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  • 1.
    Beattie, Mark
    et al.
    Computer Science Research Institute and School of Computing and Mathematics, University of Ulster.
    Hallberg, Josef
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Nugent, Chris D.
    University of Ulster. School of Computing and Mathematics, University of Ulster, Computer Science Research Institute, University of Ulster.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Cleland, Ian
    University of Ulster. School of Computing and Mathematics.
    Lee, Sungyoung
    Ubiquitous Computing Laboratory, Kyung Hee University, Seocheon-dong, Giheung-gu.
    A Collaborative Patient-Carer Interface for Generating Home Based Rules for Self-Management2015Ingår i: Smart Homes and Health Telematics: 12th International Conference, ICOST 2014, Denver, CO, USA, June 25-27, 2014, Revised Papers / [ed] Cathy Bodine; Sumi Helal; Tao Gu; Mounir Mokhtari, New York: Encyclopedia of Global Archaeology/Springer Verlag, 2015, 93-102 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    The wide spread prevalence of mobile devices, the decreasing costs of sensor technologies and increased levels of computational power have all lead to a new era in assistive technologies to support persons with Alzheimer’s disease. There is, however, still a requirement to improve the manner in which the technology is integrated into current approaches of care management. One of the key issues relating to this challenge is in providing solutions which can be managed by non-technically orientated healthcare professionals. Within the current work efforts have been made to develop and evaluate new tools with the ability to specify, in a non-technical manner, how the technology within the home environment should be monitored and under which conditions an alarm should be raised. The work has been conducted within the remit of a collaborative patient-carer system to support self-management for dementia. A visual interface has been developed and tested with 10 healthcare professionals. Results following a post evaluation of system usability have been presented and discussed.

  • 2.
    Bergvall-Kåreborn, Birgitta
    et al.
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Innovation och Design.
    Broberg, Anders
    Umeå universitet.
    Lassinantti, Josefin
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Innovation och Design.
    Davoli, Lorenzo
    Umeå universitet.
    Kuenen, Stoffel
    Umeå universitet.
    Palmquist, Lena
    Umeå universitet.
    Parnes, Peter
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Ståhlbröst, Anna
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Innovation och Design.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Wennberg, Paula
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, CDT.
    User toolkits for citizen-centric mobild service innovation2012Ingår i: eChallenges e-2012 Conference Proceedings / [ed] Paul Cunningham; Miriam Cunningham, IIMC International Information Management Corporation , 2012Konferensbidrag (Refereegranskat)
    Abstract [en]

    Around the world, there is an ongoing shift from en economy focusing on product development to an economy with focus on digital service development. An ongoing initiative in Europe to support this shift is the Internet of Services (IoS) which strives for a situation where everything that is needed to use a software is available as a service. The aim of this paper is to present a toolkit that non-programmers can use develop their own innovative mobile services. This environment strives to put forth a situation where technologies are made available as components that easily can be composed into a mobile services by just about anyone. This has tremendous impact on the feasibility of citizen-centric services where citizens create apps based on their current needs in their contemporary situation.

  • 3.
    Boytsov, Andrey
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Zaslavsky, Arkady
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Extending context spaces theory by predicting run-time context2009Ingår i: Smart Spaces and Next Generation Wired/Wireless Networking: 9th International Conference, NEW2AN 2009 and Second Conference on Smart Spaces, ruSMART 2009, St. Petersburg, Russia, September 15-18, 2009. Proceedings / [ed] Sergey Balandin; Dmitri Moltchanev; Yevgeni Koucheryavy, Berlin: Encyclopedia of Global Archaeology/Springer Verlag, 2009, 8-21 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    Context awareness and prediction are important for pervasive computing systems. The recently developed theory of context spaces addresses problems related to sensor data uncertainty and high-level situation reasoning. This paper proposes and discusses componentized context prediction algorithms and thus extends the context spaces theory. This paper focuses on two questions: how to plug-in appropriate context prediction techniques, including Markov chains, Bayesian reasoning and sequence predictors, to the context spaces theory and how to estimate the efficiency of those techniques. The paper also proposes and presents a testbed for testing a variety of context prediction methods. The results and ongoing implementation are also discussed.

  • 4.
    Cleland, Ian
    et al.
    University of Ulster. School of Computing and Mathematics.
    Kikhia, Basel
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Nugent, Chris
    University of Ulster. School of Computing and Mathematics.
    Boytsov, Andrey
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Hallberg, Josef
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    McClean, Sally
    Computing and Information Engineering, University of Ulster.
    Finlay, Dewar
    University of Ulster. School of Computing and Mathematics.
    Optimal Placement of Accelerometers for the Detection of Everyday Activities2013Ingår i: Sensors, ISSN 1424-8220, E-ISSN 1424-8220, Vol. 13, nr 7, 9183-9200 s.Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This article describes an investigation to determine the optimal placement of accelerometers for the purpose of detecting a range of everyday activities. The paper investigates the effect of combining data from accelerometers placed at various bodily locations on the accuracy of activity detection. Eight healthy males participated within the study. Data were collected from six wireless tri-axial accelerometers placed at the chest, wrist, lower back, hip, thigh and foot. Activities included walking, running on a motorized treadmill, sitting, lying, standing and walking up and down stairs. The Support Vector Machine provided the most accurate detection of activities of all the machine learning algorithms investigated. Although data from all locations provided similar levels of accuracy, the hip was the best single location to record data for activity detection using a Support Vector Machine, providing small but significantly better accuracy than the other investigated locations. Increasing the number of sensing locations from one to two or more statistically increased the accuracy of classification. There was no significant difference in accuracy when using two or more sensors. It was noted, however, that the difference in activity detection using single or multiple accelerometers may be more pronounced when trying to detect finer grain activities. Future work shall therefore investigate the effects of accelerometer placement on a larger range of these activities

  • 5. Drugge, Mikael
    et al.
    Hallberg, Josef
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Signaler och system.
    Parnes, Peter
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Synnes, Kåre
    Wearable systems in nursing home care: prototyping experience2006Ingår i: IEEE pervasive computing, ISSN 1536-1268, E-ISSN 1558-2590, Vol. 5, nr 1, 86-91 s.Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The development of a wearable prototype systems after studies conducted in a nursing home care is discussed. The specific problems encountered by medical workers at nursing homes includes communication, information dissemination, access to patient charts and organizational issues. The failure of which may cause stress, discomfort, and dissatisfaction among caretakers and patients as well as possible detrimental health consequences for patients. A Wizard of Oz experiments was used to retrieve information, process interrupting phone calls, to simplify communication with others, and to minimize the interaction needed with the wearable computer.

