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The MediaSense Framework
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media. (SensibleReality, SensorBasedServices)
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media. (SensibleReality)
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media. (SensibleReality)
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media. (SensibleReality)ORCID iD: 0000-0002-1342-0966
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2009 (English)In: Proceedings - 2009 4th International Conference on Digital Telecommunications, ICDT 2009, New York: IEEE conference proceedings, 2009, p. 144-147Conference paper, Published paper (Refereed)
Abstract [en]

Mobile telecommunication is evolving rapidly. People no longer only communicate with each other regardless of time and place, but also share other information that is important for tasks with which they are involved. In response to this growing trend the MediaSense framework addresses the intelligent delivery of any information to any host, anywhere, based on context-aware information regarding personal preferences, presence information, and sensor values. This includes another challenge to achieve seamless delivery, especially of multimedia content, and multimodal services via heterogeneous connections.

Place, publisher, year, edition, pages
New York: IEEE conference proceedings, 2009. p. 144-147
National Category
Computer Sciences
Identifiers
URN: urn:nbn:se:miun:diva-9662DOI: 10.1109/ICDT.2009.34ISI: 000274805500029Scopus ID: 2-s2.0-70449561027ISBN: 978-0-7695-3695-8 (print)OAI: oai:DiVA.org:miun-9662DiVA, id: diva2:235607
Conference
2009 4th International Conference on Digital Telecommunications, ICDT 2009; Colmar; 20 July 2009 through 25 July 2009
Projects
MediaSenseAvailable from: 2009-09-17 Created: 2009-09-17 Last updated: 2018-01-13Bibliographically approved
In thesis
1. Enabling Adaptive Context Views for Mobile Applications: Negotiating Global and Dynamic Sensor Information
Open this publication in new window or tab >>Enabling Adaptive Context Views for Mobile Applications: Negotiating Global and Dynamic Sensor Information
2011 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Mobile devices with Internet access and large amounts of sensors, pushes the development of intelligent services towards new forms of pervasive applications. These applications are made context-aware by utilizing information from sensors and hence the context of a situation, in order to provide a better service. Based on this, the focus of this thesis is on the challenge of creating context awareness in mobile applications. That both utilizes dynamic context information from globally available sensors and provides adaptive views of relevant context information to applications.

The first challenge is to identify the properties of an architecture that provides scalable access to information from global sensors within bounded time, because existing systems do not support these properties in a satisfactory manner. The majority of related systems employ a centralized approach with limited support for global sensor information due to poor scalability. Therefore, this thesis proposes a distributed architecture capable of exchanging context between users and entities on a peer-to-peer overlay. Pervasive applications can thus utilize global sensor information in a scalable and manageable way within predictable time bounds.

The second challenge to support continually changing and evolving context information, while providing it as both adaptive and manageable views to applications. To address this particular problem, this thesis proposes the usage of a locally stored evolving context object called a context schema. In detail, this schema contains all context information that is considered as being relevant for a specific user or entity. Furthermore, this thesis proposes an application interface that can provide snapshots of the evolving context schemas as adaptive views. These views can then be used in context-aware mobile applications, without inducing unnecessary delays.

By successfully addressing the challenges, this thesis enables the creation of pervasive and adaptive applications that utilize evolving context in mobile environments. These capabilities are made possible by enabling access to global sensor information based on a distributed context exchange overlay, in combination with evolving context schemas offered as views through an application interface. In support of these claims, this thesis has developed numerous proof-of-concept applications and prototypes to verify the approach. Hence, this thesis concludes that the proposed approach with evolving context information has the ability to scale in a satisfactory manner and also has the ability to dynamically offer relevant views to applications in a manageable way.

Place, publisher, year, edition, pages
Sundsvall: Mittuniversitetet, 2011. p. 68
Series
Mid Sweden University licentiate thesis, ISSN 1652-8948 ; 58
Keywords
Context, Sensors, Mobile applications
National Category
Computer Sciences
Identifiers
urn:nbn:se:miun:diva-13919 (URN)STC (Local ID)978-91-86694-36-4 (ISBN)STC (Archive number)STC (OAI)
Opponent
Supervisors
Projects
MediaSense
Available from: 2011-06-03 Created: 2011-06-03 Last updated: 2018-01-12Bibliographically approved

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Kanter, TheoÖsterberg, PatrikWalters, JamieKardeby, VictorForsström, StefanPettersson, Stefan

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