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  • 1.
    Abadir Guirgis, Georg
    Linköpings universitet, Institutionen för datavetenskap.
    Lärarperspektiv på riskutbildningen för motorcyklister2011Självständigt arbete på grundnivå (kandidatexamen), 12 poäng / 18 hpStudentuppsats (Examensarbete)
    Abstract [sv]

    Under det senaste decenniet har det i Sverige blivit allt populärare att åka motorcykel. Enobligatorisk riskutbildning för behörighet A och A1 infördes från och med den 1 november2009. Då riskutbildningen är ny har få utvärderingar gjorts.Denna studie utvärderar riskutbildningen för motorcyklister utifrån trafikskolläraresperspektiv. Målet har varit att sammanställa synpunkter och erfarenheter från lärarna påutbildningen. Ett ytterligare mål har varit att undersöka trafikskollärarnas upplevda effekter avutbildningen på elevers trafikbeteende. Sex semistrukturerade intervjuer med trafikskolläraresamt en observationsstudie på olika trafikskolor genomfördes. Utöver detta genomfördesdeltagande observation av en fortbildning där 15 trafikskollärare deltog. Resultatet frånstudien visar att lärarna anser att behovet av riskutbildningen är stort och attimplementationen av den nya riskutbildningen gått bra. Förutom att elever efter utbildningenrefererar till den, vilket enligt lärarna indikerar att de tagit till sig vad som sagts, märks det nui större utsträckning än tidigare att elever kör lugnare och tänker sig mer för i vissasituationer. Detta påtalades vara ett klart önskvärt resultat.

  • 2.
    Abadir Guirgis, Georg
    Linköpings universitet, Institutionen för datavetenskap. Linköpings universitet, Filosofiska fakulteten.
    Mindre energi och rätt tid: Utvärdering av utbildning och träning för lokförare i energieffektiv körning – en simulatorstudie2013Självständigt arbete på avancerad nivå (masterexamen), 20 poäng / 30 hpStudentuppsats (Examensarbete)
    Abstract [sv]

    Under 1980-talet introducerades den första tågsimulatorn i svensk lokförarutbildning. Denna simulator är fortfarande den enda fullskalesimulator som används för att utbilda lokförare i Sverige. En anledning till att det inte finns fler tycks vara att det bl.a. saknas pedagogiska och ekonomiska motiv för en utvidgad användning av simulatorer i undervisning och träning. Energibesparingar inom spårtrafik dvs. att köra tåg energieffektivt är idag mycket aktuellt hos alla tågoperatörer i Sverige. Vissa operatörer utbildar redan sina förare teoretiskt i energieffektiv körning och tester av energieffektiv körning i verklig trafik har visat på en möjlig besparing om 16 % energi efter det att lokförare genomgått en teoretisk utbildning i energieffektiv körning. Då det emellertid fanns en del osäkerhet i mätdata från de tester som genomförts i verklig trafik och betingelserna samt försöksprocedur varierade mellan förarna fanns det ett behov av att undersöka besparingspotentialen under mer kontrollerade former. Dessutom visade sig att utbildning samt tillgång till ett stödsystem under körning gav en mindre besparing i energi (13 %). Således genomfördes en studie med hjälp av en tågsimulator. I simulatorn har man full kontroll på mätdata och betingelserna är lika för alla förare. Simulatorn som användes i studien är utvecklad på VTI (Statens väg- och transportforskningsinstitut) och är modellerad efter en X50 Regina. Syftet med denna studie var således att undersöka om samma teoretiska utbildning i energieffektiv körning, i kombination med simulatorträning under ideala förhållanden skulle ge lika bra eller bättre energibesparing jämfört med resultaten från tester i verklig trafik. Vidare undersöktes effekten av återkoppling under träningen med avseende på energibesparing. I studien deltog 24 lokförarelever som delades in i tre grupper med 8 elever i varje. Två av grupperna fick genomföra två körningar (referens- och testkörning) med utbildning och simulatorträning mellan tillfällena, medan den tredje gruppen (kontrollgrupp) endast genomförde referens- och testkörning utan utbildning och träning. De två grupperna som fick utbildning fick dock träna under två olika betingelser, en med återkoppling (energiförbrukning och banlutning) och en utan återkoppling. Det visade sig att utbildning i energieffektiv körning i kombination med 30 minuters simulatorträning resulterade i en total besparing för båda grupperna på ungefär 24 % energi, om man sen tar hänsyn till att man förbättrar sin körning genom att bara få tillfälle att köra upprepade gånger (kontrollgruppen använde 8 % mindre energi andra gången) så visade det sig att besparingen blev lika stor som den man fann i verklig trafik (16 %). Då resultaten blev lika fast betingelserna var olika finns det anledning till att vidare undersöka hur olika körförhållanden påverkar utfallet. Dessutom behöver man bättre förstå varför utbildning plus stödsystem gav mindre effekt än bara utbildning i verklig trafik samt varför återkoppling under träning inte gav någon påvisbar effekt. Det vill säga det finns anledning till ytterligare insatser för att utforma träning och stödsystem till förarna. Förutom energibesparing visade resultatet att rättidigheten förbättrades efter utbildning och simulatorträning. Resultaten talar för att det finns outnyttjad potential för tågsimulatorer i den svenska lokförarutbildningen både för att träna och utvärdera effekter av utbildningsinsatser.

  • 3.
    Abadir Guirgis, Georg
    et al.
    Statens väg- och transportforskningsinstitut, Trafik och trafikant,TRAF, Samspel människa, fordon, transportsystem, MFT.
    Peters, Björn
    Statens väg- och transportforskningsinstitut, Trafik och trafikant,TRAF, Samspel människa, fordon, transportsystem, MFT.
    Lidström, Mats
    Statens väg- och transportforskningsinstitut, Trafik och trafikant,TRAF, Fordonsteknik och simulering, FTS.
    Lokförarutbildning i Sverige: simulatoranvändning och ERTMS2014Rapport (Övrigt vetenskapligt)
    Abstract [sv]

    Detta notat ger en översiktlig bild av den obligatoriska grundutbildningen till lokförare i Sverige och belyser i vilken mån simulatorbaserad träning förekommer inom utbildningen. Rapporten visar vilka möjligheter och begränsningar som finns med att öka användningen av simulatorer i lokförarutbildningen, samt beskriver de viktigaste styrdokumenten för lokföraryrket och lokförarutbildningen. Vidare presenteras Transportstyrelsens utbildningsplan för förarbevis och de aktörer som bedriver grundutbildning, fortbildning och examination. Trafikverkets E-Learning för ERTMS, ERSA-simulatorn samt operatörsspecifika ERTMS-utbildningar vid SJ och Green Cargo beskrivs. Forskarna har dessutom undersökt svenska tågoperatörers och utbildares nuvarande användning och framtida behov av simulatorer för grund- och fortbildning av lokförare. Exempel från andra domäner där simulatorer används i utbildningssammanhang lyfts också fram i rapporten.

  • 4.
    Abbas, Muhammad Hassan
    et al.
    Linköpings universitet, Institutionen för datavetenskap.
    Khan, Mati-ur-Rehman
    Linköpings universitet, Institutionen för datavetenskap.
    Correlational Analysis of Drivers Personality Traits and Styles in a Distributed Simulated Driving Environment2007Självständigt arbete på grundnivå (yrkesexamen), 20 poäng / 30 hpStudentuppsats
    Abstract [en]

    In this thesis report we conducted research study on driver's behavior in T-Intersections using simulated environment. This report describes and discusses correlation analysis of driver's personality traits and style while driving at T-Intersections.

    The experiments were performed on multi user driving simulator under controlled settings, at Linköping University. A total of forty-eight people participated in the study and were divided into groups of four, all driving in the same simulated world.

    During the experiments participants were asked to fill a series of well-known self-report questionnaires. We evaluated questionnaires to get the insight in driver's personality traits and driving style. The self-report questionnaires consist of Schwartz's configural model of 10 values types and NEO-five factor inventory. Also driver's behavior was studied with the help of questionnaires based on driver's behavior, style, conflict avoidance, time horizon and tolerance of uncertainty. Then these 10 Schwartz's values are correlated with the other questionnaires to give the detail insight of the driving habits and personality traits of the drivers.

