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  • 101.
    Sotsenko, Alisa
    et al.
    Linnaeus University, Faculty of Technology, Department of computer science and media technology (CM), Department of Media Technology.
    Jansen, Marc
    Linnaeus University, Faculty of Technology, Department of computer science and media technology (CM), Department of Media Technology.
    Milrad, Marcelo
    Linnaeus University, Faculty of Technology, Department of computer science and media technology (CM), Department of Media Technology.
    Rana, Juwel
    Linnaeus University, Faculty of Technology, Department of computer science and media technology (CM), Department of Media Technology. Telenor Grp, Norway.
    Using a Rich Context Model for Real-Time Big Data Analytics in Twitter2016In: 2016 IEEE 4TH INTERNATIONAL CONFERENCE ON FUTURE INTERNET OF THINGS AND CLOUD WORKSHOPS (FICLOUDW), IEEE, 2016, p. 228-233Conference paper (Refereed)
    Abstract [en]

    In this paper we present an approach for contextual big data analytics in social networks, particularly in Twitter. The combination of a Rich Context Model (RCM) with machine learning is used in order to improve the quality of the data mining techniques. We propose the algorithm and architecture of our approach for real-time contextual analysis of tweets. The proposed approach can be used to enrich and empower the predictive analytics or to provide relevant context-aware recommendations.

  • 102.
    Spikol, Daniel
    et al.
    Malmö University, Sweden.
    Ehrenberg, Nils
    Malmö University, Sweden.
    Cuartielles, David
    Arduino Verkstad, Sweden.
    Zbick, Janosch
    Linnaeus University, Faculty of Technology, Department of computer science and media technology (CM), Department of Media Technology.
    Design Strategies for developing a Visual Platform for Physical Computing with Mobile Tools for Project Documentation and Reflection2015In: Proceedings of the Workshops at the 17th International Conference on Artificial Intelligence in Education AIED 2015, Madrid, Spain, June 22 - 26, 2015 / [ed] Jesus Boticario, Kaisa Muldner, CEUR-WS.org , 2015, p. 57-62Conference paper (Refereed)
    Abstract [en]

    This poster discusses work on the design of a visual-based programming language for physical computing and mobile tools for the learners to actively document and reflect on their projects. These are parts of a European project that is investigating how to generate, analyze, use and provide feedback from analytics derived from hands-on learning activities. Our aim is to raise a discussion about how learning analytics, intelligence, and the role of learners’ documenting their work can provide richer opportunities for supporting learning and teaching.

  • 103.
    Spikol, Daniel
    et al.
    Malmö University, Sweden.
    Nouri, Jalal
    Stockholm University, Sweden.
    Pargman, Teresa Cerratto
    Stockholm University, Sweden.
    Milrad, Marcelo
    Linnaeus University, Faculty of Technology, Department of computer science and media technology (CM), Department of Media Technology.
    Emerging Design: Transforming the STEAM Learning Landscape with the Support of Digital Technologies PREFACE2017In: IxD&A: Interaction Design and Architecture(s), ISSN 1826-9745, E-ISSN 2283-2998, no 34, p. 5-6Article in journal (Other academic)
  • 104.
    Stenmark, Kevin
    Linnaeus University, Faculty of Technology, Department of computer science and media technology (CM).
    Enhancing user interactions with a music system for public displays: Identifying appropriate ways to personalize content and interactions with a shared music system in public places2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This thesis investigates which type of user-related/-generated, personal, information is appropriate to share on an interactive public display in a public environment, e.g., user’s names and images, as a mean to enhance interactions with public display applications. This investigation is two-fold, how the content on the public display could be personalized and how interactions with the application can be emphasized. As a specific case of a public display application, an interactive shared music system with a collaborative playlist is chosen. A survey with static prototypes was created and sent out to identify which information users find appropriate sharing, regarding privacy and xyz, but also what information they feel interesting sharing. 47 participants answered the survey and the results informed an iterative design process that generated a series of static and four interactive prototypes.

    Four groups with three participants in each (third group with only two) were used to discuss the interactive prototypes highlighting the implemented features. In a focus group style setting, the participants were asked various questions for each of the four prototypes addressing this and that. During the sessions, notes were taken, and it was also audio recorded. All the data from all groups were analyzed and then also compared between the four groups.

