2724 search results - page 316 / 545 » Optimizing Queries on Files |
129
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GIS
2010
ACM
15 years 2 months ago
2010
ACM
This paper proposes an efficient, decentralized algorithm for determining the topological relationship between two regions monitored by a geosensor network. Many centralized algo...
227
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ICDE
2005
IEEE
16 years 5 months ago
2005
IEEE
Sequence-based XML indexing aims at avoiding expensive join operations in query processing. It transforms structured XML data into sequences so that a structured query can be answ...
147
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SSDBM
2006
IEEE
15 years 10 months ago
2006
IEEE
XML has become the standard for data exchange for a wide variety of applications, particularly in the scientific community. In order to efficiently process queries on XML repres...
135
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VLDB
2004
ACM
15 years 9 months ago
2004
ACM
The use of inaccurate or outdated database statistics by the query optimizer in a relational DBMS often results in a poor choice of query execution plans and hence unacceptably lo...
263
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SIGIR
2011
ACM
14 years 6 months ago
2011
ACM
Large search engines process thousands of queries per second over billions of documents, making query processing a major performance bottleneck. An important class of optimization...