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Journal Article
Context-Aware Active Services in Ubiquitous Computing Environments
- Authors
- Ae Kyung Moon, Hyoung Sun Kim, Hyun Kim, Soowon Lee
- Issue Date
- 2007-04
- Citation
- ETRI Journal, v.29, no.2, pp.169-178
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- With the advent of ubiquitous computing environments, it has become increasingly important for applications to take full advantage of contextual information, such as the user's location, to offer greater services to the user without any explicit requests. In this paper, we propose context-aware active services based on context-aware middleware for URC systems (CAMUS). The CAMUS is a middleware that provides context-aware applications with a development and execution methodology. Accordingly, the applications based on CAMUS respond in a timely fashion to contextual information. This paper presents the system architecture of CAMUS and illustrates the content recommendation and control service agents with the properties, operations, and tasks for context-aware active services. To evaluate CAMUS, we apply the proposed active services to a TV application domain. We implement and experiment with a TV content recommendation service agent, a control service agent, and TV tasks based on CAMUS. The implemented content recommendation service agent divides the user's preferences into common and specific models to apply other recommendations and applications easily, including the TV content recommendations.
- KSP Keywords
- Active Services, Application domain, Context-aware middleware, Contextual information, Control service, Service agents, System architecture, Ubiquitous computing environment, User's Preference, content recommendation, context-aware applications