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Date: 2009-06-23 08:16:35Science Internet search Natural language processing Machine learning Web query classification Web search query Conditional random field Query expansion Document classification Information science Software Information retrieval | Context-Aware Query Classification ∗ 1 Huanhuan Cao1Add to Reading ListSource URL: research.microsoft.comDownload Document from Source WebsiteFile Size: 395,08 KBShare Document on Facebook |