2985 search results - page 301 / 597 » Indexing Distributed Complex Data for Complex Queries |
229
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SIGMOD
2003
ACM
16 years 6 months ago
2003
ACM
We consider the problem of efficiently producing ranked results for keyword search queries over hyperlinked XML documents. Evaluating keyword search queries over hierarchical XML ...
204
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PODS
2000
ACM
15 years 11 months ago
2000
ACM
We study the problem of auditing databases which support statistical sum queries to protect the security of sensitive information; we focus on the special case in which the sensit...
161
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VLDB
1987
ACM
15 years 10 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...
182
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DEBU
2000
15 years 6 months ago
2000
In a traditional information retrieval system, it is assumed that queries can be posed about any topic. In reality, a large fraction of web queries are posed about a relatively sm...
173
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DGO
2007
15 years 8 months ago
2007
Solving complex global problems such as illegal immigration, border control, and terrorism requires government organizations at all levels to share not only data but, more importa...