  • 5. Abdelhai, Rehab
    et al.
    Yassin, Sahar
    Ahmad, Mohamad F.
    Fors, Uno
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    An e-learning reproductive health module to support improved student learning and interaction: a prospective interventional study at a medical school in Egypt2012Ingår i: BMC Medical Education, ISSN 1472-6920, Vol. 12, 11- s.Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: The Public Health (PH) course at the medical college of Cairo University is based on traditional lectures. Large enrollment limits students' discussions and interactions with instructors. Aim: Evaluate students' learning outcomes as measured by improved knowledge acquisition and opinions of redesigning the Reproductive Health (RH) section of the PH course into e-learning and assessing e-course utilization. Methods: This prospective interventional study started with development of an e-learning course covering the RH section, with visual and interactive emphasis, to satisfy students' diverse learning styles. Two student groups participated in this study. The first group received traditional lecturing, while the second volunteered to enroll in the e-learning course, taking online course quizzes. Both groups answered knowledge and course evaluation questionnaires and were invited to group discussions. Additionally, the first group answered another questionnaire about reasons for non-participation. Results: Students participating in the e-learning course showed significantly better results, than those receiving traditional tutoring. Students who originally shunned the e-course expressed eagerness to access the course before the end of the academic year. Overall, students using the redesigned e-course reported better learning experiences. Conclusions: An online course with interactivities and interaction, can overcome many educational drawbacks of large enrolment classes, enhance student's learning and complement pit-falls of large enrollment traditional tutoring.

  • 6.
    Adnan, Muhammad
    Linköpings universitet, Institutionen för datavetenskap, Interaktiva och kognitiva system. Linköpings universitet, Tekniska högskolan.
    Usability Evaluation of Smart Phone Application Store2015Självständigt arbete på avancerad nivå (masterexamen), 20 poäng / 30 hpStudentuppsats (Examensarbete)
    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.

  • 7.
    Ahlström, Johannes
    Linköpings universitet, Institutionen för datavetenskap.
    Permutationer av omskrivningsregler: Egenskaper hos omskrivningsregler till lättläst svenska2013Självständigt arbete på grundnivå (kandidatexamen), 12 poäng / 18 hpStudentuppsats (Examensarbete)
    Abstract [sv]

    Studien ar en analysering av omskrivningsregler framtagna av Decker (2003), dessa omskrivningsregler har implementerats i ett verktyg som heter CogFLUX. Syftet med dessa omskrivningsregler ar att forenkla det svenska spraket och gora det mer lattlast. CogFLUX tar en given text som input och omskrivningsregler valjs ut och appliceras pa texterna med hjalp av verktyget. Detta verktyg returnerar sedan en omskriven text och de tre olika lasbarhetsmatten LIX, OVIX och NR for texten. Syftet med studien har varit att se huruvida olika permutationer av en given uppsattning omskrivningsregler ger olika resultat matt med lasbarhetsmatten samt om det finns kombinationer av omskrivningsregler som fungerar battre an andra. Utvardering har skett pa tre olika texttyper pa vardera ca 5000 ord. Resultaten har visat att olika permutationer av omskrivningsregler inte ger nagon matbar effekt matt med lasbarhetsmatt. Av totalt atta applicerade omskrivningsregler har fyra visat sig vara effektiva och forenkla texter matt med lasbarhetsmatten.

  • 8.
    Ahlén, Björn
    Högskolan i Skövde, Institutionen för kommunikation och information.
    Äldre och teknologiska hjälpmedel: interaktionsmönster som metod för att studera hur teknik i framtiden kan användas inom äldreomsorgen.2005Självständigt arbete på grundnivå (kandidatexamen)Studentuppsats
    Abstract [sv]

    Ny teknologi har skapat nya möjligheter inom utvecklingen av teknologi för äldre. Kunskap behövs om de äldres behov och vilka situationer i vardagen som skulle kunna underlättas av teknik för att minska de äldres beroende av andra människor. I utvecklingen av ett interaktivt teknologiskt hjälpmedel en så kallad virtual companion har en etnografisk studie gjorts för att kartlägga vardagen på ett äldreboende och interaktionen mellan vårdgivare och vårdtagare. Dessa har strukturerats upp i interaktionsmönster för att bli ett underlag till funktioner som skall implementeras i hjälpmedlet.

  • 9.
    Ahlén, Niclas
    Högskolan i Skövde, Institutionen för datavetenskap.
    En situerad ansats för utvecklingen av en räknande robot2003Självständigt arbete på grundnivå (kandidatexamen)Studentuppsats
    Abstract [sv]

    Den situerade ansatsen inom artificiell intelligens har i tidigare experiment visat på stora möjligheter vid utvecklingen av enkla beteenden. Ansatsens framgångar är dock inte lika tydliga när det kommer till utvecklingen av mer komplexa beteenden som i högre grad påminner om de experiment som gjorts inom traditionell artificiell intelligens. I studien utvecklas en agent med ett ”Extended Sequential Cascaded Network” som kontrollarkitektur för att lösa en uppgift som kräver ett ”räkneliknande beteende”. Utvecklingen av nätverket grundas på en situerad syn på kognition, däribland att designern i så liten grad som möjligt skall styra utvecklingen. Experimentets resultat visar på en agent som inte ens löser den enklaste versionen av uppgiften. I diskussionen härleds misslyckandet till svårigheterna med en designeroberoende utveckling.

  • 10.
    Ahmad, Azeem
    et al.
    Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation.
    Kolla, Sushma Joseph
    Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation.
    Effective Distribution of Roles and Responsibilities in Global Software Development Teams2012Självständigt arbete på avancerad nivå (masterexamen)Studentuppsats (Examensarbete)
    Abstract [en]

    Context. Industry is moving from co-located form of development to a distributed development in order to achieve different benefits such as cost reduction, access to skillful labor and around the clock working etc. This transfer requires industry to face different challenges such as communication, coordination and monitoring problems. Risk of project failure can be increased, if industry does not address these problems. This thesis is about providing the solutions of these problems in term of effective roles and responsibilities that may have positive impact on GSD team. Objectives. In this study we have developed framework for suggesting roles and responsibilities for GSD team. This framework consists of problems and casual dependencies between them which are related to team’s ineffectiveness, then suggestions in terms of roles and responsibilities have been presented in order to have an effective team in GSD. This framework, further, has been validated in industry through a survey that determines which are the effective roles and responsibilities in GSD. Methods. We have two research methods in this study 1) systematic literature review and 2) survey. Complete protocol for planning, conducting and reporting the review as well as survey has been described in their respective sections in this thesis. A systematic review is used to develop the framework whereas survey is used for framework validation. We have done static validation of framework. Results. Through SLR, we have identified 30 problems, 33 chains of problems. We have identified 4 different roles and 40 different responsibilities to address these chains of problems. During the validation of the framework, we have validated the links between suggested roles and responsibilities and chains of problems. Addition to this, through survey, we have identified 20 suggestions that represents strong positive impact on chains of problems in GSD in relation to team’s effectiveness. Conclusions. We conclude that implementation of effective roles and responsibilities in GSD team to avoid different problems require considerable attention from researchers and practitioners which can guarantee team’s effectiveness. Implementation of proper roles and responsibilities has been mentioned as one of the successful strategies for increasing team’s effectiveness in the literature, but which particular roles and responsibilities should be implemented still need to be addressed. We also conclude that there must be basic responsibilities associated with any particular role. Moreover, we conclude that there is a need for further development and empirical validation of different frameworks for suggesting roles and responsibilities in full scale industry trials.

  • 11.
    Ahmed, Nisar
    et al.
    Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation.
    Yousaf, Shahid
    Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation.
    For Improved Energy Economy – How Can Extended Smart Metering Be Displayed?2011Självständigt arbete på avancerad nivå (masterexamen)Studentuppsats (Examensarbete)
    Abstract [en]

