Answer Selection and Confidence Estimation
作者： Ana Licuanan , Jinxi Xu , Scott Miller , Jonathan May , Ralph M. Weischedel
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摘要: We describe BBN’s Question Answering work at TREC 2002. focus on two issues: answer selection and confidence estimation. found that some simple constraints the candidate answers can improve a pure IRbased technique for selection. also few features derived from question-answer pairs be used effective Our results confirmed earlie rf indings World-Wide Web is av ery useful r esource answering TREC-style factoid questions.
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