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Challenges and Opportunities for Context-Aware Retrieval on Mobile Devices

The development of wireless computer networks and powerful mobile computing devices is creating opportunities to introduce mobile information retrieval applications. Information retrieval has traditionally concentrated on desk-based computing systems. Mobile users are in a different environment which requires careful analysis of their information needs and the HCI issues of mobile computing devices. The availability of user context information in mobile environments can assist the satisfaction of user information needs, but also provides exciting new opportunities for information access applications. Exploiting context information to best advantage requires the analysis of existing information retrieval methods and development of novel techniques. Evaluating standard information retrieval systems has been the focus of much work, extending existing evaluation frameworks to mobile and context-aware retrieval applications will be an important component of establishing the effectiveness of new techniques for general and task specific context-aware applica-