649 search results - page 39 / 130 » Improved and Optimized Partitioning Techniques in Database Q... |
133
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ICDE
2009
IEEE
14 years 11 months ago
2009
IEEE
Data provenance is information that describes how a given data item was produced. The provenance includes source and intermediate data as well as the transformations involved in pr...
126
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PPAM
2005
Springer
15 years 7 months ago
2005
Springer
Abstract. In this paper we deal with the problem of finding an optimal query execution plan in database systems. We improve the analysis of a polynomial-time approximation algorit...
215
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SIGMOD
2009
ACM
16 years 2 months ago
2009
ACM
The skyline operator returns from a set of multi-dimensional objects a subset of superior objects that are not dominated by others. This operation is considered very important in ...
KDD
1997
ACM
15 years 6 months ago
1997
ACM
An approach to defining actionability as a measure of interestingness of patterns is proposed. This approach is based on the concept of an action hierarchy which is defined as a t...
209
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GIS
2006
ACM
16 years 3 months ago
2006
ACM
Geography Markup Language (GML) is an XML-based language for the markup, storage, and exchange of geospatial data. It provides a rich geospatial vocabulary and allows flexible doc...