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XML is a markup language which is becoming the standard format for information representation and data exchange. A major purpose of XML is the explicit representation of the logical structure of a document. Much research has been performed to exploit logical structure of documents in information retrieval in order to precisely extract user information need from large collections of XML documents. In this paper, the authors describe an XML information retrieval weighting scheme that tries to find the most relevant elements in XML documents in response to a user query. They present this weighting model for information retrieval systems that utilize plausible inferences to infer the relevance of elements in XML documents.
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