    Context: A District Heating System (DHS) uses a central heating plant to produce and distribute hot water in a community. Such a plant is connected with consumers’ premises to provide them with hot water and space heating facilities. Variations in the consumption of heat energy depend upon different factors like difference in energy prices, living standards, environmental effects and economical conditions etc. These factors can manage intelligently by advanced tools of Information and Communication Technology (ICT) such as smart metering. That is a new and emerging technology; used normally for metering of District Heating (DH), district cooling, electricity and gas. Traditional meters measures overall consumption of energy, in contrast smart meters have the ability to frequently record and transmit energy consumption statistics to both energy providers and consumers by using their communication networks and network management systems. Objectives: First objective of conducted study was providing energy consumption/saving suggestions on smart metering display for accepted consumer behavior, proposed by the energy providers. Our second objective was analysis of financial benefits for the energy provides, which could be expected through better consumer behavior. Third objective was analysis of energy consumption behavior of the residential consumes that how we can support it. Moreover, forth objective of the study was to use extracted suggestions of consumer behaviors to propose Extended Smart Metering Display for improving energy economy. Methods: In this study a background study was conducted to develop basic understanding about District Heat Energy (DHE), smart meters and their existing display, consumer behaviors and its effects on energy consumption. Moreover, interviews were conducted with representatives of smart heat meters’ manufacturer, energy providers and residential consumers. Interviews’ findings enabled us to propose an Extended Smart Metering Display, that satisfies recommendations received from all the interviewees and background study. Further in this study, a workshop was conducted for the evaluation of the proposed Extended Smart Metering Display which involved representatives of smart heat meters’ manufacture and residential energy consumers. DHE providers also contributed in this workshop through their comments in online conversation, for which an evaluation request was sent to member companies of Swedish District Heating Association. Results: Informants in this research have different levels of experiences. Through a systematic procedure we have obtained and analyzed findings from all the informants. To fulfill the energy demands during peak hours, the informants emphasized on providing efficient energy consumption behavior to be displayed on smart heat meters. According to the informants, efficient energy consumption behavior can be presented through energy consumption/saving suggestions on display of smart meters. These suggestions are related to daily life activities like taking bath and shower, cleaning, washing and heating usage. We analyzed that efficient energy consumption behavior recommended by the energy providers can provide financial improvements both for the energy providers and the residential consumers. On the basis of these findings, we proposed Extended Smart Metering Display to present information in simple and interactive way. Furthermore, the proposed Extended Smart Metering Display can also be helpful in measuring consumers’ energy consumption behavior effectively. Conclusions: After obtaining answers of the research questions, we concluded that extension of existing smart heat meters’ display can effectively help the energy providers and the residential consumers to utilize the resources efficiently. That is, it will not only reduce energy bills for the residential consumers, but it will also help the energy provider to save scarce energy and enable them to serve the consumers better in peak hours. After deployment of the proposed Extended Smart Metering Display the energy providers will able to support the consumers’ behavior in a reliable way and the consumers will find/follow the energy consumption/saving guidelines easily.

  • 12.
    Ahmed, Qutub Uddin
    et al.
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för datalogi och datorsystemteknik.
    Mujib, Saifullah Bin
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för datalogi och datorsystemteknik.
    Context Aware Reminder System: Activity Recognition Using Smartphone Accelerometer and Gyroscope Sensors Supporting Context-Based Reminder Systems2014Självständigt arbete på avancerad nivå (masterexamen)Studentuppsats (Examensarbete)
    Abstract [en]

    Context. Reminder system offers flexibility in daily life activities and assists to be independent. The reminder system not only helps reminding daily life activities, but also serves to a great extent for the people who deal with health care issues. For example, a health supervisor who monitors people with different health related problems like people with disabilities or mild dementia. Traditional reminders which are based on a set of defined activities are not enough to address the necessity in a wider context. To make the reminder more flexible, the user’s current activities or contexts are needed to be considered. To recognize user’s current activity, different types of sensors can be used. These sensors are available in Smartphone which can assist in building a more contextual reminder system. Objectives. To make a reminder context based, it is important to identify the context and also user’s activities are needed to be recognized in a particular moment. Keeping this notion in mind, this research aims to understand the relevant context and activities, identify an effective way to recognize user’s three different activities (drinking, walking and jogging) using Smartphone sensors (accelerometer and gyroscope) and propose a model to use the properties of the identification of the activity recognition. Methods. This research combined a survey and interview with an exploratory Smartphone sensor experiment to recognize user’s activity. An online survey was conducted with 29 participants and interviews were held in cooperation with the Karlskrona Municipality. Four elderly people participated in the interview. For the experiment, three different user activity data were collected using Smartphone sensors and analyzed to identify the pattern for different activities. Moreover, a model is proposed to exploit the properties of the activity pattern. The performance of the proposed model was evaluated using machine learning tool, WEKA. Results. Survey and interviews helped to understand the important activities of daily living which can be considered to design the reminder system, how and when it should be used. For instance, most of the participants in the survey are used to using some sort of reminder system, most of them use a Smartphone, and one of the most important tasks they forget is to take their medicine. These findings helped in experiment. However, from the experiment, different patterns have been observed for three different activities. For walking and jogging, the pattern is discrete. On the other hand, for drinking activity, the pattern is complex and sometimes can overlap with other activities or can get noisy. Conclusions. Survey, interviews and the background study provided a set of evidences fostering reminder system based on users’ activity is essential in daily life. A large number of Smartphone users promoted this research to select a Smartphone based on sensors to identify users’ activity which aims to develop an activity based reminder system. The study was to identify the data pattern by applying some simple mathematical calculations in recorded Smartphone sensors (accelerometer and gyroscope) data. The approach evaluated with 99% accuracy in the experimental data. However, the study concluded by proposing a model to use the properties of the identification of the activities and developing a prototype of a reminder system. This study performed preliminary tests on the model, but there is a need for further empirical validation and verification of the model.

  • 13.
    Ahnstedt, Linda
    et al.
    Blekinge Tekniska Högskola, Institutionen för programvaruteknik och datavetenskap.
    Johansson, Susanna
    Blekinge Tekniska Högskola, Institutionen för programvaruteknik och datavetenskap.
    Basmobilen2003Självständigt arbete på grundnivå (kandidatexamen)Studentuppsats (Examensarbete)
    Abstract [sv]

    Today’s cell phones include more and more functionality, it is no longer uncommon to be able to connect to the Internet or take photos with the cell phone. In this thesis the question is if the cell phone users are interested in this new functionality. Are there people who are interested in a cell phone that in this thesis is called “Basmobilen” (the entry level phone), which include the following functions; phone call, SMS, phone book, calling lists, clock and the possibility to change the call signal. After some historical insight in the development of the cell phone there is a description of the entry level phone (basmobilen). The question about what the cell phone users are interested in is answered through a poll, interviews and diaries. The result shows that the entry level phone (basmobilen) is interesting for the persons who answered the poll, but there are some of them who want some additional functionality. This is discussed further in the discussion part of the thesis, where also a suggestion on how cell phones should be built in the future, to fit as large user groups as possible, is made.

  • 14.
    Aho Mathiesen, Hella
    Linköpings universitet, Institutionen för datavetenskap.
    Requirements on HRA?: A review of requirements on HRA from international standards, swedish NPP's and interviews with performers in the field.2011Självständigt arbete på avancerad nivå (masterexamen), 20 poäng / 30 hpStudentuppsats (Examensarbete)
    Abstract [en]

    HRA (Human Reliability Analysis) is a part of PSA (Probabilistic Risk Assessment) to evaluate if and which human actions that could contribute to a core damage in a NPP (Nuclear Power Plant). This thesis investigates requirements that are put on HRA in connection to requirements that are put on the PSA, both from the view of international standard but also through HRA method descriptions and performed analyses from Swedish NPPs as well as through interviews with performers in the field.

    The results shows that the requirements that are put on the HRA from the international standards are generic (few specific requirements are to be found) and can be said to be reflected in the performed analysis on Swedish NPPs. Another result shows that there isn't much difference between different NPP units on how the HRA is performed; the general requirements from the international standards are most often followed in some sense. There is more a questions of level of detail and/or traceability described in the analysis that can be said to be of difference. The results also shows on the fact that it is very hard to transform the more qualitative results from the HRA into a quantitative value that can work as an input to the PSA. Some of the interviewees expressed a sort of resignation that it felt as if the qualitative parts of the HRA weren't seen in the same light as the quantitative parts, and that there is no consensus on how for example factors that influence the work of the operators (such as stress, the quality of instructions, complexity of the task or available time) in a reliable way can be evaluated quantitatively. This is something that further research could be focused on.

  • 15.
    Akhlaq, Muhammad
    Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation.
    A Smart-Dashboard: Augmenting safe & smooth driving2010Självständigt arbete på avancerad nivå (masterexamen)Studentuppsats (Examensarbete)
    Abstract [en]

    Annually, road accidents cause more than 1.2 million deaths, 50 million injuries, and US$ 518 billion of economic cost globally. About 90% of the accidents occur due to human errors such as bad awareness, distraction, drowsiness, low training, fatigue etc. These human errors can be minimized by using advanced driver assistance system (ADAS) which actively monitors the driving environment and alerts a driver to the forthcoming danger, for example adaptive cruise control, blind spot detection, parking assistance, forward collision warning, lane departure warning, driver drowsiness detection, and traffic sign recognition etc. Unfortunately, these systems are provided only with modern luxury cars because they are very expensive due to numerous sensors employed. Therefore, camera-based ADAS are being seen as an alternative because a camera has much lower cost, higher availability, can be used for multiple applications and ability to integrate with other systems. Aiming at developing a camera-based ADAS, we have performed an ethnographic study of drivers in order to find what information about the surroundings could be helpful for drivers to avoid accidents. Our study shows that information on speed, distance, relative position, direction, and size & type of the nearby vehicles & other objects would be useful for drivers, and sufficient for implementing most of the ADAS functions. After considering available technologies such as radar, sonar, lidar, GPS, and video-based analysis, we conclude that video-based analysis is the fittest technology that provides all the essential support required for implementing ADAS functions at very low cost. Finally, we have proposed a Smart-Dashboard system that puts technologies – such as camera, digital image processor, and thin display – into a smart system to offer all advanced driver assistance functions. A basic prototype, demonstrating three functions only, is implemented in order to show that a full-fledged camera-based ADAS can be implemented using MATLAB.

