964 search results - page 164 / 193 » Efficiently Ordering Query Plans for Data Integration |
226
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SIGMOD
2008
ACM
16 years 4 months ago
2008
ACM
A method for approximate subsequence matching is introduced, that significantly improves the efficiency of subsequence matching in large time series data sets under the dynamic ti...
238
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ICDE
2001
IEEE
16 years 5 months ago
2001
IEEE
Spatial Joins are important and time consuming operations in spatial database management systems. It is crucial to be able to accurately estimate the performance of these operatio...
152
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APSEC
2005
IEEE
15 years 10 months ago
2005
IEEE
Started in the beginning of 2001, the Semantic Web is regarded by many as the next generation of the Web. Ontology languages are the building blocks of Semantic Web as they provid...
143
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IJIIDS
2010
14 years 11 months ago
2010
Abstract. This paper presents the semantics of database mappings in the relational database (DB) category, based on the power-view monad T and monadic algebras. The semantics can b...
132
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VLDB
2004
ACM
15 years 9 months ago
2004
ACM
Traditional databases have focused on the issue of reducing I/O cost as it is the bottleneck in many operations. As databases become increasingly accepted in areas such as Geograp...