522 search results - page 20 / 105 » Feature selection for ranking using boosted trees |
ICCV
2003
IEEE
16 years 1 months ago
2003
IEEE
This paper presents a method for evaluating multiple feature spaces while tracking, and for adjusting the set of features used to improve tracking performance. Our hypothesis is t...
115
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ICMCS
2010
IEEE
14 years 9 months ago
2010
IEEE
Existing research on news video analysis mainly concentrates on structure analysis, semantic concept detection, annotation and search. However, little work has been contributed to...
MCS
2007
Springer
15 years 5 months ago
2007
Springer
Selecting the optimal number of features in a classifier ensemble normally requires a validation set or cross-validation techniques. In this paper, feature ranking is combined with...
98
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ICASSP
2007
IEEE
15 years 6 months ago
2007
IEEE
In the paper we study the efficiency of semantic concept association in multimedia semantic concept detection. We present an approach to automatically learn from the corpus the as...
100
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IJCAI
2007
15 years 1 months ago
2007
While conditional random fields (CRFs) have been applied successfully in a variety of domains, their training remains a challenging task. In this paper, we introduce a novel trai...