  • 16.
    Akoglu, Canan
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen Designhögskolan.
    The relationship between industrial design and interaction design in product development activities2012Ingår i: Human Factors in Computing Systems (CHI) International Conference, Austin, TX, USA, May 5-10, 2012 (on DVD), Association for Computing Machinery (ACM), 2012Konferensbidrag (Refereegranskat)
  • 17.
    Al Moubayed, Samer
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Bringing the avatar to life: Studies and developments in facial communication for virtual agents and robots2012Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
    Abstract [en]

    The work presented in this thesis comes in pursuit of the ultimate goal of building spoken and embodied human-like interfaces that are able to interact with humans under human terms. Such interfaces need to employ the subtle, rich and multidimensional signals of communicative and social value that complement the stream of words – signals humans typically use when interacting with each other.

    The studies presented in the thesis concern facial signals used in spoken communication, and can be divided into two connected groups. The first is targeted towards exploring and verifying models of facial signals that come in synchrony with speech and its intonation. We refer to this as visual-prosody, and as part of visual-prosody, we take prominence as a case study. We show that the use of prosodically relevant gestures in animated faces results in a more expressive and human-like behaviour. We also show that animated faces supported with these gestures result in more intelligible speech which in turn can be used to aid communication, for example in noisy environments.

    The other group of studies targets facial signals that complement speech. As spoken language is a relatively poor system for the communication of spatial information; since such information is visual in nature. Hence, the use of visual movements of spatial value, such as gaze and head movements, is important for an efficient interaction. The use of such signals is especially important when the interaction between the human and the embodied agent is situated – that is when they share the same physical space, and while this space is taken into account in the interaction.

    We study the perception, the modelling, and the interaction effects of gaze and head pose in regulating situated and multiparty spoken dialogues in two conditions. The first is the typical case where the animated face is displayed on flat surfaces, and the second where they are displayed on a physical three-dimensional model of a face. The results from the studies show that projecting the animated face onto a face-shaped mask results in an accurate perception of the direction of gaze that is generated by the avatar, and hence can allow for the use of these movements in multiparty spoken dialogue.

    Driven by these findings, the Furhat back-projected robot head is developed. Furhat employs state-of-the-art facial animation that is projected on a 3D printout of that face, and a neck to allow for head movements. Although the mask in Furhat is static, the fact that the animated face matches the design of the mask results in a physical face that is perceived to “move”.

    We present studies that show how this technique renders a more intelligible, human-like and expressive face. We further present experiments in which Furhat is used as a tool to investigate properties of facial signals in situated interaction.

    Furhat is built to study, implement, and verify models of situated and multiparty, multimodal Human-Machine spoken dialogue, a study that requires that the face is physically situated in the interaction environment rather than in a two-dimensional screen. It also has received much interest from several communities, and been showcased at several venues, including a robot exhibition at the London Science Museum. We present an evaluation study of Furhat at the exhibition where it interacted with several thousand persons in a multiparty conversation. The analysis of the data from the setup further shows that Furhat can accurately regulate multiparty interaction using gaze and head movements.

  • 18.
    Al Moubayed, Samer
    et al.
    KTH, Skolan för datavetenskap och kommunikation (CSC).
    Beskow, Jonas
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Granström, Björn
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    House, David
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Audio-Visual Prosody: Perception, Detection, and Synthesis of Prominence2010Ingår i: 3rd COST 2102 International Training School on Toward Autonomous, Adaptive, and Context-Aware Multimodal Interfaces: Theoretical and Practical Issues / [ed] Esposito A; Esposito AM; Martone R; Muller VC; Scarpetta G, 2010, Vol. 6456, 55-71 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    In this chapter, we investigate the effects of facial prominence cues, in terms of gestures, when synthesized on animated talking heads. In the first study a speech intelligibility experiment is conducted, where speech quality is acoustically degraded, then the speech is presented to 12 subjects through a lip synchronized talking head carrying head-nods and eyebrow raising gestures. The experiment shows that perceiving visual prominence as gestures, synchronized with the auditory prominence, significantly increases speech intelligibility compared to when these gestures are randomly added to speech. We also present a study examining the perception of the behavior of the talking heads when gestures are added at pitch movements. Using eye-gaze tracking technology and questionnaires for 10 moderately hearing impaired subjects, the results of the gaze data show that users look at the face in a similar fashion to when they look at a natural face when gestures are coupled with pitch movements opposed to when the face carries no gestures. From the questionnaires, the results also show that these gestures significantly increase the naturalness and helpfulness of the talking head.

  • 19.
    Al Moubayed, Samer
    et al.
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Beskow, Jonas
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Skantze, Gabriel
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Granström, Björn
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Furhat: A Back-projected Human-like Robot Head for Multiparty Human-Machine Interaction2012Ingår i: Cognitive Behavioural Systems: COST 2102 International Training School, Dresden, Germany, February 21-26, 2011, Revised Selected Papers / [ed] Anna Esposito, Antonietta M. Esposito, Alessandro Vinciarelli, Rüdiger Hoffmann, Vincent C. Müller, Springer Berlin/Heidelberg, 2012, 114-130 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    In this chapter, we first present a summary of findings from two previous studies on the limitations of using flat displays with embodied conversational agents (ECAs) in the contexts of face-to-face human-agent interaction. We then motivate the need for a three dimensional display of faces to guarantee accurate delivery of gaze and directional movements and present Furhat, a novel, simple, highly effective, and human-like back-projected robot head that utilizes computer animation to deliver facial movements, and is equipped with a pan-tilt neck. After presenting a detailed summary on why and how Furhat was built, we discuss the advantages of using optically projected animated agents for interaction. We discuss using such agents in terms of situatedness, environment, context awareness, and social, human-like face-to-face interaction with robots where subtle nonverbal and social facial signals can be communicated. At the end of the chapter, we present a recent application of Furhat as a multimodal multiparty interaction system that was presented at the London Science Museum as part of a robot festival,. We conclude the paper by discussing future developments, applications and opportunities of this technology.

  • 20.
    Al Moubayed, Samer
    et al.
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH.
    Heylen, D.
    Bohus, D.
    Koutsombogera, Maria
    Papageorgiou, H.
    Esposito, A.
    Skantze, Gabriel
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH.
    UM3I 2014: International workshop on understanding and modeling multiparty, multimodal interactions2014Ingår i: ICMI 2014 - Proceedings of the 2014 International Conference on Multimodal Interaction, Association for Computing Machinery (ACM), 2014, 537-538 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    In this paper, we present a brief summary of the international workshop on Modeling Multiparty, Multimodal Interactions. The UM3I 2014 workshop is held in conjunction with the ICMI 2014 conference. The workshop will highlight recent developments and adopted methodologies in the analysis and modeling of multiparty and multimodal interactions, the design and implementation principles of related human-machine interfaces, as well as the identification of potential limitations and ways of overcoming them.

  • 21.
    Al Moubayed, Samer
    et al.
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Skantze, Gabriel
    KTH, Skolan för datavetenskap och kommunikation (CSC), Tal, musik och hörsel, TMH, Tal-kommunikation.
    Perception of Gaze Direction for Situated Interaction2012Ingår i: Proceedings of the 4th Workshop on Eye Gaze in Intelligent Human Machine Interaction, Gaze-In 2012, ACM , 2012Konferensbidrag (Refereegranskat)
    Abstract [en]

    Accurate human perception of robots' gaze direction is crucial for the design of a natural and fluent situated multimodal face-to-face interaction between humans and machines. In this paper, we present an experiment targeted at quantifying the effects of different gaze cues synthesized using the Furhat back-projected robot head, on the accuracy of perceived spatial direction of gaze by humans using 18 test subjects. The study first quantifies the accuracy of the perceived gaze direction in a human-human setup, and compares that to the use of synthesized gaze movements in different conditions: viewing the robot eyes frontal or at a 45 degrees angle side view. We also study the effect of 3D gaze by controlling both eyes to indicate the depth of the focal point (vergence), the use of gaze or head pose, and the use of static or dynamic eyelids. The findings of the study are highly relevant to the design and control of robots and animated agents in situated face-to-face interaction.

