Abstract:Question answering is one of the research hotspots in information retrieval and natural language understanding.This paper summarizes the up-to-date research advances in open-domain question answering,...Question answering is one of the research hotspots in information retrieval and natural language understanding.This paper summarizes the up-to-date research advances in open-domain question answering,compares the different approaches in question analysis,document and passage retrieval,answer extraction according to different question types.The shortcomings of state-of-art techniques are also discussed,and further research directions for question answering are analyzed and prospected at last.Read More
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
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Cited By Count: 3
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