| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide assistance to users in refining their search queries into more narrowly defined queries, so as to produce search results closer to their liking.SOLUTION: A received query is processed so as to generate an initial group of ranked documents corresponding to the received query. Each document in all or a portion of the documents in the initial group of ranked documents is associated with a corresponding set of ranked candidate terms such that each candidate term in the corresponding set of ranked candidate terms is embedded within the document. Each set of ranked candidate terms is identified at a time prior to the processing of the received query. In accordance with a selection function, a subset of the candidate terms in one or more of the sets of candidate terms is selected. In response to the received query, the initial group of ranked documents and the subset of candidate terms are presented.</p> |
