2145 search results - page 65 / 429 » Answering Queries Using Views |
122
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ADBIS
2005
Springer
15 years 8 months ago
2005
Springer
We present a formal analysis of the following view-selection problem: Given a set of queries and a database, return definitions of views that, when materialized in the database, w...
132
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ICDIM
2008
IEEE
15 years 9 months ago
2008
IEEE
Database Management Systems (DBMS) are complex software systems which are used in an increasing number of applications. To obtain the best performance for business relevant applic...
211
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VLDB
2007
ACM
16 years 2 months ago
2007
ACM
The performance of XML database queries can be greatly enhanced by rewriting them using materialized views. We study the problem of rewriting a query using materialized views, whe...
120
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ECML
2003
Springer
15 years 7 months ago
2003
Springer
Abstract. Distributed heterogeneous search environments are an emerging phenomenon in Web search, in which topic-specific search engines provide search services, and metasearchers...
117
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CIA
1998
Springer
15 years 6 months ago
1998
Springer
In a simple cooperative MAS model where a collection of "querying agents" can send queries to a collection of "information agents", we formalize the problem of ...