    The result showed that people are ok with sharing their username and first name. The content on the music system can be personalized with pop-up notifications which show information about user’s choices, what song do they vote for or what song do they add to the playlist. Furthermore, the new features indicated a positive effect.

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  • 105.
    Strågefors, Linnea
    Linnaeus University, Faculty of Technology, Department of Media Technology.
    Designing and evaluating a digital tool to support online search of Swedish food recipes: facilitating the search process for the users2017Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Searching for food recipes online is a common task for many people in an increasingly digitalised society. Sweden has, as many countries, local recipes, seasonal products, cultural dinners and measurement and weight standards that can differ from other coun- tries. However general searches for Swedish recipes at common search engines can pose several difficulties. For example that users can’t filter the search results by recipes and that there can be difficulties with ambiguous semantic evaluations of the users’ search queries. Aspects considered in this thesis are also how the user search process could be facilitated by using recipe labels and graphical visualisations of the information. The ambition of this thesis is investigate how online recipe search can be made more effi- cient for people looking for Swedish recipes in Swedish.

    An initial user survey with a questionnaire was conducted to understand the po- tential requirements for the development of a tool to support online search of Swedish recipes. More specifically, the survey inquired about users’ current search experience and tried to identify useful search criteria. The results showed that 82.4% of the par- ticipants prefer to search for recipes online via a search engine, compared with other alternatives such as searching at specific recipe sites. The main difficulty the partici- pants experienced with that search approach was that many of the search results were not recipes but other types of search results. Most participants preferred to see more in- formative recipe items in the search results list. However at the same time, some recipe labels that were present were not actually noticed by most participants. The survey also investigated further what information that could be more appropriate to show about the recipes. Based on the outcomes from the survey study, a prototype application was then developed that targets for Swedish recipe search. The purpose of the prototype is to im- plement the search criteria identified from the survey and to provide enhancements. By developing this prototype, the search criteria could be tested by users on the prototype. A second user survey with a questionnaire was then conducted, evaluating the usabil- ity of the prototype. The prototype shows to offer improvements in filtering the search results to only show Swedish recipes, presenting more relevant recipe information and also improvements in visualising the information in the recipes in the search result list. 

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  • 106.
    Tenic, Anes
    Linnaeus University, Faculty of Technology, Department of computer science and media technology (CM).
    Guidance in a 360-degree video with the help of special effects: Attracting attention to a specific object or segment in a 360-degree video using graphical elements, lights, and colours.2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    360-degree videos offer an immersive experience which is hard to find in traditional videos. The entire scene is floating around the viewer, and a feeling of being there is common. However, something traditional videos have compared to 360-degree videos is control of the outcome. The filmmakers decide what they want to show and how they want to guide the viewer. The control is still an issue in 360-degree videos. In this thesis will the focus be on how a viewer can be attracted to an important part of a scene. This work is concentrated on methods and techniques in the post-production part of video production. The techniques are mainly video effects.   

    The user tests involved 16 participants with different backgrounds including an expert in the field. The participants watched three 360-degree videos each with the same content, but with different techniques made in the post-production part to guide them. It was one video with graphical elements to guide them, one with light effects and one with colour effects. Interviews gave a deeper insight into the participant's experience and opinions on the three videos.

    The video effects affected the participants positively and negatively. The participants were mostly satisfied with effects consisting of graphical elements but not as much with colour. The users lost a bit of their freedom to explore a scene with the light effects, but they were useful when it came to guiding towards something. The participants did find the guiding lines and spotlight as the most suitable methods to attract attention; the spotlight was the most preferred of the two. The red circle effect and the warm/cold colour effect was the least preferred, the warm/cold colour effect as the least preferable.

    The effects helped to attract the viewer to a section of the video, and the user's got a better understanding of the concept. However, more research need to be done to draw attention towards something. A combination of elements like light effects and graphical element effects could improve the post-production part. Research in the future regarding the opportunity to combine techniques from an entire video production needs to be conducted for a significantly more effective way to attract attention to an important side of a scene, without the viewers losing their freedom of exploring, it includes both the post-production side but also methods to attract attention in a set.

