Context-Aware Computing

13Context-Based Information Refinding

Abstract: Refinding what one has seen or used before is a common behavior in real life. Psychological studies show that context under which information was accessed can serve as a powerful cue for information recall. “Finding the sweet recipe that I read at the hotel on the trip to Africa last year” and “Revisit the website which I visited last month and that website describes the regulations of behaviors in micro-blog” are two context-based refinding request examples. From request formulation, query target, to result evaluation, such kind of context-based recall querying differs from the traditional content-based database querying. After a comprehensive overview of information refinding techniques and tools ...