  • 6. Drugge, Mikael
    et al.
    Hallberg, Josef
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Signaler och system.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Parnes, Peter
    Relieving the medical workers' daily work through wearable and pervasive computing2005Ingår i: ICE2005: the 11th International Conference on Concurrent Enterprising : integrated engineering of products, services and organisations, Munich, Germany 20-22 June 2005, Nottingham: Centre for concurrent enterprising, University of Nottongham , 2005Konferensbidrag (Refereegranskat)
    Abstract [en]

    We intend to relieve the daily work at care-centers, allowing medical workers to focus on the patients and their needs. This goal can be achieved by employing technology that automate and simplify tasks previously requiring tedious interventions, giving more time for the important human to human interaction. For any technology to become accepted by the medical workers, we must ensure that it is highly natural and unobtrusive, without interfering with their caregiving. By studying the medical workers’ daily work, we can draw conclusions on what problems they encounter, allowing us to develop prototypes which can be deployed and used at the care-centers. In doing this, we can proceed to study the acceptance and usability of our proposed solution, and see whether and how it solves the problem. In this position paper, we present our current and future research in wearable and pervasive health-care.

  • 7. Drugge, Mikael
    et al.
    Nilsson, Marcus
    Luleå tekniska universitet.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Parnes, Peter
    Eventcasting with a wearable computer2004Ingår i: Proceedings, 24th International Conference on Distributed Computing Systems workshops: 23 - 24 March 2004, Hachioji, Tokyo, Japan / [ed] Nian-Feng Tzeng, Los Alamitos, Calif: IEEE Computer Society Press , 2004, 408-413 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    Traditionally, interaction methods for wearable computers have focused on input to the computer itself, yet little has been done when it comes to allowing interaction with the surrounding environment. Pervasive computing, on the other hand, offers access to computational power from any place all the time, yet most interaction techniques utilize either physical hardware or monitoring of the user in order to receive input. This paper presents a novel form of interaction by which a wearable computer user can interact with and control a pervasive computing environment in a natural and intuitive manner. Using sensors, the user can be allowed to literally "throw" events into the environment as a way of interacting with devices and computers

  • 8. Drugge, Mikael
    et al.
    Witt, Hendrik
    TZI, Bremen.
    Parnes, Peter
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Synnes, Kåre
    Using the "HotWire'' to study interruptions in wearable computing primary tasks2006Ingår i: Proceedings: Tenth IEEE International Symposium on Wearable Computers, ISWC 2006 : Montreux, Switzerland, October 11 - 14, 2006, Piscataway, NJ: IEEE Communications Society, 2006, 37-44 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    As users of wearable computers are often involved in real-world tasks of critical nature, the management and handling of interruptions is crucial for efficient interaction and task performance. We present a study about the impact that different methods for interruption have on those users, to determine how interruptions should be handled. The study is performed using an apparatus called "HotWire" for simulating primary tasks in a laboratory experiment, while retaining the properties of wearable computers being used in mobile, physical, and practical tasks.

  • 9. Dudarenko, Natalia
    et al.
    Rana, Juwel
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Ranking algorithm by contacts priority for social communication systems2010Ingår i: Smart Spaces and Next Generation Wired/Wireless Networking: Third Conference on Smart Spaces, ruSMART 2010, and 10th International Conference, NEW2AN 2010, St. Petersburg, Russia, August 23-25, 2010. Proceedings / [ed] Sergey Balandin; Roman Dunaytsev; Yevgeni Koucheryavy, Springer Science+Business Media B.V., 2010, 38-49 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    The paper presents the ranking algorithm by contacts with priority application for Social Communication Services. This algorithm makes it Possible to rank contacts in Different Social Communication Services by Their priority for the user, and find a preferable communication tools for everytime contact into the social graph. It Is Proposed to Determine Priorities Of The contacts Using communication history. The ranking algorithm is based on the Markov Chain Theory and Social Strength Calculation Approach. The paper exploits the Opportunities for measuring social strength for the contacts and also "prioritizes communication tools for Simplifying communication. The results are Lindsey village an example.

  • 10.
    Hallberg, Josef
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Signaler och system.
    Backlund-Norberg, Mia
    Luleå tekniska universitet, Institutionen för system- och rymdteknik.
    Kristiansson, Johan
    Ericsson Research AB.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Nugent, Chris
    University of Ulster.
    Creating dynamic groups using context-awareness2007Ingår i: Proceedings of the 6th International Conference on Mobile and Ubiquitous Multimedia: December 12 - 14, 2007, Oulu, Finland / [ed] Timo Ojala, Red Hook, NY: Curran Associates, Inc., 2007, 42-49 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    This article presents the conceptual communication model of dynamic groups, that dynamically utilizes three traditional communication metaphors through the use of context-based information. Dynamic groups makes creation, management and usage of groups easy. It enables social network structures to be maintained in both virtual and face-to-face settings as well as in the combination thereof. This article defines the dynamic management of advanced contact lists which can include presence and status information, a/synchronous multimedia communication tools, and methods for structuring social networks. It also contains an initial evaluation and a proposed architecture for technical realisation.

  • 11.
    Hallberg, Josef
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Signaler och system.
    Backlund-Norberg, Mia
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Nugent, Chris
    Computer Science Research Institute, University of Ulster.
    Profile management for dynamic groups2009Ingår i: Intelligent Patient Management, Berlin: Encyclopedia of Global Archaeology/Springer Verlag, 2009, 297-313 s.Kapitel i bok, del av antologi (Refereegranskat)
    Abstract [en]

    There is a growing need in supporting social networking for groups who often become isolated, such as elders living at home. In a social network people with similar diseases and ailments can find each other and share information to improve their understanding of their illness. Group communication tools can help maintain a virtual social network and provide a base for information retrieval. Nevertheless, they often lack the strengths of the social networking tools and vice versa. Within this work we have developed a new concept called dynamic groups. Dynamic groups make creation, management, and usage of groups for communication and social networking easy. Nevetheless, for this to work the profile management system is required to handle more than just user information, it is required to provide users with control over their data and offer privacy and customisation capabilities. This article presents HomeCom, a model for profile management in dynamic groups. It also presents the solutions for making queries, as well as the solutions for privacy and customisation using multiple profiles and an integrated rule engine.

  • 12.
    Hallberg, Josef
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Casati, Fabio
    University of Trento.
    Hedman, Anders
    Kungliga tekniska högskolan, KTH.
    Plomp, Johan
    VTT Technical Research Centre of Finland, Espoo.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Mental Wellbeing for Active Healthy Ageing2014Rapport (Övrigt vetenskapligt)
  • 13.
    Hallberg, Josef
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Signaler och system.
    Kikhia, Basel
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Bengtsson, Johan
    Luleå tekniska universitet, Institutionen för system- och rymdteknik. Luleå tekniska universitet, Institutionen för hälsovetenskap, Innovation och ehälsa.
    Sävenstedt, Stefan
    Luleå tekniska universitet, Institutionen för hälsovetenskap, Omvårdnad.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Reminiscence processes using life-log entities for persons with mild dementia2009Ingår i: Proceedings of the First International Workshop on Reminiscence Systems (RSW-2009): Cambridge, UK, 5 September, 2009, 2009, 16-21 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    In this paper we present the reminiscence process in a prototype memory support tool for persons with mild dementia. The purpose is to promote autonomy for persons with mild dementia by supporting actualization and maintenance of episodic memories, and real-time access to a context-annotated life log.  The main research challenges are defined with a user scenario, Suitable reminiscence methods and memory entitities to reperesent life logs are described, and a preliminary architecture is presented. Finally an early design of a concrete ReviewClient is shown, to solicit feedback on the reminiscence methods, entitites chosen, architecture and the usability of the proposed interface.

