522 search results - page 39 / 105 » Feature selection for ranking using boosted trees |
104
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EMNLP
2009
14 years 9 months ago
2009
We present a framework to extract the most important features (tree fragments) from a Tree Kernel (TK) space according to their importance in the target kernelbased machine, e.g. ...
102
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SEMWEB
2010
Springer
14 years 9 months ago
2010
Springer
Abstract. In order to effectively and quickly answer queries in environments with distributed RDF/OWL, we present a query optimization algorithm to identify the potentially relevan...
114
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BMCBI
2010
14 years 12 months ago
2010
Background: The receiver operating characteristic (ROC) curve is a fundamental tool to assess the discriminant performance for not only a single marker but also a score function c...
CVPR
2001
IEEE
16 years 1 months ago
2001
IEEE
This paper describes a face detection approach via learning local features. The key idea is that local features, being manifested by a collection of pixels in a local region, are ...
ICCV
2005
IEEE
15 years 5 months ago
2005
IEEE
We present a novel categorical object detection scheme that uses only local contour-based features. A two-stage, partially supervised learning architecture is proposed: a rudiment...