2492 search results - page 353 / 499 » Ontology-based Database Access |
165
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PODS
2005
ACM
16 years 6 months ago
2005
ACM
In order to protect individuals' privacy, the technique of kanonymization has been proposed to de-associate sensitive attributes from the corresponding identifiers. In this p...
187
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EDBT
2004
ACM
16 years 6 months ago
2004
ACM
Abstract. Hierarchical clustering has been proved an effective means for physically organizing large fact tables since it reduces significantly the I/O cost during ad hoc OLAP quer...
168
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EDBT
2006
ACM
16 years 6 months ago
2006
ACM
Nearest neighbor (NN) queries have been extended from Euclidean spaces to road networks. Existing approaches are either based on Dijkstra-like network expansion or NN/distance prec...
173
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EDBT
2006
ACM
16 years 6 months ago
2006
ACM
Abstract. Data stream systems execute a dynamic workload of longrunning and one-time queries, with the streaming inputs typically bounded by sliding windows. For efficiency, window...
140
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EDBT
2008
ACM
16 years 6 months ago
2008
ACM
To carry out work assignments, small groups distributed within a larger enterprise often need to share documents among themselves while shielding those documents from others'...