  • 14.
    Hallberg, Josef
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Signaler och system.
    Nilsson, Marcus
    Luleå tekniska universitet.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Positioning with Bluetooth2003Ingår i: 10th International Conference on Telecommunications: ICT 2003 ; February 23 - March 1, 2003, Sofitel Coralia Maeva Beach Hotel, Tahiti, Papeete, French Polynesia, Piscataway, NJ: IEEE Communications Society, 2003, 954-958 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    This paper presents an evaluation of Bluetooth positioning in a general positioning platform. Proceeding the evaluation a Bluetooth based positioning system was implemented in order to complement the theoretical evaluation with empirical tests. Three different ways of positioning with Bluetooth have been developed. With a registered positioning service a Bluetooth device has an active role in the positioning task as it sends a position on request. A Bluetooth device can also take a more passive role in a positioning task, where the unique address of the device is used by a connected device to look up respective position in a database. It is also possible to forward a position gained from the positioning platform using the peer to peer characteristics in Bluetooth. This paper does also contain a discussion on the theoretical time requirements for a positioning system based on Bluetooth. Empirical tests show that these requirements hold.

  • 15.
    Hallberg, Josef
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Signaler och system.
    Nugent, Chris D.
    IEEE.
    Davies, Richard J.
    University of Ulster. School of Computing and Mathematics.
    Synnes, Kåre
    Donnelly, Mark P.
    University of Ulster. School of Computing and Mathematics.
    Finlay, Dewar
    University of Ulster. School of Computing and Mathematics.
    Mulvenna, Maurice
    University of Ulster. School of Computing and Mathematics.
    HomeRuleML: a model for the exchange of decision support rules within smart environments2007Ingår i: IEEE International Conference on Automation Science and Engineering, 2007: CASE 2007 ; 22 - 25 Sept. 2007, Scottsdale, Arizona, Piscataway, NJ: IEEE Communications Society, 2007, 513-520 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    The demands for smart environments, which can help to facilitate as well as monitor independent living are increasing. With this comes a desire for decision support rules to process data recorded from such environments. However, testing and evaluating rules can be both time-consuming and indeed stressful for the inhabitants. Within this paper we propose a model, referred to as HomeRuleML, for representing decision support rules for smart environments. The motivating factor behind such a proposal is to provide a widely and freely accessible set of rules which can be openly used and exchanged within the research domain and beyond. This model has the potential to decrease the time required for deployment, and inevitability improve the inhabitants' quality of life. In the paper we explain in detail the structure of adopting this approach and also provide an indication of the typical types of software tools required for its use.

  • 16.
    Hallberg, Josef
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Signaler och system.
    Svensson, Sara
    Luleå tekniska universitet.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Enhanced Experience of Sport Events2004Övrigt (Övrigt vetenskapligt)
    Abstract [en]

    This paper describes a system where Internet-enabled sensor technology was integrated into a context information platform to give viewers of sport events an enriched media experience. The system was developed as a proof of concept and was evaluated during real-life use at the Vasaloppet cross-country ski event. Using Bluetooth wireless ad-hoc networking and GPRS technology, sensor data was transmitted from contestants to a context information platform, which in turn presented the sport event viewer with a personalized, context-aware view.

  • 17.
    Hallberg, Josef
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Signaler och system.
    Svensson, Sara
    Luleå tekniska universitet.
    Östmark, Åke
    Lindgren, Per
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Delsing, Jerker
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Enriched media-experience of sport events2004Ingår i: Proceedings: Sixth IEEE Workshop on Mobile Computing Systems and Applications, WMCSA 2004 : 2 - 3 December 2004, Windermere, Cumbria, United Kingdom, Los Alamitos, Calif: IEEE Communications Society, 2004, 2-9 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    This paper describes a system where Internet-enabled sensor technology was integrated into a context-aware platform to give viewers of sport events an enriched media experience. The system was developed as a proof of concept and was evaluated during real-life use at the Vasaloppet cross-country ski event. Using Bluetooth wireless ad-hoc networking and GPRS technology, sensor data was transmitted from contestants to the context-aware platform Alipes, which in turn presented the sport event viewer with a personalized, context-aware view. In this paper we discuss the system architecture and integration of components. The system was evaluated both from technical and user perspectives, where the evaluation results confirm our approach to be technically feasible and that the system provide an enriched media-experience for the majority of viewers.

  • 18.
    Hong, Xin
    et al.
    Ulster University.
    Nugent, Chris
    Ulster University.
    Finley, Dewar
    Ulster University.
    Chen, Luke
    Ulster University.
    Davies, Richard
    Ulster University.
    Wang, Haiying
    Ulster University.
    Donnelly, Mark
    Ulster University.
    Zheng, Huiru
    Ulster University.
    Mulvenna, Maurice
    Ulster University.
    Hallberg, Josef
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    OpenHome: Approaches to Constructing Sharable Datasets within Smart Homes2009Ingår i: CHI '09: Extended Abstracts on Human Factors in Computing Systems, New York: ACM Digital Library, 2009Konferensbidrag (Refereegranskat)
    Abstract [en]

    In this paper we present our initial efforts to develop approaches for structuring and building openly accessible, scalable, shared home behaviour datasets within smart home communities.

  • 19.
    Idowu, Samuel
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Hagos, Desta Haileselassie
    Tesfay, Welderufael Berhane
    Famurewa, Abiola
    Rana, Juwel
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    NexTrend: Context-aware music-relay corridors using NFC tags2013Ingår i: 7th International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing: IMIS 2013, Taichung, Taiwan; 3 July 2013 - 5 July 2013, Piscataway, NJ: IEEE Computer Society Press , 2013, 573-578 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    The rise of pervasive computing presents unique opportunities due to increasing availability of smart devices such as mobile phones and tablets equipped with various sensors enabling Near Field Communication (NFC) technologies. The growth of mobile computing has led to an increase in access to digital music. With the growth of digital music, the development of music information sharing services for users becomes important. The existing sharing methods are based on the users’ social network and preferences in music. However, sometimes, sharing music according to location and time is needed.This paper presents work on smart spaces equipped with NFC tags, deployed at different locations in hallways for discovering and sharing new music experiences. This concept provides a new way of interaction between passers-by for discovering music in relation to location. For example, the hallway locations use sensing devices to provide an automatic means of exchanging music information among the passers-by.We utilized NFC tags as Music-Relay hot spots. The hot spot retrieves information about the music a user is playing on her/his device while s/he is passing by the hot spot. The work contributes to a pervasive service that equips an environment with music context intelligence about a passer-bys choice of music and allows users to feel the musical presence of other users who have been in the same location at previous point in time. In general, this paper proposes a new music information sharing service using the music information captured from users at a specific location in time.