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  • 107.
    Vlasenko, Anton
    Linnaeus University, Faculty of Technology, Department of Media Technology.
    Developing and Evaluating Web Marking Tools as a Complementary Service for Medical Telephone-Based Advice-Giving2017Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This master thesis reports on potentially useful applications for “The social layer concept”, consisting of a combination of telephone-based health advice-giving and dynamic marking of shared web pages, with the aim to contribute to the online health counselling domain. An experimental user study was performed to test a web marking tool prototype. The experimental tool was shown to be useful in helping clients focus on relevant health information and dynamic web marking does provide a useful and complementary service to telephone-based advice-giving. It was considered most useful for complex health advice-giving issues.

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  • 108.
    Vulgari, Sofia Kiriaki
    Linnaeus University, Faculty of Technology, Department of computer science and media technology (CM).
    Hand Gesture based Telemedicine enabled by Mobile VR2019Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Virtual Reality (VR) is a highly evolving domain and is used in anincreasing number of areas in today's society. Among the technologiesassociated with VR and especially mobile VR, is hand tracking and handgesture recognition. Telemedicine is one of the elds where VR is startingto thrive, and so the concept of adding the use of hand gestures came to bein order to explore the possibilities that can come from it. This researchis conducted with the development of a prototype application that usessome of the most emerging technologies. Manomotion's hand trackingand hand gesture recognition algorithms, and Photon's servers and developerkit, which makes multi-user applications achievable, allowed theconceptual idea of the prototype to become reality. In order to test itsusability and how potential users perceive it, a user study with 24 participantswas made, 8 of which were either studying or working in themedical eld. Additional expert meetings and observations from the userstudy also contributed to ndings that helped show how hand gesturescan aect a doctor consultation in Telemedicine. Findings showed thatthe participants thought of the proposed system as a less costly and timesaving solution, and that they felt immersed in the VR. The hand gestureswere accepted and understood. The participants did not have dicultieson learning or executing them, and had control of the prototype environment.In addition, the data showed that participants considered it to beusable in the medical eld in the future.

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  • 109.
    Wallin, Christoffer
    Linnaeus University, Faculty of Science and Engineering, School of Computer Science, Physics and Mathematics.
    Responsiv webbdesign: Tekniska designaspekter2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    It is becoming increasingly common for web site owners to customize their site to low-resolution devices such as mobile phones. To implement such an adjustment there are several technical options. This paper examines the technical aspects that can constitute an obstacles for web developers when they meet their customers' demands for resolution-independent design, with responsive web design. The work includes a interview with a client that resulted in a product specification, which then was used as the basis for a prototype. In which responsive web design was tested and evaluated as a technical option. The study revealed several technical aspects that can be challenging,e.g. pictures and iframes,so due to varying support for CSS in different browsers and many web sites complex structure.

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  • 110.
    Weidenberg, Jennie
    Linnaeus University, Faculty of Technology, Department of computer science and media technology (CM).
    Feedback: En studie om hur ett gränssnitt för återkoppling av feedback kan utformas med hjälp av användare.2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Today, most companies gather data about what their users think about their products. Web surveys, phone calls and email are examples of methods for gathering data from users. The data could also be collected by a company employee using interviews or from a user who contacts the company to leave feedback. But what happens if the company can´t provide a channel in which users can leave feedback? Are the interfaces created to meet the users’ needs? Is it possible for the users to leave feedback in the right context? This study has investigated how interactions may be designed to ease communication between users and a company. The company provides a web based software in which users can manage accounting and invoicing for their businesses. Co-design activities has been used to involve users in the design process. A workshop with users resulted in specified desiderate regarding the design and interactions that were used to create prototypes. The prototypes were evaluated by users, using semi structured interviews and observations along with the Thinking-aloud method. The final results of the study showed that the possibility to give feedback should be placed in the context of where the users are while working in the software. This provides an opportunity to communicate feedback wherever they are in the program. The interactions

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  • 111.
    Wu, Po-Han
    et al.
    Department of Engineering Science, National Cheng Kung University, Taiwan..
    Hwang, Gwo-Jen
    National Taiwan University of Science and Technology, Taiwan.
    Milrad, Marcelo
    Linnaeus University, Faculty of Science and Engineering, School of Computer Science, Physics and Mathematics.
    Ke, Hui-Ru
    ´Department of Information and Learning Technology, National University of Tainan, Taiwan.
    Huang, Yueh-Min
    Graduate Institute of Digital Learning and Education, National Taiwan University of Science and Technology.
    An innovative concept map approach for improving students’ learning performance with an instant feedback mechanism2012In: British Journal of Educational Technology, ISSN 0007-1013, E-ISSN 1467-8535, Vol. 43, no 2, p. 217-232Article in journal (Refereed)
    Abstract [en]