  • 22.
    Alam, Zahidul
    Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation.
    Usability of a GNU/Linux Distribution from Novice User’s Perspective2009Självständigt arbete på avancerad nivå (masterexamen)Studentuppsats (Examensarbete)
    Abstract [en]

    The term Open Source Software (OSS) has been around for a long time in the world of computer science. Open source software development is a process by which we can manufacture economical and qualitative software and its source could be re-use in the improvement of the software. The success of OSS relies on several factors, e.g. usability, functionality, market focus etc. But in the end how popular the software will be measured by the number of users downloading the software and how much the software is usable to the users. Open Source Software achieve the status for stability, security and functionality. Most of this software has been utilized by expert level users of IT. But from the general users or the non-computer user’s point of view the usability issues of Open source software has been faced the most criticism [25, 26, 27, 28, 29, and 30]. This factor i.e. the usability issues of general user is also responsible for the limited distribution of the open source software [24]. The development process should apply the “user-centered” methodology [25, 26, 27, 28, 29, and 30]. In this thesis paper the issues of usability in OSS development and how the usability of open source software can be improved will be discussed. Beside this I investigate the usability quality of free Open Source Linux-based operating system Ubuntu and try to find out the usability standards of this OSS.

  • 23.
    Alaqra, Alaa
    et al.
    Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap.
    Fischer-Hübner, Simone
    Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap.
    Pettersson, John
    Karlstads universitet, Fakulteten för humaniora och samhällsvetenskap (from 2013), Centrum för HumanIT.
    Wästlund, Erik
    Karlstads universitet, Fakulteten för humaniora och samhällsvetenskap (from 2013), Centrum för tjänsteforskning.
    Stakeholders’ Perspectives on Malleable Signatures in a Cloud-based eHealth Scenario2016Ingår i: Proceedings of the International Symposium on Human Aspects of Information Security & Assurance, 2016Konferensbidrag (Refereegranskat)
    Abstract [en]

    In this paper, we discuss end user requirements that we elicited for the use of malleable signatures in a Cloud-based eHealth scenario. The concept of a malleable signature, which is a privacy enhancing cryptographic scheme that enables the redaction of personal information from signed documents while preserving the validity of the signature, might be counter- intuitive to end users as its functionality does not correspond to the one of a traditional signature scheme. A qualitative study via a series of semi-structured interviews and focus groups has been conducted to understand stakeholders’ opinions and concerns in regards to the possible applications of malleable signatures in the eHealth area, where a medical record is first digitally signed by a doctor and later redacted by the patient in the cloud. Results from this study yielded user requirements such as the need for suitable metaphors and guidelines, usable templates, and clear redaction policies. 

  • 24. Alenljung, Beatrice
    et al.
    Lindblom, Jessica
    Andreasson, Rebecca
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Avdelningen för visuell information och interaktion. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Bildanalys och människa-datorinteraktion.
    Ziemke, Tom
    User experience in social human–robot interaction2017Ingår i: International Journal of Ambient Computing and Intelligence (IJACI), ISSN 1941-6237, E-ISSN 1941-6245, Vol. 8, nr 2, 12-31 s.Artikel i tidskrift (Refereegranskat)
  • 25.
    Alesö, Rikard
    et al.
    Blekinge Tekniska Högskola, Sektionen för planering och mediedesign.
    Widén, Fredrika
    Blekinge Tekniska Högskola, Sektionen för planering och mediedesign.
    Simone de Beauvoirs feminism: De digitala spelen idag2013Självständigt arbete på grundnivå (kandidatexamen)Studentuppsats (Examensarbete)
    Abstract [sv]

    Detta kandidatarbete utgår ifrån två stycken frågeställningar kopplade till feminism: ”Hur kan Simone de Beauvoirs feminism gestaltas i digitala spel?” och ”Vad finns det för typiska könsroller i dagens digitala spel?”. För att svara på dess frågeställningar studerade vi de Beauvoirs bok ”Det Andra Könet”, utförde spelanalyser samt delade ut skriftliga intervjuer till spelare. Resultaten blev en prototyp till ett digitalt spel vars handling är en direkt inspiration ifrån utvalda kapitel från Simone De Beauvoirs bok ”Det Andra Könet”. Vi avser att detta spel kan bli ett exempel för framtida speldesigners hur man kan utveckla spel på ett alternativt sätt och även att digitala spel kan bli ett nytt medium för filosofer att bruka.

  • 26. Alexanderson, Petter
    et al.
    Tollmar, Konrad
    Department of Informatics, HCID Group.
    Being and mixing: designing interactive soundscapes2006Ingår i: Proceedings of the 4th Nordic conference on Human-computer interaction: changing roles, 2006, 252-261 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    This paper describes a study of the auditory environment in a chemical factory, and how a group of process operators ascribe meaning to a selection of sound clips from their daily work environment. We argue for a design-oriented phenomenological approach to soundscape studies, and suggest an approach based on an exploration of how already occurring sounds are used. This knowledge will be used to inform the design of new useful auditory environments. Our study shows that the richness of the auditory environment is a crucial aspect of the distributed work environment. An important part of the design process is the operator’s contribution to the concepts suggested. From design workshops several design concepts aiming to explore and test different approaches for making sound affordances available have been developed. This has led us to a new understanding of how interactive soundscapes enable distributed awareness – what we refer to as ’Being and Mixing’.

  • 27.
    Ali, Muhammad Usman
    et al.
    Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation.
    Aasim, Muhammad
    Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation.
    Usability Evaluation of Digital Library BTH a case study2009Självständigt arbete på avancerad nivå (masterexamen)Studentuppsats (Examensarbete)
    Abstract [en]

    Libraries have for hundreds of years been an important entity for every kind of institute, especially in the educational sector. So now it is an age of computers and internet. People are now using electronic resources to fulfill their needs and requirements of their life. Therefore libraries have also converted to computerized systems. People can access and use library resources just sitting at their computers by using the internet. This modern way of running a library has been called or given the name of digital libraries. Digital libraries are getting famous for flexibility of use and because more users can be facilitated at a time. As numbers of users are increasing, some issues relevant to interaction also arise while using digital libraries interface and utilizing its e-resources. In this thesis we evaluate usability factors and issues in digital libraries and the authors have taken as a case study the real time existing system of the digital library in BTH. This thesis report describes digital libraries and how users are being facilitated by them. Usability issues are also discussed relevant to digital libraries. Users have been the main source to evaluate and judge usability issues while interacting and using this digital library. The results obtained showed dis¬satisfaction of users regarding the usability evaluation of BTH:s digital library. The authors used usability evaluation techniques to evaluate functionality and services provided by the BTH digital library system interface. Moreover, based on the results of our case study, suggestions of improvement in BTH:s digital library are presented. Hopefully, these suggestions will help to make BTH digital library system more usable in an efficient and effective manner for users.

  • 28.
    ALI, SHUJAT
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Samhällsvetenskapliga fakulteten, Institutionen för informatik och media.
    DESIGN AN INTERFACE PROTOTYPE FOR ELSKIFT.DK: DESIGN A WEBSITE USING ITERATIVE DESIGN PROCESS2011Självständigt arbete på avancerad nivå (masterexamen), 20 poäng / 30 hpStudentuppsats (Examensarbete)
    Abstract [en]

     

    Now a day the revolution in computer technology has changed the trend of human life. Congenital methods are a being replaced by new technique. The purpose of this study was to make an interface design prototype of Elskift company website. Another aim was to find out  the  prototype  should  concentrate  on  usability  and  user  interface design  heuristic.  Main  goals  were  that  the  prototype  was  easy  to learn,  efficient  of  use  and  subjective  satisfaction.  Both Quantitative and Qualitative approaches were used in this study.  Interviews were performed with the management and developer of Elskift. Survey was conducted to collect data from the participant.  Iterative  design  was used  in  this  design  process  its  include  evaluation,  design  and prototype. Usability testing was performed in the final design option. The Elskift design prototype is not an abundant and the complete web-based prototype but it contain maximum attribute

  • 29.
    Allmér, Caroline
    Linköpings universitet, Institutionen för datavetenskap. Linköpings universitet, Filosofiska fakulteten.
    Utvärdering av en interaktiv brand- och räddningsinstruktion genom tematisk analys baserad på användarintervjuer och heuristisk utvärdering2013Självständigt arbete på grundnivå (kandidatexamen), 12 poäng / 18 hpStudentuppsats (Examensarbete)
    Abstract [sv]

    Syftet med rapporten är att utvärdera en interaktiv brand- och räddningsinstruktion som framförallt används inom försvarsmakten. Utvärderingen gick ut på att ta reda på hur användarna använder instruktionen och hur de vill att den ska utvecklas i framtiden för att möta deras behov. Utvärderingen genomfördes genom intervjuer med sju användare från olika delar av landet samt en heuristisk utvärdering utifrån Nielsens tio användbarhetsprinciper och med hänsyn till Sweller och Chandlers ”cognitive load theory”. Resultatet visade att instruktionen framförallt används som uppslagsbok och att användarna vill se en utveckling av instruktionen där den blir större och omfattar mer information, till exempel om haverier och utländska luftfartyg och att text och illustrationer i instruktionen är uppdaterad och korrekt. Utifrån analysen togs flertalet utvecklingsförslag fram och presenteras i slutet av rapporten.

