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Content adaptation is an important technique for mobile devices. Existing content adaptation systems have been developed with specific adaptation goals. In this paper, we present an extensible content adaptation system, Xadaptor. We take a rule-based approach to facilitate extensible, systematic, and adaptive content adaptation. It integrates adaptation mechanisms for various content types and organizes them into the rule base. Rules are invoked based on the individual client information. We classify HTML page objects into structure, content, and pointer objects. Existing content adaptation techniques mainly focus on content objects and do not consider adaptation for structure and pointer objects. In Xadaptor, novel adaptation techniques for the structure object HTML table have been developed. We use fuzzy logic to model the adaptation quality and guide the adaptation decision. To demonstrate the feasibility of our approach, we have implemented a prototype system. Experimental studies show that Xadaptor is capable of on-the-fly content adaptation and is easily extensible.
Application-aware adaptation, rule-based processing, fuzzy and uncertainty, Web browsers.

I. Yen, J. He, F. Bastani, T. Gao and W. Hao, "A Flexible Content Adaptation System Using a Rule-Based Approach," in IEEE Transactions on Knowledge & Data Engineering, vol. 19, no. , pp. 127-140, 2007.
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