Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/71742
Title: Semantic P2P overlay for dynamic context lookup
Authors: Sen, S.
Pung, H.K. 
Wong, W.C. 
Xue, W.
Keywords: Context-aware middleware
Context-awareness
Operating spaces
Semantic peer-to-peer overlays
Issue Date: 2010
Source: 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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