  • 20.
    James, Nord
    et al.
    Luleå tekniska universitet.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Parnes, Peter
    An architecture for location aware applications2002Ingår i: Proceedings of the 35th Annual Hawaii International Conference on System Sciences: 7 - 10 January 2001 [i.e. 2002], Big Island, Hawaii / [ed] Ralph H. Sprague, Los Alamitos, Calif: IEEE Communications Society, 2002, 3805-3810 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    This paper presents an architecture for location aware applications, where positioning sources such as GPS, WaveLAN and Bluetooth devices can be seamlessly interchanged and combined to achieve a more accurate positioning service with a higher availability. The architecture also supports peer-to-peer communication to allow clients to interchange position information over a network such as Bluetooth or WaveLAN. This enables a user to use other users position sources if their clients are close enough. The position information can be used directly by an application or be combined with habitual and other contextual information to achieve more personalized applications. A generic positioning protocol for interchange of position information between position sources and client applications, and different techniques for merging of position information are presented. The interfaces to the platform are also discussed. The paper finally touches on privacy issues and outlines a schema for handling positioning information by user controlled contracts

  • 21.
    Jimenez, Lara Lorna
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Simon, Miguel Gomez
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Schelén, Olov
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Kristiansson, Johan
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Åhlund, Christer
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    CoMA: Resource Monitoring of Docker Containers2015Ingår i: Proceedings of the 5th International Conference on Cloud Computing and Services Science (CLOSER 2015), SCITEPRESS Digital Library , 2015, Vol. 1, 145-154 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    This research paper presents CoMA, a Container Monitoring Agent, that oversees resource consumption of operating system level virtualization platforms, primarily targeting container-based platforms such as Docker. The core contribution is CoMA, together with a quantitative evaluation verifying the validity of the measurements reported by the agent for three metrics: CPU, memory and block I/O. The proof-of-concept is implemented for Docker-based systems and consists of CoMA, the Ganglia Monitoring System and the Host sFlow agent. This research is in line with the rising trend of container adoption which is due to the resource efficiency and ease of deployment. These characteristics have set containers in a position to topple virtual machines as the reigning virtualization technology in data centers.

  • 22. Kikhia, Basel
    et al.
    Bengtsson, Johan
    Luleå tekniska universitet, Institutionen för system- och rymdteknik. Luleå tekniska universitet, Institutionen för hälsovetenskap, Innovation och ehälsa.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Sani, Zaheer ul Hussain
    Luleå tekniska universitet, Institutionen för hälsovetenskap.
    Hallberg, Josef
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Signaler och system.
    Creating digital life stories through activity recognition with image filtering2010Ingår i: Aging friendly technology for health and independence: 8th International Conference on Smart Homes and Health Telematics, ICOST 2010, Seoul, Korea, June 22-24, 2010 ; proceedings / [ed] Yeunsook Lee, Berlin: Encyclopedia of Global Archaeology/Springer Verlag, 2010, 203-210 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    This paper presents two algorithms that enables the MemoryLane system to support persons with mild dementia through creation of digital life stories. The MemoryLane system consists of a Logging Kit that captures context and image data, and a Review Client that recognizes activities and enables review of the captured data. The image filtering algorithm is based on image characteristics such as brightness, blurriness and similarity, and is a central component of the Logging Kit. The activity recognition algorithm is based on the captured contextual data together with concepts of persons and places. The initial results indicate that the MemoryLane system is technically feasible and that activity-based creation of digital life stories for persons with mild dementia is possible.

  • 23.
    Kikhia, Basel
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Boytsov, Andrey
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Hallberg, Josef
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Sani, Zaheer ul Hussain
    Luleå tekniska universitet, Institutionen för hälsovetenskap.
    Jonsson, Håkan
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Structuring and Presenting Lifelogs based on Location Data2014Ingår i: Pervasive Computing Paradigms for Mental Health: 4th International Symposium, MindCare 2014, Tokyo, Japan, May 8-9, 2014, Revised Selected Papers / [ed] Pietro Cipresso; Alaksandar Matic; Guillaume Lopez, Cham: Encyclopedia of Global Archaeology/Springer Verlag, 2014, 133-144 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    Lifelogging techniques help individuals to log their life and retrieve important events, memories and experiences. Structuring lifelogs is a major challenge in lifelogging systems since the system should present the logs in a concise and meaningful way to the user. In this paper the authors present an approach for structuring lifelogs as places and activities based on location data. The structured lifelogs are achieved using a combination of density-based clustering algorithms and convex hull construction to identify the places of interest. The periods of time where the user lingers at the same place are then identified as possible activities. In addition to structuring lifelogs the authors present an application in which images are associated to the structuring results and presented to the user for reviewing. The system is evaluated through a user study consisting of 12 users, who used the system for 1 day and then answered a survey. The proposed approach in this paper allows automatic inference of information about significant places and activities, which generates structured image-annotated logs of everyday life.

  • 24.
    Kikhia, Basel
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Boytsov, Andrey
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Hallberg, Josef
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Sani, Zaheer ul Hussain
    Luleå tekniska universitet, Institutionen för hälsovetenskap.
    Jonsson, Håkan
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Structuring and presenting lifelogs based on location data2012Rapport (Övrigt vetenskapligt)
    Abstract [en]

    Lifelogging techniques help individuals to log their life and retrieve important events, memories and experiences. Structuring lifelogs is a major challenge in lifelogging systems since the system should present the logs in a concise and meaningful way to the user. In this article the authors present a novel approach for structuring lifelogs as places and activities based on location data. The structured lifelogs are achieved using a combination of density-based clustering algorithms and convex hull construction to identify the places of interest. The periods of time where the user lingers at the same place are then identified as possible activities. In addition to structuring lifelogs the authors present an application in which images are associated to the structuring results and presented to the user for reviewing. The proposed approach allows automatic inference of information about significant places and activities, which generates structured image-annotated logs of everyday life.

