and an orientation in the service moment. 

  • 35.
    Arvola, Mattias
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Interaktionsdesign och UX: om att skapa en god användarupplevelse2014 (ed. 1)Book (Other academic)
    Abstract [sv]

    Interaktionsdesign och UX handlar om tekniker för att utforma nyskapande interaktiva produkter och tjänster med god användarupplevelse. God användarupplevelse, eller UX (eng. user experience), är det övergripande målet för designarbetet. Den här boken är tänkt som ett praktiskt stöd under hela designprocessen: från initiala insikter och formulerade avsikter, till konceptidéer och test av prototyper. Tyngdpunkten ligger på de tidiga faserna där designens inriktning slås fast.

    Boken vänder sig till yrkesverksamma som vill lära sig nya tekniker och arbetssätt, och till studenter som ska arbeta konkret med design av interaktiva produkter och tjänster.

  • 36.
    Arvola, Mattias
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    The Mediated Action Sheets: A Framework for the Fuzzy Front-End of Interaction and Service Design2013In: Crafting the Future: Proceedings of the 10th European Academy of Design Conference, 2013, 1-14 p.Conference paper (Refereed)
    Abstract [en]

    The front-end of the design process is where the design work is framed for the first time. It is the early part of the design work where the design team decides what to design rather than how to design something. It is often referred to as fuzzy, since it is very tentative in nature and the design team has yet to develop a sense of direction. In product design, the team, however, already knows that they are to develop some kind of physical product. In graphic design, the team knows that some sort of visual artefact is to be produced. In interaction and service design, the design team has a wider scope, aiming to shape the activities people perform. The problem this paper addresses is what to focus on in the fuzzy front-end of interaction and service design. We propose using the Mediated Action Sheets, which provide a framework based on socio-cultural theories of mediated action to structure the user research and idea generation phases of the design process. The Mediated Action Sheets consist of The Persona Sheet that is a structure for user research and developing personas, and The Concept Design Sheet for thinking concept ideas through in more detail. The paper provides examples of how they can be incorporated into the craftsmanship of interaction and service design.

  • 37.
    Arvola, Mattias
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Blomkvist, Johan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Holmlid, Stefan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Pezone, Giovanni
    Linköping University, Department of Computer and Information Science. Linköping University, Faculty of Science & Engineering.
    A Service Walkthrough in Astrid Lindgren's Footsteps2012In: Proceedings from ServDes.2012 Conference Proceedings Co-Creating Services, The 3rd Service Design and Service Innovation Conference, 8-10 February, Espoo, Finland, Linköping: Linköping University Electronic Press, 2012, 21-29 p.Conference paper (Refereed)
    Abstract [en]

    How can service prototypes be created and evaluated? This paper describes how methods like bodystorming and experience prototyping can be used in combination with pluralistic walkthrough in an evaluation method we call ‘service walkthrough’. We put the method to test in the development of augmented tourism services at the author Astrid Lindgren's childhood home. After initial design work, a mock-up and roleplay of a treasure hunt in the garden of the childhood home was made. It was evaluated using the service walkthrough method. The most important lesson learned was that a service walkthrough can be used to evaluate service prototypes and that it reveals information about practical as well as experiential issues for users.

  • 38.
    Arvola, Mattias
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Holm, Anna
    Linköping University, Department of Medical and Health Sciences, Cardiology. Linköping University, Faculty of Health Sciences. Linköping University, Department of Computer and Information Science.
    Device-orientation is more engaging than drag (at least in mobile computing)2014In: NordiCHI '14 Proceedings of the 8th Nordic Conference on Human-Computer Interaction: Fun, Fast, Foundational, New York: ACM Press, 2014, 939-942 p.Conference paper (Refereed)
    Abstract [en]

    Does device-orientation-based panning on mobile devices facilitate engagement? 20 users were asked to pan panoramas by turning around and changing the direction of the device, and by swiping with the finger on the touchscreen. The participants were also asked to rate how engaging they found it on the User Engagement Scale. It turned out that device-orientation-based panning was more engaging than drag-based panning. Moving your body to navigate information can pull you into an affective loop.

