Abstract
FACT (Fast and ACcuraTe) is a query processing system aimed at providing users with facilities so that they can get the query results from the Web in a database-like fashion. The system takes user queries in the form of keywords (free text) and returns segments of Web pages that contain the required information. It works as follows. The input from a user is passed to a general- purpose search engine to obtain a set of URLs of Web pages that may contain the required information. The system later locates the query results from the Web pages reachable from these URLs. Since queries expressed in keywords may be not able to express query requirements precisely or may not guarantee the discovery of required information inherently, the user is asked to first browse a few pages, during which the system learns from her/him about the exact query requirements and heuristics of finding the required information through a series of hyperlinks. The system will process the rest URLs and present the results in the form of segments of Web pages to the user.
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