  • 25.
    Kikhia, Basel
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Hallberg, Josef
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Signaler och system.
    Bengtsson, Johan
    Luleå tekniska universitet, Institutionen för system- och rymdteknik.
    Sävenstedt, Stefan
    Luleå tekniska universitet, Institutionen för hälsovetenskap, Omvårdnad.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Building digital life stories for memory support2010Ingår i: International Journal of Computers in Healthcare, ISSN 1755-3199, Vol. 1, nr 2, 161-176 s.Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The number of persons suffering from dementia is increasing, and there is significant human and economic value to gain by enabling them to keep living independently in their homes. The top priority unmet need is for memory support. This paper introduces context-awareness and life-logging in a system using reminiscence therapy methods, embodied as an ICT memory aid for recording past, current and future activities, which can later be recalled. The tool may help build or maintain episodic memories and self-image, although evidence in this area is lacking. It is designed to also give direct and instrumental support in other priority needs areas. A prototype design is described for a system that is by necessity extremely easy to use, with a touch screen computer in the home and mobile devices for data capture and cognitive support. The main life-log entities associated with the logged activities are places, persons, personal items, and recorded media. Privacy, trust and dignity are key ethical issues.

  • 26. Kikhia, Basel
    et al.
    Hallberg, Josef
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Signaler och system.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Sani, Zaheer ul Hussain
    Context-aware life-logging for persons with mild dementia2009Ingår i: 2009 annual international conference of the IEEE Engineering in Medicine and Biology Society: EMBC 2009 ; Minneapolis, Minnesota, USA, 3 - 6 September 2009, Piscataway, NJ: IEEE Communications Society, 2009, 6183-6186 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    The demands of introducing technology to support independent living is increasing. This is true also for persons suffering from mild dementia who may have difficulties remembering important information, such as activities, numbers, names, objects, faces, and so on. This paper presents a context-aware life-logging system, called MemoryLane, which can support independent living and improve quality of life for persons with mild dementia. The system offers both real time support as well as possibilities to rehearse and recall activities for building episodic memory. This paper also presents a mobile client to be used in MemoryLane, as well as an evaluation of the importance of different data for the purpose of memory recollection.

  • 27.
    Kikhia, Basel
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Simon, Miguel Gomez
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Jimenez, Lara Lorna
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Hallberg, Josef
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Karvonen, Niklas
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Analyzing Body Movements within the Laban Effort Framework using a Single Accelerometer2014Ingår i: Sensors, ISSN 1424-8220, E-ISSN 1424-8220, Vol. 14, nr 3, 5725-41 s.Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This article presents a study on analyzing body movements by using a single accelerometer sensor. The investigated categories of body movements belong to the Laban Effort Framework: Strong - Light, Free – Bound and Sudden - Sustained. All body movements were represented by a set of activities used for data collection. The calculated accuracy of detecting the body movements was based on collecting data from a single wireless tri-axial accelerometer sensor. Ten healthy subjects collected data from three body locations (chest, wrist and thigh) simultaneously in order to analyze the locations comparatively. The data was then processed and analyzed using Machine Learning techniques. The wrist placement was found to be the best single location to record data for detecting (Strong – Light) body movements using the Random Forest classifier. The wrist placement was also the best location for classifying (Bound – Free) body movements using the SVM classifier. However, the data collected from the chest placement yielded the best results for detecting (Sudden – Sustained) body movements using the Random Forest classifier. The study shows that the choice of the accelerometer placement should depend on the targeted type of movement. In addition, the choice of the classifier when processing data should also depend on the chosen location and the target movement.

  • 28. Kristiansson, Johan
    et al.
    Hallberg, Josef
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Signaler och system.
    Svensson, Sara
    Luleå tekniska universitet.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Parnes, Peter
    Supporting automatic media resource selection using context-awareness2005Ingår i: The Third International Conference on Advances in Mobile Multimedia: (MoMM2005), September 19-21, 2005, Kuala Lumpur, Malaysia / [ed] G. Kotsis, Die Österreichische Computer Gesellschaft, 2005Konferensbidrag (Refereegranskat)
    Abstract [en]

    In a world of ubiquitous media resources, such as cameras, displays, microphones, provided by a wide variety of multimedia systems, there is a need for automatic resource selection which seamlessly utilizes the best available communication tool from a user perspective. This paper therefore presents an algorithm which uses context-awareness to support automatic media resource selection. The algorithm takes advantage of an abstract classification of privacy, quality, and cost in order to compare media resources to user’s preferences. As a proof of concept implementation, the algorithm has been incorporated into an e-meeting application called Marratech.

  • 29.
    McDonald, Heather
    et al.
    University of Ulster.
    Nugent, Chris
    University of Ulster.
    Hallberg, Josef
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Finlay, Dewar
    University of Ulster.
    Moore, George
    University of Ulster.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    The homeML suite: shareable datasets for smart home environments2013Ingår i: Health and Technology, ISSN 2190-7188, E-ISSN 2190-7196, Vol. 3, nr 2, 177-193 s.Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The lack of a standard format for storing data generated within the smart environments research domain is limiting the opportunity for researchers to compare and share datasets. The opportunity to re-use and share datasets is also being limited due to lack of an online resource available to researchers. In our current work we attempt to resolve these issues through the creation of homeML, a proposed format for storing and sharing data and the development of the homeML Suite as a means of supporting the use of homeML. Within this article the latest version of homeML, version 2.2 is presented, where the 'annotationDetails' element is introduced. An extended evaluation of the homeML Suite is also discussed. A usability and functionality study was conducted by a number of experienced researchers working within the domain of smart environments. The methodology of both studies is discussed in detail. Each participant's interactions with homeML and the suite of tools is presented, the findings of which have been positive. All participants agreed that the homeML Suite would be a useful tool to be available within the research domain and they would recommend it to their fellow researchers.

  • 30.
    Nilsson, Marcus
    et al.
    Luleå tekniska universitet.
    Drugge, Mikael
    Liljedahl, Urban
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Parnes, Peter
    A study on users' preference on interruption when using wearable computers and head mounted displays2005Ingår i: Third IEEE International Conference on Pervasive Computing and Communications, PerCom 2005: Kauai Island, HI; 8 March 2005 through 12 March 2005, Los Alamitos: IEEE Computer Society Press , 2005, 149-158 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    An important part of making a wearable computer un-obtrusive is the user interface and the way it interrupts the user. The amount of interruption that have to be made on the users primary task should be minimized. Usage without interruption is of course best for the performance of the primary task but is often not possible as many tasks that the wearable computer is involved in do need interaction with the user. It is therefore important to understand what type of interruption that will benefit the user most. The question about which interruption that causes the least amount of stress for the user is as important as which interruption that gives the best performance. This paper continues on previous work where performance of the users was measured for different types of interruption. In this paper subjective data is analyzed to understand how to build user interfaces for wearable computers and head mounted displays that considers stress and other subjective variables.