  • 39.
    Arvola, Mattias
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Holmlid, Stefan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Service Design Ways to Value-In-Use2016In: Service design geographies: Proceedings of the ServDes2016 Conference / [ed] Nicola Morelli, Amalia de Götzen, Francesco Grani, Linköping: Linköping University Electronic Press, 2016, Vol. 125, 530-536 p.Conference paper (Refereed)
    Abstract [en]

    What do we mean if we say that a service design work is an example of good design? This paper presents a provisional typology for the ways in which a service design proposal can contribute to value-in-use. The typology covers instrumentality, technical excellence, usefulness, social significance, mutual advantage, collective welfare, and aesthetic values. Moral implications related to norms, power structures and tensions between stakeholders are also considered. It is argued that the typology can facilitate service designers and researchers in framing and re-framing a design effort and conceptualise a value proposition. 

  • 40.
    Arvola, Mattias
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Holmlid, Stefan
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    User Experience Qualities and the Use-Quality Prism2015In: The fuzzy front end of experience design: Workshop proceedings / [ed] Eija Kaasinen, Hannu Karvonen, Yichen Lu, Jari Varsaluoma, Heli Väätäjä, Espoo: VTT , 2015Conference paper (Refereed)
    Abstract [en]

    Deciding the desirable user experience qualities, i.e. UX goals, for a future product or service is important but difficult. This case study explores how a set of qualities is articulated in the concept design process. The case is a project aimed at exploring the use of smartphones to augment the childhood home of Astrid Lindgren—the children’s book author—with stories about her life and authorship. The results showed that articulated UX qualities focused the design work. It was also observed that one set of desirable qualities does not fit all phases in a project, and design consequences propagate between aspects of UX quality. 

  • 41.
    Arvola, Mattias
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Nordvall, Mathias
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering. SICS East Swedish ICT, Linköping, Sweden.
    Broth, Mathias
    Linköping University, Department of Culture and Communication, Language and Culture. Linköping University, Faculty of Arts and Sciences.
    Transmodal interaction and user experience2016In: Proceedings of the 12'th SweCog Conference / [ed] Alexander Almér, Robert Lowe, Erik Billing, Skövde: The University of Skövde , 2016, 5-5 p.Conference paper (Other academic)
    Abstract [en]

    We are in a series of studies, ranging from news production to computer gaming, looking into the intersection of transmodal interaction and user experience. The purpose of this abstract is to outline the theoretical framework for that intersection. The first area we are studying is Transmodal Interaction, which is a concept that refer to a specific aspect of multimodal interaction. Human action is multimodal (Streeck, Goodwin, & LeBaron, 2011), and different sensory modes play an important role in action. However, little attention has been given to the intricate ways in which sensory modalities (seeing – drawing, hearing – saying, moving – touching, etc.) integrate, affect, and transform each other during the course of an activity. There are transformations of meaning in every new materialisation of an idea or a thought, partly depending on the communication potential of the sensory modality. This render what we refer to as a transmodal process where ideas and thoughts materialise action by action in an emergent sequence across relatively long and discontinuous timespans (Murphy, 2012). Over a sequence of actions, the meanings expressed in one modality, dynamically blend and shape what is expressed in other modalities. This produces, according to (Murphy, 2012) “a series of semiotic modulations in which certain core qualities persist, but others are noticeably transformed in the transition from one mode to another. (p. 1969)” We can, in intersemiotic translation (Jakobson, 1959) between modalities, address what is lost, how we introduce distortions, or even introduce perceptions of things that do not exist. A question is then how continuity of meaning and experience is preserved in modality changes. The second area we are studying is User Experience. The term refers to a person's perceptions and responses resulting from the use and/or anticipated use of a product, system or service (ISO, 2010). We employ a three level model of user experience based on Leontiev’s account of consciousness (Kaptelinin & Nardi, 2012; Leont ́ev, 1978), which also relate closely to Norman’s model of emotional design (Norman, 2005). The first level is the sensory fabric of consciousness, Norman refers to this as the visceral level. It is the largely subconscious level of how things feel. The second level is the personal meaning of things, related to what and how we do things action by action. Norman (ibid.) refers to this level as the behavioural level. The third level has to do with meaning, and what Norman refers to as a reflective level. It is the level of cultural meaning and what things mean for us in our socially and historically rooted activities. The intersection of these two areas constitutes our current focus of research. We are, in domains as different as news production and computer gaming, investigating persons’ perceptions and actions resulting from interaction with each other and with materialisations across different sensory modalities that give rise to intersemiotic translation effects. 