  • 30. Allwood, Jens
    et al.
    Jensen, MikaelHögskolan i Borås, Institutionen för Pedagogik.
    Kognitionsvetenskap2012Samlingsverk (redaktörskap) (Övrigt vetenskapligt)
  • 31.
    Alm, Elenore
    Högskolan i Skövde, Institutionen för datavetenskap.
    Motivationens påverkan på inlärningen1997Självständigt arbete på grundnivå (kandidatexamen)Studentuppsats
    Abstract [sv]

    Detta arbete är en studie av hur motivation påverkar individens inlärning. Lär vi oss bättre om vi är motiverade? Kan man motiveras under en utbildning och nå lika goda resultat som om man hade varit motiverad vid utbildningens början? Detta är några av de frågor som jag ställt mig inför min undersökning om motivationens påverkan på inlärningen.

    Undersökningen av problemet har skett med en kvalitativ intervju med bestämda frågor. I denna undersökning har jag utgått från de faktorer som påverkar motivation - vilja, delaktighet, tilltro, självförtroende, information och kunskap samt trygghet. Med dessa faktorer som utgångspunkt har jag ställt frågor för att reda ut hur stor betydelse individens motivation har för det han/hon lär sig.

    Resultatet av min undersökning visar att motivationen har betydelse för vår inlärning. Framförallt är viljan att lära sig mycket viktig. Mitt undersökningsresultat visar också att man kan motiveras under pågående utbildning. En individ som är motiverad i det initiala skedet av utbildningen lär sig bättre, men en individ som motiveras under utbildningen kan uppnå nästan lika goda slutresultat.

  • 32.
    Alm, Helen
    Linköpings universitet, Institutionen för datavetenskap.
    Duk i buk: Functional Resonance Accident Model i en vårdrelaterad kontext2008Självständigt arbete på avancerad nivå (magisterexamen), 20 poäng / 30 hpStudentuppsats
    Abstract [sv]

    Ett stort antal människor dör på grund av skador som de fått inom vården och som hade kunnat förebyggas. Det finns siffror som pekar på att dessa vårdskador överskrider antalet döda i trafiken. Vid Östergötlands landsting finns sedan år 2005 en fast enhet som arbetar med patientsäkerhet. En av deras uppgifter är att, tillsammans med berörd verksamhet, utföra händelseanalyser inför anmälningar av Lex Maria-fall. Den analysmetod som används av patientsäkerhetsenheten är uppbyggd på en epidemiologisk olycksmodell.

    Syftet med denna studie har varit att använda analysmetoden FRAM (Functional Resonance Accident Model), som är en systemisk analysmetod utarbetad av Erik Hollnagel, i en vårdrelaterad kontext, någonting som inte har gjorts tidigare. FRAM har applicerats på en händelse under en operation då material glömdes kvar i patientens buk. Samtidigt har patientsäkerhetsenheten analyserat samma händelse med sin metod. En jämförelse mellan de två olika analysmetodernas slutsatser har gjorts.

    För insamling av information om arbetet i operationssal har en triangulering av observation, intervjuer med sakkunniga och genomgång av viss dokumentation genomförts. De personer som varit inblandade i den aktuella händelsen har intervjuats av patientsäkerhetsenhetens analysteam. När de båda analyserna var genomförda ordnades en fokusgrupp med diskussion kring analysmetoder.

    Studien har visat att FRAM kan vara lämplig för tillämpning på vårdskador. Det finns fördelar med en systemisk analysmetod som FRAM då den i större utsträckning speglar den omfattande komplexitet som, i detta fall, en operationssal och dess omgivning består av. Detta medför dock att analysprocessen blir mer omfattande och krävande. I dagsläget används landstingets analysmetod av ett stort antal människor efter en relativt kort utbildning, vilket skulle vara svårt att genomföra med FRAM. Det är även tydligt att mer forskning behövs då FRAM är en relativt ny analysmetod under utveckling.

  • 33.
    Almgren, Anton
    et al.
    Umeå universitet, Samhällsvetenskapliga fakulteten, Institutionen för psykologi.
    Winbäck, Hannes
    Umeå universitet, Samhällsvetenskapliga fakulteten, Institutionen för psykologi.
    Användbarhet inom människa-datorinteraktion i praktiken: En kartläggning av utvärderingsmetoder2015Självständigt arbete på grundnivå (kandidatexamen), 10 poäng / 15 hpStudentuppsats (Examensarbete)
    Abstract [sv]

    Studiens syfte är att kartlägga yrkesverksammas preferenser och användning av utvärderingsmetoder för användbarhet inom människa-datorinteraktion. En webbenkät distribuerades via epost till företag med minst en anställd som arbetar med användbarhet samt via sociala medier genom intresseorganisationen STIMDI och företaget Inuse. Totalt erhölls 104 svarande varav en räknades som bortfall då den ansågs vara en dubblett. Resultaten visar att ingen enskild eller kombination av metoder används oftast och rankas ge högst effekt på användbarhet. Angående vilka utvärderingsmetoder som används är intervju och tänka högt med användare de två metoder som nämns av flest deltagare. Resultaten visar även att nästan 80 % skattar användning av utvärderingsmetoder och involvering av användare i deras arbete som mycket viktigt. En tydlig preferens för att involvera användare och arbeta med kombinationer av metoder framgår i denna kartläggning. Forskning bör möjligtvis fokusera mer på hur användandet av utvärderingsmetoder sker i kombination. 

  • 34.
    Almgren, Kristian
    Linköpings universitet, Institutionen för datavetenskap. Linköpings universitet, Filosofiska fakulteten.
    Dubbeldokumentation i patientjournalen: varför sker det?2013Självständigt arbete på grundnivå (kandidatexamen), 12 poäng / 18 hpStudentuppsats (Examensarbete)
    Abstract [sv]

    Landstinget i Östergötland har problem med ständigt växande informationsmängder i patienters journaler. Anledningen till att detta är ett problem är att journalen blir svår att överblicka vilket gör det svårt för exempelvis läkare och sjuksköterskor att snabbt hitta relevant information och skaffa sig en uppfattning om patientens sjukdomshistoria vid exempelvis patientmottagning. Informationsöverflödet gör patientjournalen ostrukturerad och därmed svår att söka i. Det tar lång tid att hitta specifika data som eftersöks vilket kan leda till frustration och irritation i den redan tidsmässigt pressade arbetsdagen. Enligt tidigare studie är dubbeldokumentation i patientjournalen en stor bidragande faktor till detta problem. Syftet med denna studie är att undersöka varför problemet uppstår, dvs. orsaken till dubbeldokumentation.

    Både observation och intervju har använts som datainsamlingsmetod. Data har sedan analyserats med tematisk analys.

    Studien resulterade i sex olika teman; The Efficiency-Thoroughness Trade-Off Principle (ETTO), Strategier, Uppdatering och Bekräftelse, Dubbeldokumentation, Störningar, Artefakter.

  • 35.
    Alnebo, Carl
    et al.
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Samhällsvetenskapliga fakulteten, Institutionen för informatik och media, Informationssystem.
    Svensson, Christoffer
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Samhällsvetenskapliga fakulteten, Institutionen för informatik och media, Informationssystem.
    Beyond the hype: A study of non-user perspectives2017Självständigt arbete på grundnivå (kandidatexamen), 10 poäng / 15 hpStudentuppsats (Examensarbete)
    Abstract [en]

    Today's rapid technological development in relation with social networks create efficient information flows in everyday life. It creates conditions for so-called "hypes" that are described as an exponentially growing trend of testing a new product. What factors lies behind a hype and how does it affect people that choose to refrain from new technology?

     

    The purpose of this paper is to study the so called non-users, with a case study that concerns the Pokémon GO game and its hype in the summer of 2016. This case study has the intention to highlight the positive and negative aspects of non-users and other thoughts about hype. The study also intends to investigate what the non-users can contribute in technological development and if it's possible to distinguish between users and non-users in today's society.