  • 31.
    Nilsson, Marcus
    et al.
    Luleå tekniska universitet.
    Hallberg, Josef
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Signaler och system.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Bluetooth positioning2002Ingår i: CSEE 2002: Second Annual Conference on Computer Science and Electrical Engineering, Luleå, Sweden May 27-28: Conference Proceedings, Luleå tekniska universitet, 2002Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    Research on positioning systems and context-aware applications are being performed in the Alipes project at CDT, Luleå University of Technology, Sweden. An evaluation of Bluetooth as a possible technology for positioning was performed during autumn of 2001 in this project. Proceeding the evaluation a Bluetooth based positioning system was implemented in order to complement the theoretical evaluation with empirical tests. Three different ways of positioning with Bluetooth have been developed for the Alipes project. With a registered positioning service a Bluetooth device has an active role in the positioning task as it sends a position on request. A Bluetooth device can also take a more passive role in a positioning task, which is when the unique address of the device is used by a connected device to look up a position in a database. It is also possible to forward a position gained from a positioning platform like Alipes over Bluetooth. This paper presents a Bluetooth positioning system where the three ways of positioning are implemented. The evaluation and conclusions of Bluetooth as a positioning source and how well Bluetooth performs in such a task are being discussed. To give support to the statements the implementation and tests are also presented.

  • 32.
    Nugent, Chris
    et al.
    University of Ulster.
    Davies, Richard
    University of Ulster.
    Hallberg, Josef
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Signaler och system.
    Donnelly, Mark
    University of Ulster.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Poland, Michael
    University of Ulster.
    Wallace, Jonathan
    University of Ulster.
    Finlay, Dewar
    University of Ulster.
    Mulvenna, Maurice
    University of Ulster.
    Craig, David
    Belfast City Hospital/Queen’s University of Belfast.
    HomeCI - a visual editor for healthcare professionals in the design of home based care2007Ingår i: 2007 annual international conference of the IEEE Engineering in Medicine and Biology Society: [EMBC '07] ; Lyon, France, 22 - 26 August 2007, IEEE Communications Society, 2007, 2787-2790 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    The demands of introducing more practical means of managing and monitoring technology within the home environment to support independent living are increasing. Within this paper we present a prototype solution referred to as HomeCI which allows healthcare professionals to establish the conditions within which technology in the home should operate. The HomeCI concept is based on the use of visual notation and has been designed for use by persons with a non technical background. Within the paper we present the design of the first version of the HomeCI visual editor and present the results of a usability study conducted on 4 healthcare professionals.

  • 33.
    Nugent, Chris
    et al.
    University of Ulster.
    Finlay, Dewar
    University of Ulster.
    Davies, Richard
    University of Ulster.
    Wang, Hui
    University of Ulster.
    Zheng, Huiru
    University of Ulster.
    Hallberg, Josef
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Signaler och system.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Mulvenna, Maurice
    University of Ulster.
    homeML - an open standard for the exchange of data within smart environments2007Ingår i: Pervasive Computing for Quality of Life Enhancement: 5th International Conference on Smart Homes and Health Telematics, ICOST 2007, Nara, Japan, June 21 - 23, 2007 ; proceedings / [ed] Takeshi Okadome; Tatsuya Yamazaki; Mounir Makhtari, Berlin: Encyclopedia of Global Archaeology/Springer Verlag, 2007, 121-129 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    This work describes a potential solution to the problems caused by the heterogeneous nature of the data which may be collected within smart home environments. Such information may be generated at an intra- or interinstitutional level following laboratory testing or based on in-situ evaluations. We offer a solution to this problem in the form of a system/application/format independent means of storing such data. This approach will inevitably support the exchange of data within the research community and form the basis of the establishment of an openly accessible data repository. Within this abstract we present the outline design of homeML, an XML based schema for representation of information within smart homes and through exemplars demonstrate the potential of such an approach. An example of the typical type of software browser required for the data representation is also presented.

  • 34.
    Nugent, Chris
    et al.
    University of Ulster.
    Hong, Xin
    University of Ulster.
    Hallberg, Josef
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Signaler och system.
    Finlay, Dewar
    University of Ulster.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Assessing the impact of individual sensor reliability within smart living environments2008Ingår i: IEEE International Conference onAutomation Science and Engineering: CASE 2008, Piscataway, NJ: IEEE Communications Society, 2008, 685-690 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    The potential of smart living environments to provide a form of independent living for the ageing population is becoming more recognised. These environments are comprised of sensors which are used to assess the state of the environment, some form of information management to process the sensor data and finally a suite of actuators which can be used to change the state of the environment. When providing a form of support which may impinge upon the well being of the end user it is essential that a high degree of reliability can be maintained. Within this paper we present an information management framework to process sensor based data within smart environments. Based on this framework we assess the impact of sensor reliability on the classification of activities of daily living. From this assessment we show how it is possible to identify which sensors within a given set of experiments can be considered to be the most critical and as such consider how this information may be used to propose a set of guidelines which may be adopted for managing sensor reliability from a practical point of view.

  • 35.
    Nugent, Chris
    et al.
    School of Computing and Mathematics, Ulster University.
    Synnott, Jonathan
    School of Computing and Mathematics, Ulster University .
    Celeste, Gabrielle
    Dipartimento dell’ingegneria dell’informazione, Universita Politecnica Delle Marche, Ancona, .
    Zhang, Shuai
    School of Computing and Mathematics, Ulster University.
    Espinella, Macarena
    Department of Computer Sciences, University of Jaen, .
    Calzada, Alberto
    School of Computing and Mathematics, Ulster University.
    Lundström, Jens
    Luleå tekniska universitet.
    Cleland, Ian
    School of Computing and Mathematics, Ulster University.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Hallberg, Josef
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Spinsante, Susanna
    Dipartimento dell’ingegneria dell’informazione, Universita Politecnica Delle Marche, Ancona.
    Ortiz Barrios, Miguel Angel
    Industrial Engineering Department, Universidad de La Costa CUC, Barranquilla, .
    Improving the Quality of User Generated Data Sets for Activity Recognition2016Ingår i: Ubiquitous Computing and Ambient Intelligence: 10th International Conference, UCAmI 2016, San Bartolomé de Tirajana, Gran Canaria, Spain, November 29 – December 2, 2016, Part II / [ed] Carmelo R. García, Pino Caballero-Gil, Mike Burmester, Alexis Quesada-Arencibia, Springer, 2016, Vol. 2, 104-110 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    It is fully appreciated that progress in the development of data driven approaches to activity recognition are being hampered due to the lack of large scale, high quality, annotated data sets. In an effort to address this the Open Data Initiative (ODI) was conceived as a potential solution for the creation of shared resources for the collection and sharing of open data sets. As part of this process, an analysis was undertaken of datasets collected using a smart environment simulation tool. A noticeable difference was found in the first 1–2 cycles of users generating data. Further analysis demonstrated the effects that this had on the development of activity recognition models with a decrease of performance for both support vector machine and decision tree based classifiers. The outcome of the study has led to the production of a strategy to ensure an initial training phase is considered prior to full scale collection of the data.

