Information Extraction and Retrieval - IIIT Hyderabad
Information Extraction and Retrieval - IIIT Hyderabad
Information Extraction and Retrieval - IIIT Hyderabad
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Basic approach to IR<br />
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Successful content-based approaches are statistical<br />
Rather than actual “underst<strong>and</strong>ing” of text<br />
Text underst<strong>and</strong>ing effectiveness is very poor<br />
• Exception: works better in some restricted domains<br />
IR statistics used in different ways<br />
Past/concurrent queries <strong>and</strong> relevance judgments<br />
• Collaborative systems<br />
Document <strong>and</strong> query similarities<br />
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