Effective Use of Semantic Structure in XML Retrieval

The objective of XML retrieval is to return relevant XML document fragments that answer a given user information need, by exploiting the document structure. The focus in this article is on automatically deriving and using semantic XML structure to enhance the retrieval performance of XML retrieval systems. Based on a naive approach for named entity detection, we discuss how the structure of an XML document can be enriched using the Reuters 21587 news collection. Based on a retrieval performance experiment, we study the effect of the additional semantic structure on the retrieval performance of our XSee search engine for XML documents. The experiment provides some initial evidence that an XML retrieval system significantly benefits from having meaningful XML structure.

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