7576 search results - page 1249 / 1516 » On Querying Ontologies and Databases |
179
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CIKM
2004
Springer
16 years 3 days ago
2004
Springer
The performance of web search engines may often deteriorate due to the diversity and noisy information contained within web pages. User click-through data can be used to introduce...
188
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DOLAP
2003
ACM
15 years 12 months ago
2003
ACM
The data cube operator exemplifies two of the most important aspects of OLAP queries: aggregation and dimension hierarchies. In earlier work we presented Dwarf, a highly compress...
193
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MM
2003
ACM
15 years 12 months ago
2003
ACM
This paper describes a novel methodology for implementing video search functions such as retrieval of near-duplicate videos and recognition of actions in surveillance video. Video...
182
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EDBT
2010
ACM
15 years 11 months ago
2010
ACM
The creation of a generic and modular query optimization and processing infrastructure can provide significant benefits to XML data management. Key pieces of such an infrastructur...
203
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DEXA
2000
Springer
15 years 11 months ago
2000
Springer
Abstract. Bitmap indices are popular multi-dimensional data structures for accessing read-mostly data such as data warehouse (DW) applications, decision support systems (DSS) and o...