     

    The case study has been carried out on the basis of two group interviews; a group that abstained from playing and a group that played Pokémon GO during the hype. A number of issues are discussed and linked against a theoretical framework which also has been used in the analysis in this paper. Based on the results of the case study it appears that nostalgia was a major factor in the hype, many had prior knowledge of the concept and was triggered by it. Nostalgia was also a factor that lead people to refrain from the hype. The game did not meet up to everyone’s expectations regarding the functionality which existed earlier in Pokémon but not now.  It also emerged that the social environment affects both users and non-users in several ways. The investigation of the case study showed that non-users often had to wait for players due to different reasons. This could be while on walks with the player or that users could completely block roads. To be able completely separating non-users and users is complex as the real world is used as the platform of the game. Both previous studies and this paper demonstrates how important it can be to understand non-users. They have the opportunity to present an overall perspective of a product that users might condone. In summary, the future will become more complex in the area, especially with new technologies that make the real world a game field.

  • 36.
    Alpay, Aylin
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Designhögskolan vid Umeå universitet.
    Untangling Road Trip Experiences with Conected Car: Planning and bringing it to the car2017Självständigt arbete på avancerad nivå (masterexamen), 20 poäng / 30 hpStudentuppsats (Examensarbete)
    Abstract [en]

    With developing technologies and growing infrastructures, connected experiences are expanding their realms towards various devices and scenarios in our lives. One of the areas, which is going under a big change due to this connectivity is the car related experiences. As connectivity is intrinsically enabler of different experiences and services, it is foreseen that it will bring a different dimension to car and driving related experiences as well.By investigating the future trends and possibilities that connectivity can provide to car and driving related experiences, this thesis aims for imagining the near future scenarios with an explorative approach, focusing on one and addressing to the rising issues with a design proposal that is meaningful to both users and the industry.The result, Tripcloud, contributes to the future scenario of having a road trip with the car, with a new digital platform that aims for supporting the users throughout the planning and bringing the plans into the car experience seamlessly and safely. It aims for reducing today’s existing complexity in terms of interaction and cognition to provide a better experience and avoid driver distraction. With providing organised information pieces, information exchange between people and automated links with mobile devices and car, Tripcloud offers easier an more convenient alternative for road trip planing and bringing the plans into car experiences for the near future.

  • 37.
    Amdahl, Per
    et al.
    Linköpings universitet, Institutionen för datavetenskap.
    Chaikiat, Per
    Linköpings universitet, Institutionen för datavetenskap.
    Personas as Drivers: - an alternative approach for creating scenarios for ADAS evaluation2007Självständigt arbete på avancerad nivå (magisterexamen), 20 poäng / 30 hpStudentuppsats
    Abstract [en]

    Research and development on vehicle safety has lately started to direct its focus towards how to actively support the driver and make it easier for her to drive safely through letting Advanced Driver Assistance Systems (ADAS) have effect on how the driver interacts with the vehicle and the surrounding traffic. This requires research on both how the driver and vehicle perform in different situations, in terms of psychology, cognition and individual differences. In addition, physical limitations and requirements of the driver and the vehicle must be taken into account. Therefore scenarios for evaluation of these systems are required. In the area of user-centered design a rather new method, Personas, is being adopted. This thesis tries to explore if the Persona method is a viable tool for creating scenarios for such evaluations. Experiences after completing this work imply that personas indeed is a viable way to include aspects and raise issues concerning individual variability and situational context in ADAS scenarios.

  • 38.
    Ameri Ekhtiarabadi, Afshin
    Mälardalens högskola, Akademin för innovation, design och teknik.
    Unified Incremental Multimodal Interface for Human-Robot Interaction2011Självständigt arbete på avancerad nivå (masterexamen), 20 poäng / 30 hpStudentuppsats (Examensarbete)
    Abstract [en]

    Face-to-face human communication is a multimodal and incremental process. Humans employ  different information channels (modalities) for their communication. Since some of these modalities are more error-prone to specic type of data, a multimodal communication can benefit from strengths of each modality and therefore reduce ambiguities during the interaction. Such interfaces can be applied to intelligent robots who operate in close relation with humans. With this approach, robots can communicate with their human colleagues in the same way they communicate with each other, thus leading to an easier and more robust human-robot interaction (HRI).In this work we suggest a new method for implementing multimodal interfaces in HRI domain and present the method employed on an industrial robot. We show that operating the system is made easier by using this interface.

  • 39.
    Amini, Zenver
    et al.
    Högskolan i Jönköping, Tekniska Högskolan.
    Ruya, Nurcan
    Högskolan i Jönköping, Tekniska Högskolan.
    Studie utav ett larmsystem ur ett signalteoretiskt perspektiv: Study of a detector by a signal detection theory2006Självständigt arbete på grundnivå (kandidatexamen), 10 poäng / 15 hpStudentuppsats
    Abstract [en]

    In present-day situation many libraries use detectors so that they can be able to prevent attempts too take out books without registering them. The university library in Jonkoping is one of the libraries that have such a detector. But unfortunately it doesn’t always work correct and can also react on other things a part from books. This is a big problem since the library staff don’t have time to check all signals that comes from detector. This paper will focus to help the university library in Jonkoping to identify the causes of the false alarms.

    This paper have the purpose to help library staff to decrease the false alarms so they can be able to get more time over to examine the essential signals from the detector. To be able to identify the causes of the false alarms two experiments was implemented. 180 persons participated, they were divided into three subgroups. In the other experiment 400 persons participated, of whom 200 was female and 200 male. Astonishing to see was that the outcome of the experiments showed that the cause of the false alarms wasn’t the detector, instead the results showed that it was two other factors that affected the detector. One factor was the books that were send from other libraries in Sweden, they hadn’t been unimagnetised and the other reason was the self-service machine.

    In the conclusion and discussion two simple recommendations have been given to help the personnel:

    • To inform all other libraries that send books about the problems that the university library in Jonkoping has with books that aren’t unimagnetised. In this way they will be more careful before they send away the books.

    • To write a note with information about the self-service machine so that the students learn how to use this service.

    These simple recommendations will help the library to decrease the false alarm.

  • 40.
    Aminoff, Hedvig
    Linköpings universitet, Institutionen för datavetenskap.
    Coordination in Emergency Management from a Joint Cognitive Systems Perspective2007Självständigt arbete på avancerad nivå (magisterexamen), 20 poäng / 30 hpStudentuppsats (Examensarbete)
    Abstract [en]

    Emergency management (EM) can benefit from new information and communication technology (ICT). However, the complexity of the field poses high demands upon prospective system developers. The design of technological support in a field where roles and actions are entwined and never completely predetermined, requires an understanding of interactions in the socio-technical system as a whole.

    In this thesis, an attempt is made to work from a Cognitive Systems Engineering stance to identify important characteristics of coordination in intermunicipal EM. Applying perspectives from distributed cognition, joint activity and common ground, Hollnagel’s COCOM and ECOM models have been applied to identify points of entry into work practices. Working with data from a simulated forest-fire in a role-playing exercise, an analysis of dialogues uncovered ambiguity in how functions are handled in a large event, indicating vulnerabilities in face of larger crises. In addition, it became evident that functions moved across roles during the evolving event, and it was possible to uncover recognizable phases of a response. The results underline characteristics that should be supported by future ICT, and occurrences that can be explored in future studies.

  • 41.
    Amundin, Mats
    et al.
    Kolmården Wildlife Park.
    Hållsten, Henrik
    Filosofiska institutionen, Stockholms universitet.
    Eklund, Robert
    Linköpings universitet, Institutionen för kultur och kommunikation, Avdelningen för språk och kultur. Linköpings universitet, Filosofiska fakulteten.
    Karlgren, Jussi
    Kungliga Tekniska Högskolan.
    Molinder, Lars
    Carnegie Investment Bank, Swedden.
    A proposal to use distributional models to analyse dolphin vocalisation2017Ingår i: Proceedings of the 1st International Workshop on Vocal Interactivity in-and-between Humans, Animals and Robots, VIHAR 2017 / [ed] Angela Dassow, Ricard Marxer & Roger K. Moore, 2017, 31-32 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    This paper gives a brief introduction to the starting points of an experimental project to study dolphin communicative behaviour using distributional semantics, with methods implemented for the large scale study of human language.

  • 42.
    Anderdahl, Johan
    et al.
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för kreativa teknologier.
    Darner, Alice
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för kreativa teknologier.
    Particle Systems Using 3D Vector Fields with OpenGL Compute Shaders2014Självständigt arbete på grundnivå (kandidatexamen)Studentuppsats (Examensarbete)
    Abstract [en]

    Context. Particle systems and particle effects are used to simulate a realistic and appealing atmosphere in many virtual environments. However, they do occupy a significant amount of computational resources. The demand for more advanced graphics increases by each generation, likewise does particle systems need to become increasingly more detailed. Objectives. This thesis proposes a texture-based 3D vector field particle system, computed on the Graphics Processing Unit, and compares it to an equation-based particle system. Methods. Several tests were conducted comparing different situations and parameters for the methods. All of the tests measured the computational time needed to execute the different methods. Results. We show that the texture-based method was effective in very specific situations where it was expected to outperform the equation-based. Otherwise, the equation-based particle system is still the most efficient. Conclusions. Generally the equation-based method is preferred, except for in very specific cases. The texture-based is most efficient to use for static particle systems and when a huge number of forces is applied to a particle system. Texture-based vector fields is hardly useful otherwise.