    References ISO. (2010). ISO 9241-210: 2010 Ergonomics of human-system interaction -- Part 210: Human-centred design. Geneva: International Standardization Organization. Jakobson, R. (1959). On linguistic aspects of translation. In R. A. Brower (Ed.), On translation (pp. 232-239). Cambridge, Mass.: Harvard University Press. Kaptelinin, V., & Nardi, B. (2012). Activity theory in HCI: Fundamentals and Reflections. Synthesis Lectures on Human-Centered Informatics, 5(1), 1-105.  Leont´ev, A. N. (1978). Activity, Consciousness, and Personality. Englewood Cliffs, NJ.: Prentice-Hall. Murphy, K. M. (2012). Transmodality and temporality in design interactions. Journal of Pragmatics, 44(14), 1966-1981. doi:10.1016/j.pragma.2012.08.013 Norman, D. A. (2005). Emotional design: Why we love (or hate) everyday things. New York, NY.: Basic Books. Streeck, J. r., Goodwin, C., & LeBaron, C. (2011). Embodied interaction: language and body in the material

  • 42.
    Arvola, Mattias
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Nordvall, Mathias
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Hägglund, Sture
    SICS East Swedish ICT.
    Hult, Lars
    SICS East Swedish ICT.
    Katarina, Bohm
    Karolinska Institutet, Institution of Clinical Science and Education, Södersjukhuset.
    Multi-Touchpoint Design of Multimodal Healthcare Services2016Conference paper (Refereed)
    Abstract [en]

    The purpose of this paper is to identify research themes and outline a research-through-design project that will explore opportunities and challenges in human-centred multi- touchpoint design for multimodal emergency calls, healthcare counselling, and elderly patient monitoring. Relevant research areas for the project include multimodal user interfaces and interaction, transmodality, accessibility, and multi-touchpoint user experience (UX) and service design. Research questions will primarily focus on opportunities and challenges of interaction and visualisation; dialogue and communication; and operations and organisation. On a higher level, beyond the specific case, the overarching research questions concern what roles modalities play in multi-touchpoint UX and service design. The knowledge contribution is a better understanding of how different modalities can be designed, employed, combined, and transduced in and between multiple touchpoints. 

  • 43.
    Arvola, Mattias
    et al.
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Walfridsson, Andreas
    Linköping University, Department of Computer and Information Science. Linköping University, Faculty of Science & Engineering.
    The Mediated Action Sheets: Structuring the Fuzzy Front-End of UX2015In: The fuzzy front end of experience design: Workshop proceedings / [ed] Eija Kaasinen, Hannu Karvonen, Yichen Lu, Jari Varsaluoma, Heli Väätäjä, Espoo: VTT , 2015Conference paper (Refereed)
    Abstract [en]

    Decisions about what to design, for whom, and why to design it, are made during the fuzzy front of user experience (UX) design. Our approach to structure this process is to use a theoretical and methodological framework based on mediated action. This position paper describes how we put the framework, called the Mediated Action Sheets, to test in UX design practice. The test consisted of two workshops with professional designers. Transcripts of video recordings and results were qualitatively analyzed. The results are used to improve the framework. 

