482 search results - page 38 / 97 » Selectivity Estimation in Spatial Databases |
182
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DEXAW
2007
IEEE
15 years 7 months ago
2007
IEEE
Due to the lack of efficient native XML database management systems, XML data manipulation and query evaluation may be resource-consuming, and represent a bottleneck for several ...
181
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ICDE
2012
IEEE
13 years 8 months ago
2012
IEEE
—On a stream of two dimensional data items (x, y) where x is an item identifier, and y is a numerical attribute, a correlated aggregate query requires us to first apply a selec...
158
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PKDD
2009
Springer
16 years 14 days ago
2009
Springer
Abstract. This paper presents a novel feature selection method for classification of high dimensional data, such as those produced by microarrays. It includes a partial supervisio...
155
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ADBIS
1999
Springer
15 years 10 months ago
1999
Springer
In data mining, the selection of an appropriate classifier to estimate the value of an unknown attribute for a new instance has an essential impact to the quality of the classifica...
158
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WWW
2010
ACM
16 years 24 days ago
2010
ACM
In this paper, we address the problem of database selection for XML document collections, that is, given a set of collections and a user query, how to rank the collections based o...