350 search results - page 47 / 70 » An optimization framework for map-reduce queries |
141
Voted
SIGIR
2012
ACM
13 years 2 months ago
2012
ACM
We propose a mathematical framework for query selection as a mechanism for reducing the cost of constructing information retrieval test collections. In particular, our mathematica...
122
Voted
CVPR
2001
IEEE
16 years 2 months ago
2001
IEEE
Learning-enhanced relevance feedback is one of the most promising and active research directions in recent year's content-based image retrieval. However, the existing approac...
103
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EDBT
2008
ACM
16 years 19 days ago
2008
ACM
Enterprises may have multiple database systems spread across the organization for redundancy or for serving different applications. In such systems, query workloads can be distrib...
100
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ICIP
2005
IEEE
15 years 6 months ago
2005
IEEE
This paper proposes a content-based medical image retrieval (CBMIR) framework using dynamically optimized features from multiple regions of medical images. These regional features...
114
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SIGMOD
2002
ACM
16 years 20 days ago
2002
ACM
This paper addresses the problem of evaluating ranked top-? queries with expensive predicates. As major DBMSs now all support expensive user-defined predicates for Boolean queries...