Evaluating XML full text search

Methods and systems for improved query evaluation in computer systems are provided. A system receives a full text query for evaluation against a collection of XML documents. The query comprises specifies one or more tokens and one or more contexts. The contexts each represent a path within an XML ex...

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Hauptverfasser:	Liu, Zhen Hua, Chang, Hui Joe, Li, Ying
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING PHYSICS
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creator	Liu, Zhen Hua Chang, Hui Joe Li, Ying
description	Methods and systems for improved query evaluation in computer systems are provided. A system receives a full text query for evaluation against a collection of XML documents. The query comprises specifies one or more tokens and one or more contexts. The contexts each represent a path within an XML expression. The query is used to make multiple determinations. First, determining, using token lists, first documents that contain the tokens included in the query. Second, determining, using tag lists, second documents that contain the contexts included in the query. Third, determining third documents by comparing the first documents and the second documents to determine which documents contain both the tokens and the contexts. The query is then evaluated in view of the third documents.
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title	Evaluating XML full text search
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