27756 search results - page 405 / 5552 » Process Query Systems |
141
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SIGMOD
1999
ACM
15 years 9 months ago
1999
ACM
In this paper we present a mechanism for translating constraint queries, i.e., Boolean expressions of constraints, across heterogeneous information sources. Integrating such syste...
143
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MFCS
2009
Springer
15 years 11 months ago
2009
Springer
We study visibly pushdown automata (VPA) models for expressing and evaluating queries, expressed using MSO formulas, on words with a nesting structure (like XML documents). We deï...
116
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WAIM
2004
Springer
15 years 10 months ago
2004
Springer
A top-N selection query against a relation is to find the N tuples that satisfy the query condition the best but not necessarily completely. In this paper, we propose a new method ...
130
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GPCE
2008
Springer
15 years 5 months ago
2008
Springer
High-level query constructs help greatly improve the clarity of programs and the productivity of programmers, and are being introduced to increasingly more languages. However, the...
144
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IJIRR
2011
14 years 11 months ago
2011
— recently, search engines become more critical for finding information over the World Wide Web where web content growing fast, the user's satisfaction of search engine resu...