3499 search results - page 461 / 700 » On the local optimality of LambdaRank |
174
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ICML
2006
IEEE
16 years 7 months ago
2006
IEEE
We consider the problem of clustering in its most basic form where only a local metric on the data space is given. No parametric statistical model is assumed, and the number of cl...
185
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ICML
2003
IEEE
16 years 7 months ago
2003
IEEE
In this paper, we address the problem of finding the pre-image of a feature vector in the feature space induced by a kernel. This is of central importance in some kernel applicatio...
185
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ICML
2003
IEEE
16 years 7 months ago
2003
IEEE
We study the common problem of approximating a target matrix with a matrix of lower rank. We provide a simple and efficient (EM) algorithm for solving weighted low-rank approximat...
163
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ICML
2000
IEEE
16 years 7 months ago
2000
IEEE
This paper discusses theoretical and experimental aspects of gradient-based approaches to the direct optimization of policy performance in controlled ??? ?s. We introduce ??? ?, a...
175
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ISBI
2004
IEEE
16 years 7 months ago
2004
IEEE
In this contribution we introduce adaptive finite element methods for forward modeling in fluorescence optical tomography. Adaptive local mesh refinement increases the accuracy of...