448 search results - page 29 / 90 » Directly optimizing evaluation measures in learning to rank |
117
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SIGIR
2012
ACM
13 years 4 days 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...
ATAL
2004
Springer
15 years 3 months ago
2004
Springer
This paper investigates a relatively new direction in Multiagent Reinforcement Learning. Most multiagent learning techniques focus on Nash equilibria as elements of both the learn...
106
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ICIP
2003
IEEE
15 years 11 months ago
2003
IEEE
We present algorithms for automatic feature selection for unsupervised structure discovery from video sequences. Feature selection in this scenario is hard because of the absence ...
104
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ICML
2004
IEEE
15 years 10 months ago
2004
IEEE
The problem of computing low rank approximations of matrices is considered. The novel aspect of our approach is that the low rank approximations are on a collection of matrices. W...
IPPS
2009
IEEE
15 years 4 months ago
2009
IEEE
Commonly represented as directed graphs, social networks depict relationships and behaviors among social entities such as people, groups, and organizations. Social network analysi...