    Concept maps have been widely employed for helping students organise their knowledgeas well as evaluating their knowledge structures in a wide range of subject matters.Although researchers have recognised concept maps as being an important educationaltool, past experiences have also revealed the difficulty of evaluating the correctness of aconcept map. It usually takes days or weeks for teachers to manually evaluate theconcept maps developed by students; consequently, the students cannot receive timelyfeedback from the teachers, which not only affects their learning schedules, but alsosignificantly influences the students’ learning achievements. In this paper, a computerbasedconcept map-oriented learning strategy with real-time assessment and feedback isproposed in order to cope with the problems mentioned above. Our approach providesimmediate evaluation of concept maps and gives also real-time feedback to the students.An experiment has been conducted to evaluate the effectiveness of this new strategy incomparison with the conventional computer-based concept map approach. It is foundthat our innovative approach can be significantly beneficial to promote learningachievements as well as the learning attitudes of students.

  • 112.
    Yousefi, Shahrouz
    KTH, Medieteknik och interaktionsdesign, MID.
    3D Gesture Recognition and Tracking for Next Generation of Smart Devices: Theories, Concepts, and Implementations2014Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The rapid development of mobile devices during the recent decade has been greatly driven by interaction and visualization technologies. Although touchscreens have signicantly enhanced the interaction technology, it is predictable that with the future mobile devices, e.g., augmentedreality glasses and smart watches, users will demand more intuitive in-puts such as free-hand interaction in 3D space. Specically, for manipulation of the digital content in augmented environments, 3D hand/body gestures will be extremely required. Therefore, 3D gesture recognition and tracking are highly desired features for interaction design in future smart environments. Due to the complexity of the hand/body motions, and limitations of mobile devices in expensive computations, 3D gesture analysis is still an extremely diffcult problem to solve.

    This thesis aims to introduce new concepts, theories and technologies for natural and intuitive interaction in future augmented environments. Contributions of this thesis support the concept of bare-hand 3D gestural interaction and interactive visualization on future smart devices. The introduced technical solutions enable an e ective interaction in the 3D space around the smart device. High accuracy and robust 3D motion analysis of the hand/body gestures is performed to facilitate the 3D interaction in various application scenarios. The proposed technologies enable users to control, manipulate, and organize the digital content in 3D space.

  • 113.
    Zamam, Mohamad
    Linnaeus University, Faculty of Technology, Department of Media Technology.
    A unified framework for real-time streaming and processing of IoT data2017Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The emergence of the Internet of Things (IoT) is introducing a new era to the realm of computing and technology. The proliferation of sensors and actuators that are embedded in things enables these devices to understand the environments and respond accordingly more than ever before. Additionally, it opens the space to unlimited possibilities for building applications that turn this sensation into big benefits, and within various domains. From smart cities to smart transportation and smart environment and the list is quite long. However, this revolutionary spread of IoT devices and technologies rises big challenges. One major challenge is the diversity in IoT vendors that results in data heterogeneity. This research tackles this problem by developing a data management tool that normalizes IoT data. Another important challenge is the lack of practical IoT technology with low cost and low maintenance. That has often limited large-scale deployments and mainstream adoption. This work utilizes open-source data analytics in one unified IoT framework in order to address this challenge. What is more, billions of connected things are generating unprecedented amounts of data from which intelligence must be derived in real-time. This unified framework processes real-time streams of data from IoT. A questionnaire that involved participants with background knowledge in IoT was conducted in order to collect feedback about the proposed framework. The aspects of the framework were presented to the participants in a form of demonstration video describing the work that has been done. Finally, using the participants’ feedback, the contribution of the developed framework to the IoT was discussed and presented.

