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- W2187444827 abstract "The need for a convergence between semi-structured data management and Information Retrieval techniques is manifest to the scientific community. In order to fulfil this growing request, W3C has recently proposed XQuery Full Text, an IR-oriented extension of XQuery. However, the issue of query optimization requires the study of important properties like query equivalence and containment; to this aim, a formal representation of document and queries is needed. The goal of this thesis is to establish such a formal background. We define a data model for XML documents and propose an algebra able to represent most of XQuery Full-Text expressions. We show how an XQuery Full-Text expression can be translated into an algebraic expression and how an algebraic expression can be optimized. 1. Dipartimento di Scienze dell’Informazione, University of Bologna, Via Mura Anteo Zamboni, 7, 40127 Bologna, Italy. E-mail: {buratti}@cs.unibo.it" @default.
- W2187444827 created "2016-06-24" @default.
- W2187444827 creator A5023618746 @default.
- W2187444827 date "2007-01-01" @default.
- W2187444827 modified "2023-09-27" @default.
- W2187444827 title "A Model and an Algebra for Semi-Structured and Full-Text Queries (Ph.D. Thesis)" @default.
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