4557 search results - page 523 / 912 » A performance evaluation of local descriptors |
145
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WWW
2008
ACM
16 years 7 months ago
2008
ACM
In this paper, we formalize the problem of Basic Graph Pattern (BGP) optimization for SPARQL queries and main memory graph implementations of RDF data. We define and analyze the c...
145
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WWW
2006
ACM
16 years 7 months ago
2006
ACM
We introduce and evaluate a middleware clustering technology capable of allocating resources to web applications through dynamic application instance placement. We define applicat...
163
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WWW
2005
ACM
16 years 7 months ago
2005
ACM
We consider the problem of finding duplicates in data streams. Duplicate detection in data streams is utilized in various applications including fraud detection. We develop a solu...
185
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WWW
2005
ACM
16 years 7 months ago
2005
ACM
Finding all the occurrences of a twig pattern in an XML database is a core operation for efficient evaluation of XML queries. A number of algorithms have been proposed to process ...
207
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WWW
2004
ACM
16 years 7 months ago
2004
ACM
Mining user access patterns from a continuous stream of Web-clicks presents new challenges over traditional Web usage mining in a large static Web-click database. Modeling user ac...