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  • 114.
    Zapico, Jorge Luis
    Linnaeus University, Faculty of Technology, Department of computer science and media technology (CM), Department of Media Technology. KTH Royal Institute of Technology, Sweden.
    Green Hackathon: Hacking for sustainable food2014In: 2nd International Conference on ICT for Sustainability 2014, ICT4S-WS 2014, Co-Located with ICT4S 2014, Stockholm, Sweden, 24 August 2014 through 27 August 2014, 2014Conference paper (Other academic)
  • 115.
    Zapico, Jorge Luis
    KTH Royal Institute of Technology.
    ICT and Environmental Sustainability, Friend or Fœ?2012In: Information Technologies & International Development, Vol. 8, no 3, p. 99-101Article, book review (Other (popular science, discussion, etc.))
  • 116.
    Zapico, Jorge Luis
    KTH Royal Institute of Technology.
    The Hacker Ethic, Openness, and Sustainability2013In: The Open Book / [ed] Open Knowledge Foundation, London: The Finnish Institute , 2013, p. 40-44Chapter in book (Other (popular science, discussion, etc.))
  • 117.
    Zapico, Jorge Luis
    et al.
    Linnaeus University, Faculty of Technology, Department of computer science and media technology (CM), Department of Media Technology.
    Hedin, Björn
    KTH Royal Institute of Technology.
    Energy Weight: Tangible Interface for Increasing Energy Literacy2017In: 2017 Fifth IFIP Conference on Sustainable Internet and ICT for Sustainability (SustainIT 2017), IEEE, 2017, p. 97-99Conference paper (Refereed)
    Abstract [en]

    Increasing energy literacy has been identified as an important topic in order to help people understand their energy use and thereby enabling them to reduce their energy use. We have developed a tangible interface for helping people learn about energy by using wooden blocks as representation of several common cases of energy use. These are then placed on a digital scale connected to a computer which visualizes how many solar panels are required to power these.

  • 118.
    Zapico, Jorge Luis
    et al.
    KTH Royal Institute of Technology.
    Kjelkerud, David
    KTH Royal Institute of Technology.
    Berggren, Henrik
    KTH Royal Institute of Technology.
    Turpeinen, Marko
    KTH Royal Institute of Technology.
    Brandt, Nils
    KTH Royal Institute of Technology.
    Carbon.to: improving the understanding of carbon dioxide information2010In: Proceedings of the 24th International Conference on Informatics for Environmental Protection., Shaker Verlag, 2010Conference paper (Refereed)
    Abstract [en]

    We are nowadays increasingly presented with information about greenhouse gases in our everyday life. However thereseems to be a gap between this increase in the exposure to carbon dioxide information and the understanding of how tointerpret it, making behavioral change difficult. This article presents examples of how different applications have dealtwith this problem by representing the carbon dioxide information in different ways. Based on the existing examples, anapplication called carbon.to was developed and released. This service tries to improve the understanding of carbon dioxideinformation by simulation in a playful way. Feedback from the users points towards that the gap in understandingexisted and that carbon.to was successful in helping closing it.

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  • 119.
    Zapico, Jorge Luis
    et al.
    KTH Royal Institute of Technology.
    Pargman, Daniel
    KTH Royal Institute of Technology.
    Ebner, Hannes
    KTH Royal Institute of Technology.
    Eriksson, Elina
    KTH Royal Institute of Technology.
    Hacking sustainability: Broadening participation through Green Hackathons2013Conference paper (Refereed)
    Abstract [en]

    Green Hackathon is an international series of coding events withsustainability purpose. Developers, researchers, environmental practitioners,and anyone else who is interested, work for a limited amount of time to createinnovative software solutions for sustainability. These events have explicitlyaimed to invite a broad spectrum of expertise besides technical expertise. Thisarticle presents the experiences and tensions of including these end users at amostly technically oriented event, and discusses how end-user developmentcould be used to encourage more reflective practices and as well as broadeningthe participation and the interdisciplinary collaboration in these events – withhigher-quality as a prospective outcome.

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  • 120.
    Zapico, Jorge Luis
    et al.
    KTH Royal Institute of Technology.
    Sayan, Bianca
    University of Waterloo, Canada.
    Bonanni, Leonardo
    MIT Media Lab, USA.
    Turpeinen, Marko
    KTH Royal Institute of Technology.
    Young, Steve
    University of Waterloo, Canada.
    Footprinted. org: experiences from using linked open data for environmental impact information2011In: Proceedings of the 25th EnviroInfo Conference – Innovations in Sharing Environmental Observations and Information. / [ed] Pillmann, W., Schade, S., and Smits, P, Shaker Verlag, 2011Conference paper (Refereed)
    Abstract [en]

    Sustainability science relies heavily on information (Allenby 2000, 2006). And as sustainability isgaining weight in decision-making, good and accessible environmental information is needed(Goleman 2009). This is true both at an institutional level, like when deciding the materials forbuilding a product, and at a personal level, deciding between chicken and salmon at thesupermarket. However, most of the environmental information is closed, based on proprietarysoftware, expensive or in text documents that are not possible to process.