  • 43.
    Andersen, Kristina
    KTH, Skolan för datavetenskap och kommunikation (CSC), Medieteknik och interaktionsdesign, MID.
    Making Magic Machines2017Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
    Abstract [sv]

    Hur kan vi iscensätta upplevelser som tillåter oss att utforska och skapa idéer för det som vi ännu inte vet något om? Genom att engagera deltagare i korta, intensiva, workshop-liknande upplevelser har jag lyckats få dem att öppna sig, uttrycka personliga drivkrafter och önskemål, vilket i sin tur gör det möjligt för dem att skapa helt nya designkoncept. Mitt bidrag är en ny materiell praktik där skapande-processen görs öppen och därmed låter deltagarna fantisera fram helt nya möjliga saker. Praktiken är grundad i deltagarnas djupt kända personliga drivkrafter och önskemål, men vi ber dem uttrycka dem i prosaiska fysiska material - såsom godis eller kartong - där motsatsförhållandet mellan dessa båda leder till att olika synsätt kan komma till ytan och ställas mot varandra: det möjliga, det okända, det fruktade och det önskade. Praktiken öppnar för att ge ett brett spektrum av kunskap fysisk form - och då vi gör det på ett icke-normativt sätt, där vi undviker att begränsas av kommersiella eller tekniska förutsättningar, skapar vi en grund för att få fram idéer bortom de självklara - idéer som egentligen inte tillhör någon av oss och samtidigt alla. Formatet har utvecklats över en lång tidsrymd, från workshops där vi skapade prototyper i tekniska material, till den form de har idag som fokuserar på att uttrycka idéer om teknik snarare än i teknik.

  • 44. Andersen, Kristina
    Making Magic Machines2013Ingår i: 10th European Academy of Design Conference  - Crafting the Future, Gothenburg, Sweden, 17 – 19 April 2013: Crafting the Future, 2013Konferensbidrag (Refereegranskat)
    Abstract [en]

    It is becoming increasingly common to include design methodology into innovation processes, but this is still mostly done to problem-solve or user-test technologies that are already at a late stage of innovation. This paper describes an attempt to use a fine art sculptural process to access unspoken desires and fears of the new and unknown: an exploratory children's workshops aimed at uncovering new technological objects and needs using craft and embodied making. The workshop uses the notion of magic and machine as substitute for technology to allow a broader range of response. We ask questions like: How do we design magic? What is magical to you? If you could make anything at all, what would it be? The responses are low-fi objects built from paper, cardboard, wood, string and plastic. These objects are in turn treated as props in a process of enacting a future scenario-of-use. The paper describes the process itself as well as a small selection of the resulting objects and suggests some tentative guidelines for using this type of workshop format.

  • 45. Andersen, Kristina
    The deliberate cargo cult2014Ingår i: Proceedings of the 2014 conference on Designing interactive systems (DIS '14), New York, USA: ACM Press, 2014, 627-636 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    Taking it’s origin from the notion of the cargo cult as anelaborate misunderstanding, this paper suggests a series ofexploratory design methods to support users in generatingrequirements and scenarios-of-use for technological objectsthat do not yet exist. Strategies from fields such as art andperformance are used to create experiences of userinvolvementcentered on the making of non-functionalmock-ups. These can then act as props through which theparticipant can express their intuitions and concerns with agiven technological notion. The processes described makesuse of a broad range of cultural drivers to engage users inplayful misunderstandings that facilitate new, out of theordinary, interpretations of objects. The paper outlines thebasis of three projects, discusses the drivers behind eachproject and suggests guidelines for creating these kinds ofexploratory embodied experiences.

  • 46. Andersen, Kristina
    et al.
    Gibson, Dan
    The Instrument as the Source of New in New Music2017Ingår i: Design Issues, ISSN 0747-9360, E-ISSN 1531-4790, Vol. 33, nr 3, 37-55 s.Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    How can we treat technological matter as yet another material from which our notions of possible future instruments can be constructed, intrinsically intertwined with, and informed by a practice of performance? We strive to develop musical-performance instruments not only by creating technology, but also in developing them as aesthetic and cultural objects. A musical instrument is not an interface and should not be designed as such; instead, new instruments are the source of new in new music. Like any traditional instrument, a new instrument's potential for producing quality musical sound can only be revealed when it is played. We present an instrument-design process conducted by a visionary and an agenda-setting musician. The resulting objects are experimental prototypes of technological matter, which allow analysis and meaning to be specified through physical and tactile interaction with the objects themselves. As the instruments evolve through various stages, their capability is continually enhanced, making them all the more desirable for musicians to play.

    Publikationen är tillgänglig i fulltext från 2018-01-05 08:20
  • 47. Andersen, Kristina
    et al.
    Knees, Peter
    Johannes Kepler University.
    The Dial: Exploring Computational Strangeness2016Ingår i: Proceedings of the 2016 CHI Conference Extended Abstracts on Human Factors in Computing Systems (CHI EA '16), New York, USA: ACM Press, 2016Konferensbidrag (Refereegranskat)
    Abstract [en]

    This paper describes the process of a computational ideaemerging from a process of user engagement: algorithmicrecommendations as artistic obstructions in creativework. Through a collaboration between HCI and Music InformationRetrieval, we conducted open-ended interviewswith professional makers of Electronic Dance Music. Wedescribe how the idea emerged from this process, and considerhow algorithmic recommendation systems could bere-considered as tools for artistic inspiration. We proposethe concept of a “Strangeness Dial,” which allows the gradualadjustment of the degree of desired otherness, which istested through the use of a non-functional prop and a seriesof interviews.

  • 48.
    Andersson, Adam
    et al.
    Blekinge Tekniska Högskola, Sektionen för teknik, Avdelningen för programvarusystem.
    Watti, Alan
    Blekinge Tekniska Högskola, Sektionen för teknik, Avdelningen för programvarusystem.
    Cupsystemet: En kvalitativ fallstudie av en mobil webbtjänst2004Självständigt arbete på grundnivå (kandidatexamen)Studentuppsats (Examensarbete)
    Abstract [sv]

    The thesis describes the following main question: Will the administrative labour during football tournaments be made easier with the help from a mobile web service or will it convey to unnecessary extra work? To be able to give a good and qualified answer to this question, the thesis will in the beginning describe how the technique for such a system might look like and also describe the existing administrative moments during a football tournament, this is too give the reader a deeper understanding for further reading. The thesis then goes on to describe a concrete system which is tested on three football tournaments. On the basis of the tests, interviews and through analysis of these the thesis will be able to answer our questions. The result which we present in the thesis have unfolded through testing of the system on three chosen football tournaments. The differences in way of labour pre and post the system have been analyzed and through interviews the value of these changes have been assessed. The results achieved in the thesis are as follows, the presented mobile web service does not only decrease the total work effort made by the tournament officials it also speeds up their work. With that information emerged we can conclude that the administrative work which occurs during a football tournament is made easier and it does not lead to any unnecessary extra work.

  • 49.
    Andersson, Arne W.
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Avdelningen för visuell information och interaktion. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Bildanalys och människa-datorinteraktion.
    Jansson, Anders
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Avdelningen för visuell information och interaktion. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Bildanalys och människa-datorinteraktion.
    Sandblad, Bengt
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Avdelningen för visuell information och interaktion. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Bildanalys och människa-datorinteraktion.
    Tschirner, Simon
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Avdelningen för visuell information och interaktion. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Bildanalys och människa-datorinteraktion.
    Recognizing complexity: Visualization for skilled professionals in complex work situations2013Ingår i: Building Bridges: HCI, Visualization, and Cognitive Ergonomics, Springer Berlin/Heidelberg, 2013Konferensbidrag (Refereegranskat)
  • 50.
    Andersson, Ellen
    Linköpings universitet, Institutionen för datavetenskap.
    Cognitive Workload, Game Experience, and Intrinsic Motivation2017Självständigt arbete på grundnivå (kandidatexamen), 12 poäng / 18 hpStudentuppsats (Examensarbete)
    Abstract [en]

    When it comes to game design, two features that have been linked to the success of a game are playability and the subjective game experience. This is perhaps not surprising, as the main purpose of a game is to entertain. What cognitive factors that may underlie these features has, however, not been explored. This study examines the relationship between both workload and cognitive workload and player experience. The results suggest that an increase in workload, including cognitive workload, positively affect the player experience of the game as well as the player’s intrinsic motivation.

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