  • 36.
    Parnes, Peter
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Mattsson, Mattias
    Synnes, Kåre
    mWeb: a framework for distributed presentations using the WWW and the MBone1996Konferensbidrag (Refereegranskat)
    Abstract [en]

    This paper presents a framework for bringing the MBone and the World-Wide Web closer together by real-time distribution of HTML-pages and synchronization of WWW-browsers. This framework will allow for distributed presentations with WWW-material using the mWeb application. Distribution is done using two new protocols, Scalable Reliable Real-time Transport Protocol - SRRTP and Scalable Reliable File Distribution Protocol - SRFDP. Synchronization is achieved using the WebDesk Control Bus which allows for messaging in large groups of programs and hosts. This paper also presents how the mWeb application can be used for programmed presentations resulting in a television-like Web-TV. 1 Introduction The World-Wide Web (WWW) is today mostly used as a request application where the end-user tells a browser to fetch a page which is then displayed. Imagine instead your WWW-browser being used as a broadcast 1 receiver where the user tunes into a channel and starts watching the HTML-pages being d...

  • 37.
    Parnes, Peter
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Mattsson, Mattias
    Luleå tekniska universitet.
    Synnes, Kåre
    Schefström, Dick
    Luleå tekniska universitet.
    mMOD: the multicast Media-on-Demand system1997Konferensbidrag (Refereegranskat)
    Abstract [en]

    This paper presents the multicast Media-onDemand system, mMOD, which is an on-demand system designed for recording and playback of not only audio and video but also other media that are being multicast on the Internet/MBone today. The system allows for users to request playback of recorded sessions containing MBone audio, video, whiteboard, NetTextEditor, mWeb (a distributed HTML presentation system) or any other UDP-multicast distributed session. It also allows for random access within these recordings. The system include a Web-interface for starting and controlling running sessions. To compensate for jitter and out-of-order packets, sessions distributed in RTP-format (RFC1889), can be reconstructed with new time-stamps.

  • 38.
    Parnes, Peter
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Mattsson, Mattias
    Luleå University of Technology.
    Synnes, Kåre
    Schefström, Dick
    Luleå University of Technology.
    The mWeb presentation framework1997Ingår i: Computer networks and ISDN systems, ISSN 0169-7552, E-ISSN 1879-2324, Vol. 29, nr 8, 1083-1090 s.Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This paper presents a framework for bringing the MBone and the World-Wide web closer together by introducing real-time distribution of HTML-pages and synchronization of WWW-browsers. This framework will enable distributed presentations of WWW-material using the mWeb application. Distribution is done using two new protocols, scalable reliable real-time transport protocol-SRRTP and scalable reliable file distribution protocol-SRFDP. Synchronization is achieved using the WebDesk control bus, which allows for scalable messaging in large groups of programs and hosts. This paper also presents how the mWeb application can be used for programmed presentations resulting in a television-like Web-TV. The mWeb framework also includes support for creating HTML-slides and the usage of semantic remote-pointers.

  • 39.
    Parnes, Peter
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Mattsson, Mattias
    Synnes, Kåre
    Schefström, Dick
    The WebDesk framework architecture and design1997Konferensbidrag (Refereegranskat)
    Abstract [en]

    This paper presents an easy-to-use service creation platform for realization of applications handling real-time streams and data. This platform, called WebDesk, is implemented using the platform independent Java language. WebDesk includes an application-level network layer, called the Tunable Multicast Platform - /TMP which is presented, as well as a couple of applications exemplifying the usage of /TMP; the audio- and whiteboard-agents, and the mWeb-application. The mWeb is an application for scalable distribution of HTML-files and synchronization of web browsers.

  • 40.
    Parnes, Peter
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Schefström, Dick
    Synnes, Kåre
    WebDesk - Collaboration Support in MATES1996Ingår i: Proceedings of the European Workshop on Global Engineering Network, 1996Konferensbidrag (Refereegranskat)
    Abstract [en]

    Combining Messaging, Realtime Interaction and Publishing into the work environment of the future A paper the architecture and design of the WebDesk

  • 41.
    Parnes, Peter
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Schefström, Dick
    Synnes, Kåre
    Webdesk: the tele-conferencing service of mates1995Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    A paper describing early results of the WebDesk development within the Mates-project, Summer 1995. Presented at the Second International SMAC Workshop, November 1995.Also presented at BOF: Towards a Real-Time Multimedia Web, December 1995

  • 42.
    Parnes, Peter
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Synnes, Kåre
    Schefström, Dick
    Luleå tekniska universitet.
    A framework for management and control of distributed applications using agents and IP-multicast1999Ingår i: The future is now: proceedings / IEEE INFOCOM '99, the Conference on Computer Communications - Eighteenth Annual Joint Conference of the IEEE Computer and Communications Societies, 21 - 25 March 1999, Hotel Sheraton, New York, NY, USA, Piscataway, NJ: IEEE Communications Society, 1999, Vol. 3, 1445-1452 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    As more and more applications on the Internet become network aware the need and possibility to remotely control them becomes larger. This paper presents a framework for control and management of distributed applications and components. This is done using IP-multicast and an agent based application architecture. The target of the framework is to allow for resource discovery of both controllable elements and available control points in the these elements as well as real-time control. All this is done in scalable and secure way based on IP-multicast and asymmetric cryptography. The presented framework is also independent of the underlying transport mechanism to allow for flexibility and easy deployment. The framework bandwidth usage and introduced control delay is presented. Details on the reference implementation of the framework and example usage scenarios where the framework is used to create bandwidth adaptive applications and better group awareness is also presented. Keywords - IP-multicast, distributed management, control, secure messaging, reliable multicast, distributed applications, intelligent agents, quality of service management, Java I.

  • 43.
    Parnes, Peter
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Synnes, Kåre
    Schefström, Dick
    Luleå tekniska universitet.
    Lightweight application level multicast tunnelling using mTunnel1998Ingår i: Computer Communications, ISSN 0140-3664, E-ISSN 1873-703X, Vol. 21, nr 15, 1295-1301 s.Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This paper presents a system, named mTunnel, for application level tunnelling of IP-multicast traffic in a lightweight manner, where the end-user is responsible for deciding which MBone-sessions and which IP-multicast groups to tunnel. mTunnel is primarily designed for easy deployment and easy-to-manage tunnelling. Information about currently tunnelled sessions and control of mTunnel is provided through a Web-interface. To save bandwidth, tunnelled streams can be transcoded on the media level and traffic sent through the tunnel can be compressed by grouping several packets together and using statistical compression. The overall bandwidth reduction achieved, without modifying the media itself, has been measured to be between 5% and 14%, depending on the traffic and media type.

  • 44.
    Parnes, Peter
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Synnes, Kåre
    Schefström, Dick
    Luleå tekniska universitet.
    mSTAR: enabling collaborative applications on the Internet2000Ingår i: IEEE Internet Computing, ISSN 1089-7801, E-ISSN 1941-0131, Vol. 4, nr 5, 32-39 s.Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The mStar environment features an agent-based architecture, implemented in Java, which preserves compatibility with the dominant Mbone paradigm for IP multicast. In particular, mStar supports developers in creating distributed, real-time multimedia software applications such as e-meetings.

