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127
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JMLR
2010
14 years 9 months ago
2010
We present an extension of convex-hull non-negative matrix factorization (CH-NMF) which was recently proposed as a large scale variant of convex non-negative matrix factorization ...
121
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CORR
2011
Springer
14 years 6 months ago
2011
Springer
We establish the restricted isometry property for finite dimensional Gabor systems, that is, for families of time–frequency shifts of a randomly chosen window function. We show...
127
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WWW
2009
ACM
16 years 3 months ago
2009
ACM
We present the results of a community detection analysis of the Wikipedia graph. Distinct communities in Wikipedia contain semantically closely related articles. The central topic...
135
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AAAI
1993
15 years 3 months ago
1993
Many reported discovery systems build discrete models of hidden structure, properties, or processes in the diverse fields of biology, chemistry, and physics. We show that the sear...
110
Voted
ACL
1992
15 years 3 months ago
1992
Prosody can be useful in resolving certain lexical and structural ambiguities in spoken English. In this paper we present some results of employing two types of prosodic informati...