Change search
ReferencesLink to record
Permanent link

Direct link
Distributed Immersive Participation: Realising Multi-Criteria Context-Centric Relationships on an Internet of Things
Stockholm University, Faculty of Social Sciences, Department of Computer and Systems Sciences. (Immersive Participation)
2014 (English)Doctoral thesis, monograph (Other academic)
Abstract [en]

Advances in Internet-of-Things integrate sensors and actuators in everyday items or even people transforming our society at an accelerated pace. This occurs in areas such as agriculture, logistics, transport, healthcare, and smart cities and has created new ways to interact with and experience entertainment, (serious) games, education, etc. Common to these domains is the challenge to realize and maintain complex relations with any object or individual globally, with the requirement for immediacy in maintaining relations of varying complexity. Existing architectures for maintaining relations on the Internet, e.g., DNS and search engines are insufficient in meeting these challenges. Their deficiencies mandate the research presented in this dissertation enabling the maintenance of dynamic and multi-criteria relationships among entities in real-time in an Internet-of-Things while minimizing the overall cost for maintaining such context-centric relationships. A second challenge is the need to represent nearness in context-centric relationships, since solutions need to build on what is closely related.

The dissertation shows that the proximity on relations can be used to bring about the scalability of maintaining relationships across the IoT. It successfully demonstrates the concept and feasibility of self-organizing context-centric overlay networks for maintaining scalable and real-time relationships between endpoints co-located with associated physical entities. This is complemented by an object model for annotating objects and their relationships as derived and defined over the underpinning context interactions. Complementing measures of nearness are added through a non-metric multi-criteria approach to evaluating the notion of context proximity. A query language and an extension to the publish-subscribe approaches achieves distributed support for discovering such relationships; locating entities relative to a defined hyper-sphere of interest. Furthermore, it introduces adaptive algorithms for maintaining such relationships at minimal overall costs. The results demonstrate the feasibility of moving towards context-centric approaches to immersion and that such approaches are realizable over vast and distributed heterogeneous collections of user and their associated context information.

Place, publisher, year, edition, pages
Stockholm: Department of Computer and Systems Sciences, Stockholm University , 2014. , 144 p.
Keyword [en]
pervasive computing, ubiquitous computing, mediasense, context, context awareness, context centric, peer-to-peer, immersive participation, multi-criteria context, context proximity, context distance, evolving context, context-aware query languages, publish.subscribe, distributed context awareness, sensor information, context information, context models, context relationships, context relations
National Category
Information Systems
Research subject
Computer and Systems Sciences
URN: urn:nbn:se:su:diva-107449ISBN: 978-91-7447-987-4OAI: diva2:747130
Public defence
2014-11-03, Lilla hörsalen, NOD-huset, Borgarfjordsgatan 12, Kista, 13:00 (English)
EU, FP7, Seventh Framework Programme
Available from: 2014-10-13 Created: 2014-09-15 Last updated: 2014-11-18Bibliographically approved

Open Access in DiVA

fulltext(2224 kB)431 downloads
File information
File name FULLTEXT01.pdfFile size 2224 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Walters, Jamie
By organisation
Department of Computer and Systems Sciences
Information Systems

Search outside of DiVA

GoogleGoogle Scholar
Total: 431 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 277 hits
ReferencesLink to record
Permanent link

Direct link