Abstract

The heterogeneous Web exacerbates IR problems and short user queries make them worse. The contents of web documents are not enough to find good answer documents. Link information and URL information compensates for the insu \#ciencies of content information. However, static combination of multiple evidences may lower the retrieval performance. We need di\#erent strategies to find target documents according to a query type. We can classify user queries as three categories, the topic relevance...

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