515 search results - page 52 / 103 » Query Decomposition, Optimization and Processing in Multidat... |
165
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ICDE
2008
IEEE
15 years 11 months ago
2008
IEEE
Data sources on the web are often accessible through web interfaces that present them as relational tables, but require certain attributes to be mandatorily selected, e.g., via a w...
CIKM
2011
Springer
13 years 9 months ago
2011
Springer
A fundamental problem related to RDF query processing is selectivity estimation, which is crucial to query optimization for determining a join order of RDF triple patterns. In thi...
100
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SIGMOD
2006
ACM
15 years 3 months ago
2006
ACM
Although approximate query processing is a prominent way to cope with the requirements of data analysis applications, current database systems do not provide integrated and compre...
SIGMOD
2000
ACM
15 years 2 months ago
2000
ACM
We present MOCHA, a new self-extensible database middleware system designed to interconnect distributed data sources. MOCHA is designed to scale to large environments and is based...
PR
2006
14 years 9 months ago
2006
Performance evaluation of content-based image retrieval (CBIR) systems is an important but still unsolved problem. The reason for its importance is that only performance evaluatio...