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METHOD FOR USING DUAL INDICES TO SUPPORT QUERY EXPANSION, RELEVANCE/NON-RELEVANCE MODELS, BLIND/RELEVANCE FEEDBACK AND AN INTELLIGENT SEARCH INTERFACE
METHOD FOR USING DUAL INDICES TO SUPPORT QUERY EXPANSION, RELEVANCE/NON-RELEVANCE MODELS, BLIND/RELEVANCE FEEDBACK AND AN INTELLIGENT SEARCH INTERFACE
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机译：使用双索引支持查询扩展，相关/非相关模型，盲/相关反馈和智能搜索界面的方法
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摘要
A method for using dual indices to support query expansion, relevance/non-relevance models, blind/relevance feedback and an intelligent search interface, the method comprising: accessing an inverted index to obtain an initial retrieval of results in response to a query, and to generate a rank list of the results, the results referring to information units (IUs) where the query occurs; and determining a number of “N” IUs in the results that are assumed to be relevant by accessing a forward index; wherein the forward index and inverted index have pointers to locations in the IUs where terms of the query occur, and the forward index retrieves a term frequency vector of the IU or a set of contexts of the IU.
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