A model and an algebra for semi-structured and full-text queries

Buratti, Giacomo (2007) A model and an algebra for semi-structured and full-text queries, [Dissertation thesis], Alma Mater Studiorum Università di Bologna. Dottorato di ricerca in Informatica, 19 Ciclo. DOI 10.6092/unibo/amsdottorato/366.
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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 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.

Abstract
Tipologia del documento
Tesi di dottorato
Autore
Buratti, Giacomo
Supervisore
Dottorato di ricerca
Ciclo
19
Coordinatore
Settore disciplinare
Settore concorsuale
Parole chiave
xml full-text data model algebra xquery
URN:NBN
DOI
10.6092/unibo/amsdottorato/366
Data di discussione
16 Aprile 2007
URI

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