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130
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COMPGEOM
2009
ACM
15 years 10 months ago
2009
ACM
We study the problem of computing zigzag persistence of a sequence of homology groups and study a particular sequence derived from the levelsets of a real-valued function on a top...
130
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COMPGEOM
2009
ACM
15 years 10 months ago
2009
ACM
We describe the first algorithms to compute minimum cuts in surface-embedded graphs in near-linear time. Given an undirected graph embedded on an orientable surface of genus g, w...
118
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GLOBECOM
2008
IEEE
15 years 10 months ago
2008
IEEE
— We consider beamforming in a cognitive network with multiple primary users and secondary users sharing the same spectrum. In particular, we assume that each secondary transmitt...
121
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ICC
2008
IEEE
15 years 10 months ago
2008
IEEE
Abstract— Joint eigenvalue distribution of the noncentral complex Wishart matrix, i.e. HH∗ where H is the nonzero-mean complex Gaussian random channel matrix of a multiple-inpu...
140
Voted
ICDM
2008
IEEE
15 years 10 months ago
2008
IEEE
Nonnegative Matrix Factorization (NMF) is a dimension reduction method that has been widely used for various tasks including text mining, pattern analysis, clustering, and cancer ...