    We believe that it is necessary to bring open data concepts from the web to environmentalimpact information (Davis et al, 2010; Zapico et al, 2010). This would increase transparency,openness, and make it easier to create sustainability services on top of the data.

    Exploring these ideas we have created Footprinted1, a web service that is trying to solve theseproblems by opening up the information using linked data, focusing in life cycle assessmentinformation. This article presents the finished application, the experiences developing it, and thefirst usages.

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  • 121.
    Zapico, Jorge Luis
    et al.
    KTH Royal Institute of Technology.
    Turpeinen, Marko
    KTH Royal Institute of Technology.
    Brandt, Nils
    KTH Royal Institute of Technology.
    Greenalytics: a tool for mash-up life cycle assessment of websites2010In: Proceedings of the 24th International Conference on Informatics for Environmental Protection. Aachen, Germany, Shaker Verlag, 2010Conference paper (Refereed)
    Abstract [en]

    The environmental impact of internet is growing, reaching an estimated 1.4% of world greenhouse emissions. This impact is hidden for both users and web developers. Understanding and analyzing the environmental footprint of a website is not an easy task. The impacts are distributed through multiple hardware networks and a global user base, making the individual impacts difficult to allocate. This article presents the development of a functional application for generating automatic life cycle assessments for web sites based on mashing-up information. This application has the aim of making the impact of websites visible, allowing the instant analysis of their carbon footprint using existing analytics data and presenting it in an understandable and transparent way. The development process is presented with detailed information about how the calculations are performed. The results are discussed around two different cases, focusing on the challenges of calculating the server side impact and the possibilities for improvement.

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  • 122.
    Zapico, Jorge Luis
    et al.
    KTH Royal Institute of Technology.
    Turpeinen, Marko
    KTH Royal Institute of Technology.
    Guath, Mona
    KTH Royal Institute of Technology.
    Kilograms or cups of tea: Comparing footprints for better CO2 understanding2011In: PsychNology Journal, ISSN 1720-7525, E-ISSN 1720-7525, Vol. 9, no 1, p. 43-54Article in journal (Refereed)
    Abstract [en]

    Individuals are now often presented information about greenhouse gases in their everydaylife. However, there seems to be a gap between this increase in the exposure to carbondioxide information and the understanding of how to interpret it, making behavioral changedifficult. This article presents examples of how different applications have dealt with thisproblem by representing the carbon dioxide information in different ways. Based on theexisting examples, an application called carbon.to was developed and released. This servicetries to improve the understanding of carbon dioxide information by simulation in a playfulway. Feedback from the users points towards that the gap in understanding existed and thatcarbon.to was successful in helping closing it.

  • 123.
    Zbick, Janosch
    Linnaeus University, Faculty of Technology, Department of Media Technology.
    A Web-based Reference Architecture for Mobile Learning: Its Quality Aspects and Evaluation2017In: 2017 IEEE INTERNATIONAL CONFERENCE ON SOFTWARE ARCHITECTURE WORKSHOPS (ICSAW), IEEE, 2017, p. 232-237Conference paper (Refereed)
    Abstract [en]

    This paper discusses the development process and evaluation of a reference software architecture within the field of mobile learning. The architecture implements the workflow of preparation - activity - analysis & reflection of (data collection) activities supported by mobile applications. A number of challenges, like portability, flexibility, or expandability are important to address in mobile learning. To overcome the mentioned challenges in this field, we are proposing a web-based architecture that is supposed to serve as a foundation for the development of software solutions in the field of mobile learning. We discuss scenario descriptions needed for the evaluation and present three implementations in this field that serve as candidate architectures. With the support of those candidates, the reference architecture is proposed. Important system quality attributes are identified and then applied for an evaluation of the architecture using the SAAM method. We conclude by discussing that the proposed architecture does not only fit the field of mobile learning but can also be adapted to a general solution regarding the workflow of: preparation - activity - analysis & reflection of mobile (data collection) applications.

