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|Title:||Semantic P2P overlay for dynamic context lookup||Authors:||Sen, S.
Semantic peer-to-peer overlays
|Issue Date:||2010||Citation:||Sen, S.,Pung, H.K.,Wong, W.C.,Xue, W. (2010). Semantic P2P overlay for dynamic context lookup. UBICOMM 2010 - 4th International Conference on Mobile Ubiquitous Computing, Systems, Services and Technologies : 464-470. ScholarBank@NUS Repository.||Abstract:||Context-aware applications generally need to retrieve various kinds of dynamic context data from a large number of context sources. A middleware managing context sources must provide an efficient context lookup mechanism to ease application development. In this paper, we categorize the context sources as operating spaces and propose semantic peerto- peer overlays over these spaces to accelerate dynamic context lookup in a context-aware middleware. Our proposed overlay structure is specially designed to deal with dynamic sensory context such as a person's location and temperature that are frequently changing and difficult to be promptly retrieved using traditional peer-to-peer protocols. Our overlay and indexing method has a low maintenance overhead. Measurement results show that the proposed overlay achieves a good response time and accuracy for context lookup as well as requires low maintenance overhead. © (2010) by International Academy, Research, and Industry Association (IARIA).||Source Title:||UBICOMM 2010 - 4th International Conference on Mobile Ubiquitous Computing, Systems, Services and Technologies||URI:||http://scholarbank.nus.edu.sg/handle/10635/71742||ISBN:||9781612081007|
|Appears in Collections:||Staff Publications|
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