339 search results - page 51 / 68 » Improved Query Performance with Variant Indexes |
MCAM
2007
Springer
15 years 4 months ago
2007
Springer
Existing Web image search engines index images by textual descriptions including filename, image caption, surrounding text, etc. However, the textual description available on the W...
106
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SIGMOD
2010
ACM
14 years 4 months ago
2010
ACM
We propose and study a new ranking problem in versioned databases. Consider a database of versioned objects which have different valid instances along a history (e.g., documents i...
VLDB
2000
ACM
15 years 1 months ago
2000
ACM
Multidimensional access methods have shown high potential for significant performance improvements in various application domains. However, only few approaches have made their way...
157
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SIGMOD
2005
ACM
15 years 10 months ago
2005
ACM
We are witnessing an explosive increase in the complexity of the information systems we rely upon. Autonomic systems address this challenge by continuously configuring and tuning ...
CIKM
2007
Springer
15 years 4 months ago
2007
Springer
It has been shown that using phrases properly in the document retrieval leads to higher retrieval effectiveness. In this paper, we define four types of noun phrases and present an...