  • 124.
    Zbick, Janosch
    et al.
    Linnaeus University, Faculty of Technology, Department of computer science and media technology (CM), Department of Media Technology.
    Nake, Isabella
    Linnaeus University, Faculty of Technology, Department of computer science and media technology (CM), Department of Media Technology.
    Milrad, Marcelo
    Linnaeus University, Faculty of Technology, Department of computer science and media technology (CM), Department of Media Technology.
    Jansen, Marc
    Linnaeus University, Faculty of Technology, Department of computer science and media technology (CM), Department of Media Technology.
    A web-based framework to design and deploy mobile learning activities: Evaluating its usability, learnability and acceptance2015In: 2015 IEEE 15th International Conference on Advanced Learning Technologies (ICALT), IEEE Press, 2015, p. 88-92Conference paper (Refereed)
    Abstract [en]

    This paper discusses the efforts carried out related to the design and development of a web-based framework that allows designing, deploying and executing mobile data collecting applications. Furthermore, it also allows analyzing and presenting the data that is generated during the mentioned process. The fact that the framework is completely web-based provides a platform independent execution of the mobile application on any mobile device with a web-browser. As a result that the whole life-cycle of creating, executing and discussing a mobile learning activity is implemented in pure web-based manner separates this work from similar efforts. In the course of this work, the current state of development of two of the components, the authoring tool and the mobile application is presented. This framework was introduced to teachers in an activity to follow up an initial study. On the basis of a workshop with teachers, we performed an explorative study regarding the technology acceptance and usability of two components of the proposed framework. The results are discussed and analyzed in this paper.

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  • 125.
    Zbick, Janosch
    et al.
    Linnaeus University, Faculty of Technology, Department of Media Technology.
    Vogel, Bahtijar
    Malmö University.
    Spikol, Daniel
    Malmö University.
    Jansen, Marc
    Linnaeus University, Faculty of Technology, Department of Media Technology.
    Milrad, Marcelo
    Linnaeus University, Faculty of Technology, Department of Media Technology.
    Toward an Adaptive and Adaptable Architecture to Support Ubiquitous Learning Activities2016In: Mobile, Ubiquitous, and Pervasive Learning: Fundaments, Applications, and Trends / [ed] Alejandro Peña-Ayala, Springer, 2016, p. 193-222Chapter in book (Refereed)
    Abstract [en]

    The continuous evolution of learning technologies combined with the changes within ubiquitous learning environments in which they operate result in dynamic and complex requirements that are challenging to meet. The fact that these systems evolve over time makes it difficult to adapt to the constant changing requirements. Existing approaches in the field of Technology Enhanced Learning (TEL) are generally not addressing those issues and they fail to adapt to those dynamic situations. In this chapter, we investigate the notion of an adaptive and adaptable architecture as a possible solution to address these challenges. We conduct a literature survey upon the state of the art and state of practice in this area. The outcomes of those efforts result in an initial model of a Domain-specific architecture to tackle the issues of adaptability and adaptiveness. To illustrate these ideas, we provide a number of scenarios where this architecture can be applied or is already applied. Our proposed approach serves as a foundation for addressing future ubiquitous learning applications where new technologies constantly emerge and new requirements evolve.

  • 126.
    Zetterman, Björn-Erik Adrian
    Linnaeus University, Faculty of Technology, Department of computer science and media technology (CM).
    Beekeepers usage of IoT: Data collection, sharing and visualization in the domain of beekeeping.2018Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This master thesis is exploring Beekeepers usage of Internet of Things, or “Internet of Bees”.

    Since most of the prior contributions are focusing on data gathering, the approach to focus on the users needs is central to take next steps in the field of using IoT for Beekeeping.

    After the introduction a chapter with an overview of current research and commercial solutions are presented. This is followed by a quantitative study with 222 responds, answering what beekeepers like to know about their bees, what platforms used by end users and what the beekeeper as a user expects.

    An demo of an existing commercial system is set up in real conditions, describing how to mount and configure a demo. Communication, synchronization and presentation is described. A closed user interface and a public user interface are a part of the demonstration. Potential users of this technique are interviewed to gain better understanding of users opinion of the demo. This is followed by another demo using a free of charge app where sound analysis processed with AI is tested.

    This thesis explains what beekeepers as users of Internet of Things could gain added value to their beekeeping.

    Download full text (pdf)
    fulltext
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