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132
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BMCBI
2006
15 years 3 months ago
2006
Background: Expression array data are used to predict biological functions of uncharacterized genes by comparing their expression profiles to those of characterized genes. While b...
137
Voted
SIAMSC
2008
15 years 3 months ago
2008
In this study, nonnegative matrix factorization is recast as the problem of approximating a polytope on the probability simplex by another polytope with fewer facets. Working on th...
173
Voted
SIGIR
2012
ACM
13 years 6 months ago
2012
ACM
In crowdsourced relevance judging, each crowd worker typically judges only a small number of examples, yielding a sparse and imbalanced set of judgments in which relatively few wo...
110
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WWW
2005
ACM
16 years 4 months ago
2005
ACM
This paper shows how a corpus of instant messages can be employed to detect de facto communities of practice automatically. A novel algorithm based on the concept of Edge Stress F...
127
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ICMCS
2006
IEEE
15 years 9 months ago
2006
IEEE
We present a new scheme for digital watermarking and secure copyright protection of digital images using nonnegative matrix factorization and singular value decomposition approach...