165 search results - page 29 / 33 » Community discovery using nonnegative matrix factorization |
EDM
2010
14 years 11 months ago
2010
In this paper we present an evaluation of new techniques for automatically detecting sentiment polarity (Positive or Negative) in the students responses to Unit of Study Evaluation...
SIGIR
2008
ACM
14 years 9 months ago
2008
ACM
In most IR clustering problems, we directly cluster the documents, working in the document space, using cosine similarity between documents as the similarity measure. In many real...
BMCBI
2010
14 years 9 months ago
2010
Background: Extensive and automated data integration in bioinformatics facilitates the construction of large, complex biological networks. However, the challenge lies in the inter...
76
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JC
2007
14 years 9 months ago
2007
We study the complexity of approximating the smallest eigenvalue of −∆ + q with Dirichlet boundary conditions on the d-dimensional unit cube. Here ∆ is the Laplacian, and th...
112
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ISMIR
2005
Springer
15 years 2 months ago
2005
Springer
Source separation techniques like independent component analysis and the more recent non-negative matrix factorization are gaining widespread use for the monaural separation of in...