349 search results - page 62 / 70 » Query Rewriting for Semistructured Data |
109
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AIMSA
2010
Springer
15 years 1 months ago
2010
Springer
Abstract. Ontology based data access (OBDA) is concerned with providing access to typically very large data sources through a mediating conceptual layer that allows one to improve ...
114
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DKE
2008
14 years 11 months ago
2008
The availability of large amounts of heterogeneous distributed web data necessitates the integration of XML data from multiple XML sources for many reasons. For example, currently,...
122
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JODS
2006
14 years 11 months ago
2006
This paper addresses the various facets of emergent semantics in content retrieval systems such as Knowledge Sifter, an architecture and system based on the use of specialized agen...
VLDB
1987
ACM
15 years 3 months ago
1987
ACM
Severalmethodshavebeenproposedto compile recursive Datalog programs. The most well-known perform a rewriting of rules using MAGIC or PROBLEM predicates in order to push selections...
WWW
2008
ACM
16 years 12 days ago
2008
ACM
In this paper, we propose a new approach to automatically compose data providing Web services. Our approach exploits existing mature works done in data integration systems. Specif...