  • 45.
    Parnes, Peter
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Synnes, Kåre
    Schefström, Dick
    Luleå tekniska universitet.
    mTunnel: a multicast tunneling system with a user based quality-of-service model source1997Ingår i: PInteractive distributed multimedia systems and telecommunication services: 4th International Workshop, IDMS '97, Darmstadt, Germany, September 10-12, 1997 ; proceedings / [ed] Ralf Steinmetz, Berlin: Encyclopedia of Global Archaeology/Springer Verlag, 1997, 87-96 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    This paper presents a system, called mTunnel, for application level tunneling of multicast traffic in a lightweight manner, where the end-user is responsible for deciding which MBone-sessions and multicast groups to tunnel. mTunnel is primarily designed for easy deployment and easy-to-manage tunneling. Therefore it runs as an user application and does not need access to restricted system resources. Information about currently tunneled sessions and control of mTunnel is provided through a Web-interface. To allow the user to easily start tunneling of announced MBone-sessions, mTunnel listens for announcements and presents this information through the Web-interface. To save bandwidth, tunneled streams can be translated in four ways: audio streams can be recoded to an encoding that requires lower bandwidth, several audio streams can be mixed together, streams can be switched based on activity in another stream and streams can be scaled by dropping a certain percent of the traffic.

  • 46.
    Parnes, Peter
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Synnes, Kåre
    Schefström, Dick
    Luleå tekniska universitet.
    Real-time control and management of distributed applications using IP-multicast1999Ingår i: Integrated network management VI: distributed management for the networked millenium ; proceedings of the Sixth IFIP/IEEE International Symposium on Integrated Network Management, Boston, MA, U.S.A., 24 - 28 May 1999 / [ed] Morris Sloman; Subrata Mazumdar; Emil Lupu, Piscataway, NJ: IEEE Communications Society, 1999, 901-914 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    A central issue within any distributed computer environment is how to control and manage running applications. This paper presents an implementation of a framework for control and management of distributed applications and components using IP-multicast. The framework allows for easy and scalable control of single applications, groups of applications or parts of applications using a new agent-based architecture. Messaging is done using the control bus and the scalable reliable real-time transfer protocol for reliable distribution of data. The paper presents how this framework is integrated into Java-based applications and how developers specify access points. The paper also presents an application called multicast Manager, mManager, a Java implementation that provides a user interface to the framework. The mManager allows administrators to get an overview of currently running applications and if necessary control these applications. The paper presents example usage scenarios where the framework is used to create bandwidth-adaptive applications and better group awareness

  • 47.
    Parnes, Peter
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Synnes, Kåre
    Schefström, Dick
    Luleå tekniska universitet.
    The CDT mStar environment: Distributed Collaborative Teamwork in Action1997Ingår i: Proceedings of the international ACM SIGGROUP conference on Supporting group work: the integration challenge GROUP '97, Piscataway, NJ: IEEE Communications Society, 1997, 167-176 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    This paper presents the mStar environment, which creates an environment for truly scalable distributed teamwork It can be and is being used on a daily basis for electronic meetings, distributed electronic education and daily work It creates a new teamwork environment which allows users to collaborate even if they are not present at the same physical location. The mStar environment includes: the multicast WhiteBoard - mWB, which allows for collaborative reviewing of text and images; mChat, which allows for text based group chat; mVote, which allows for distributed voting and mWeb for shared WWW objects. These are all desktop and IP-multicast based and symmetric. The mStar environment also includes mMOD, which is a VCR-like tool for recording and playback of teamwork sessions, and mTunnel, which is an application for handling IP-multicast traffic on narrow links in the network (such as ISDN/modem) and network segments that does not support IP multicast. It allows for scaling and transforming of the network based data in various ways.

  • 48.
    Rana, Juwel
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Hallberg, Josef
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Signaler och system.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Kristiansson, Johan
    Ericsson.
    Harnessing the cloud for mobile social networking applications2012Ingår i: Evolving developments in grid and cloud computing: advancing research / [ed] Emmanuel Udoh, Hershey, Pa.: Information Science Reference, 2012, Vol. 2, nr 2Kapitel i bok, del av antologi (Refereegranskat)
    Abstract [en]

    The cloud computing model inherently enables information from social networking services (Twitter, Facebook, LinkedIn, etc), context-based systems (location, activity, interests, etc.) and personal applications (call logs, contacts, email, calendar, etc) to be harnessed for multiple purposes. This article presents an agent-based system architecture for semantic and semi-automated applications that utilize the cloud to enrich and simplify communication services, for instance by displaying presence information, prioritizing information, and dynamically managing groups of users. The proposed architecture is based on the concept of aggregated social graphs, which are created from harnessed information about how we communicate. This article also presents challenges in achieving the envisioned architecture and introduces early prototyping results.

  • 49.
    Rana, Juwel
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Hallberg, Josef
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Signaler och system.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Kristiansson, Johan
    Ericsson.
    Harnessing the cloud for mobile social networking applications2010Ingår i: International Journal of Grid and High Performance Computing, ISSN 1938-0259, Vol. 2, nr 2, 1-11 s.Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The cloud computing model inherently enables information from social networking services (Twitter, Facebook, LinkedIn, etc), context-based systems (location, activity, interests, etc.) and personal applications (call logs, contacts, email, calendar, etc) to be harnessed for multiple purposes. This article presents an agent-based system architecture for semantic and semi-automated applications that utilize the cloud to enrich and simplify communication services, for instance by displaying presence information, prioritizing information, and dynamically managing groups of users. The proposed architecture is based on the concept of aggregated social graphs, which are created from harnessed information about how we communicate. This article also presents challenges in achieving the envisioned architecture and introduces early prototyping results.

  • 50.
    Rana, Juwel
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    Kristiansson, Johan
    Hallberg, Josef
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Signaler och system.
    Synnes, Kåre
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.
    An architecture for mobile social networking applications2009Ingår i: 2009 First International Conference on Computational Intelligence, Modelling and Simulation, (CSSim 2009): Brno, Czech Republic, 7 - 9 September 2009 / [ed] Jiri Kunovský, Piscataway, NJ: IEEE Communications Society, 2009, 241-246 s.Konferensbidrag (Refereegranskat)
    Abstract [en]

    Mobile semantic Web provides a new way of developing context-aware social networking applications. Social networking applications are changing the way of communication by using userpsilas context-information. For example, micro-blogging has become a smart way of conveying the current situation and activity by using user context. There is currently a significant difference between using social networking applications on a static computer compared to a mobile device, even if current mobile devices are powerful and have good connectivity. The difference is primarily related to the mobility aspect since the user contexts may change more frequently and the user may not be able to interact with the mobile device. In this paper we identify common characteristics of current social networking applications and how they attract users. Finally, we propose an agent-based system architecture that is based on a distributed platform for developing semantic and semi-automated mobile social networking applications.

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