Keywords: context-aware, information systems, user participation, proactivity, Web 20, information services, tagging
Proactive information service through user participation in context-aware application
User participation is an essential aspect of Web 2.0. Web 2.0 creates a context-aware interactive environment that supports the participation of users to enhance information service. Tagging is a key participation method by which users can enrich information in Web 2.0. The authors present a proactive information service through user participation in context-aware application. The proposed method uses participation information acquired in user's contexts. Using user participation from contexts, the method provides useful information in a timely manner. The information service considers contexts as the tag and provides information that may be useful without requiring any action on the part of the user.