27756 search results - page 214 / 5552 » Process Query Systems |
125
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CIKM
2009
Springer
15 years 6 months ago
2009
Springer
While provenance has been extensively studied in the literature, the efficient evaluation of provenance queries remains an open problem. Traditional query optimization techniques...
125
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VLDB
1995
ACM
15 years 6 months ago
1995
ACM
In this paper we introduce generalized projections (GPs), an extension of duplicateeliminating projections, that capture aggregations, groupbys, duplicate-eliminating projections ...
110
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VLDB
1997
ACM
15 years 7 months ago
1997
ACM
Information integration systems have to cope with the different and limited query interfaces of the underlying information sources. First, the integration systems need description...
147
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EDBTW
2004
Springer
15 years 8 months ago
2004
Springer
In this paper we propose a method that, given a query submitted to a search engine, suggests a list of related queries. The related queries are based in previously issued queries, ...
127
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SAC
2006
ACM
15 years 9 months ago
2006
ACM
Structured data and complex schemas are becoming the main way to represent the information many Digital Libraries provide, thus impacting the services they offer. When searching i...