  • 44.
    Ask, Per
    et al.
    Linköping University, Department of Biomedical Engineering, Physiological Measurements. Linköping University, The Institute of Technology.
    Hägglund, Sture
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Olsson, Jan
    Linköping University, Department of Management and Engineering. Linköping University, Faculty of Arts and Sciences.
    Pettersson, Nils-Erik
    Sjöqvist, Bengt-Arne
    Åhlfeldt, Hans
    Linköping University, Department of Biomedical Engineering, Medical Informatics. Linköping University, The Institute of Technology.
    36-nätet och "pensionärsdatorer" kan bidra till att lösa sjukvårdens problem2003In: Läkartidningen, ISSN 0023-7205, Vol. 100, no 14, 1257-1258 p.Article in journal (Refereed)
  • 45.
    Axelsson, Alfred
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Designing for usability of 3D configuration in E-commerce: Interactive design of 3D in web applications2017Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Mass production of consumer products is both wasteful and limit the consumers' power to influence the design of what they are buying. When shopping for a product, the customer must choose between a range of specific products with limited variations. What if the customer could make all the design choices, creating and buying the product according to his or her own needs?

    A 3D product generator holding a configurable model of a product was created to replace static content in online stores and give creative power to customers. This work aimed at creating an effective 3D product generator by evaluating how users experience the design of and interaction with it, and finding general design goals when introducing interactive 3D content in static 2D environments.

    A prototype of a 3D product generator in a generic online storefront was implemented in two iterations, improving on and evaluating the design through usability testing. The evaluation of the final prototype suggested that the interface was indeed effective in both design and interaction. This work concludes that user feedback is crucial to creating a successful user experience, which in turn is important when creating interfaces for product configuration.

  • 46.
    Axelsson, Anton
    et al.
    Uppsala University, Sweden.
    Andersson, Richard
    IT University of Copenhagen, Denmark; Lund University, Sweden.
    Gulz, Agneta
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences. Lund University, Sweden.
    Scaffolding Executive Function Capabilities via Play-&-Learn Software for Preschoolers2016In: Journal of Educational Psychology, ISSN 0022-0663, E-ISSN 1939-2176, Vol. 108, no 7, 969-981 p.Article in journal (Refereed)
    Abstract [en]

    Educational software in the form of games or so called "computer assisted intervention" for young children has become increasingly common receiving a growing interest and support. Currently there are, for instance, more than 1,000 iPad apps tagged for preschool. Thus, it has become increasingly important to empirically investigate whether these kinds of software actually provide educational benefits for such young children. The study presented in the present article investigated whether preschoolers have the cognitive capabilities necessary to benefit from a teachable-agent-based game of which pedagogical benefits have been shown for older children. The role of executive functions in childrens attention was explored by letting 36 preschoolers (3;9-6;3 years) play a teachable-agent-based educational game and measure their capabilities to maintain focus on pedagogically relevant screen events in the presence of competing visual stimuli. Even though the participants did not succeed very well in an inhibition pretest, results showed that they nonetheless managed to inhibit distractions during game-play. It is suggested that the game context acts as a motivator that scaffolds more mature cognitive capabilities in young children than they exhibit during a noncontextual standardized test. The results further indicate gender differences in the development of these capabilities.

  • 47.
    Axelsson, Nils
    Linköping University, Department of Computer and Information Science, Human-Centered systems.
    Dynamic Programming Algorithms for Semantic Dependency Parsing2017Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Dependency parsing can be a useful tool to allow computers to parse text. In 2015, Kuhlmann and Jonsson proposed a logical deduction system that parsed to non-crossing dependency graphs with an asymptotic time complexity of O(n3), where “n” is the length of the sentence to parse. This thesis extends the deduction system by Kuhlmann and Jonsson; the extended deduction system introduces certain crossing edges, while maintaining an asymptotic time complexity of O(n4).

