5954 search results - page 537 / 1191 » Querying Bi-level Information |
217
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SIGMOD
2003
ACM
16 years 7 months ago
2003
ACM
The learning-enhanced relevance feedback has been one of the most active research areas in content-based image retrieval in recent years. However, few methods using the relevance ...
177
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BTW
2005
Springer
16 years 23 days ago
2005
Springer
: Optimizers in modern DBMSs utilize a cost model to choose an efficient query execution plan (QEP) among all possible ones for a given query. The accuracy of the cost estimates de...
207
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VLDB
2004
ACM
16 years 16 days ago
2004
ACM
The use of inaccurate or outdated database statistics by the query optimizer in a relational DBMS often results in a poor choice of query execution plans and hence unacceptably lo...
191
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FQAS
1998
Springer
15 years 11 months ago
1998
Springer
Abstract. Many heterogeneous database system products and prototypes exist today; they will soon be deployed in a wide variety of environments. Most existing systems suffer from an...
217
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WWW
2009
ACM
16 years 7 months ago
2009
ACM
The majority of people in rural developing regions do not have access to the World Wide Web. Traditional network connectivity technologies have proven to be prohibitively expensiv...