7150 search results - page 358 / 1430 » An Approximation Algorithm for Approximation Rank |
160
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SIGIR
2009
ACM
16 years 1 months ago
2009
ACM
Pseudo relevance feedback (PRF), which has been widely applied in IR, aims to derive a distribution from the top n pseudo relevant documents D. However, these documents are often ...
210
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ISCAS
2008
IEEE
16 years 1 months ago
2008
IEEE
— Non-negative matrix factorization (NMF), i.e. V ≈ WH where both V, W and H are non-negative has become a widely used blind source separation technique due to its part based r...
180
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CGI
1998
IEEE
15 years 11 months ago
1998
IEEE
Ray tracing and Monte-Carlo based global illumination, as well as radiosity and other finite-element based global illumination methods, all require repeated evaluation of quantita...
181
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JEA
2008
15 years 6 months ago
2008
As more and more genomes are sequenced, evolutionary biologists are becoming increasingly interested in evolution at the level of whole genomes, in scenarios in which the genome e...
156
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PAKDD
2005
ACM
16 years 7 days ago
2005
ACM
In many modern application ranges high-dimensional feature vectors are used to model complex real-world objects. Often these objects reside on different local sites. In this paper,...