    In order to extend the deduction system by Kuhlmann and Jonsson, fifteen logical item types are added to the five proposed by Kuhlmann and Jonsson. These item types allow the deduction system to intro-duce crossing edges while acyclicity can be guaranteed. The number of inference rules in the deduction system is increased from the 19 proposed by Kuhlmann and Jonsson to 172, mainly because of the larger number of combinations of the 20 item types.

    The results are a modest increase in coverage on test data (by roughly 10% absolutely, i.e. approx. from 70% to 80%), and a comparable placement to that of Kuhlmann and Jonsson by the SemEval 2015 task 18 metrics. By the method employed to introduce crossing edges, derivational uniqueness is impossible to maintain. It is hard to defien the graph class to which the extended algorithm, QAC, parses, and it is therefore empirically compared to 1-endpoint crossing and graphs with a page number of two or less, compared to which it achieves lower coverage on test data. The QAC graph class is not limited by page number or crossings.

    The takeaway of the thesis is that extending a very minimal deduction system is not necessarily the best approach, and that it may be better to start off with a strong idea of to which graph class the extended algorithm should parse. Additionally, several alternative ways of extending Kuhlmann and Jonsson are proposed.

  • 48.
    Axelsson, Robin
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Implementation och utvärdering av termlänkare i Java2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Aligning parallell terms in a parallell corpus can be done by aligning all words and phrases in the corpus and then performing term extraction on the aligned set of word pairs. Alternatively, term extraction in the source and target text can be made separately and then the resulting term candidates can be aligned, forming aligned parallell terms. This thesis describes an implementation of a word aligner that is applied on extracted term candidates in both the source and the target texts. The term aligner uses statistical measures, the tool Giza++ and heuristics in the search for alignments. The evaluation reveals that the best results are obtained when the term alignment relies heavily on the Giza++ tool and Levenshtein heuristic.

  • 49.
    Baburao, Swetha
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Development of a smartphone interface to support the visually impaired.2013Independent thesis Advanced level (degree of Master (Two Years)), 80 credits / 120 HE creditsStudent thesis
    Abstract [en]

    The World Health Organization (WHO) estimates that 2 billion people in the world will be aged 60 and over by the year 2050. Along with the aging process, there will be declination of sensory, physical and cognitive factors. Vision impairment is a worldwide problem faced by people of all ages. The usage of smartphones has escalated exponentially. Smartphones are now equipped with features like text to speech converters, speech interpreters, voice guided navigation, and intelligent assistants. Appropriately designed, these can be valuable tools for the visually impaired. However, despite the advanced accessibility implemented in the smartphones, the elderly still seems to prefer ordinary phones which have physical buttons. The aim of this thesis was twofold; (1) to identify factors hindering the elderly and their use of smartphones, and (2) to develop smartphone interfaces to improve accessibility.

    Two Android applications were developed in this thesis. The Magnifier is a magnification tool for physical objects and text. EyesFree is a text to speech service that reads out the screen content to the user. The requirements for the apps were elicited by studying existing applications and also by interviewing potential users. EyesFree and Magnifier were evaluated using the think aloud protocol method and the results show that they are useful applications for the visually impaired.

    The Android operating system provides a number of accessibility features and services to help the users with different abilities to navigate the device easily. Paradoxically, these features are quite difficult to use, for example, they are not easily launched and closed. The meta application and user interface of EyesFree exemplifies how users can access the internal features of the OS such as the speech services more effectively.

  • 50.
    Baroutsi, Nicoletta
    et al.
    Försvarshögskolan.
    Berggren, Peter
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Arts and Sciences.
    Johansson, Björn JE
    Linköping University, Department of Computer and Information Science.
    Nählinder, Staffan
    FOI.
    Granlund, Rego
    Linköping University, Department of Computer and Information Science.
    Turcotte, Isabelle
    Laval University.
    Tremblay, Sebastien
    Laval University.
    Assessing development of team training in emergency management2014In: Proceedings of the 11th ISCRAM, 2014Conference paper (Refereed)
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