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CORR
2008
Springer
13 years 10 months ago
2008
Springer
Nonnegative matrix factorization (NMF) was popularized as a tool for data mining by Lee and Seung in 1999. NMF attempts to approximate a matrix with nonnegative entries by a produ...
DAM
2008
13 years 10 months ago
2008
We present here a systematic study of general boundary value problems on weighted networks that includes the variational formulation of such problems. In particular, we obtain the...
ENTCS
2008
13 years 10 months ago
2008
Proofs of termination in term rewriting involve solving constraints between terms coming from (parts of) the rules of the term rewriting system. A common way to deal with such con...
FUIN
2008
13 years 10 months ago
2008
Abstract. Approximation of an image by the attractor evolved through iterations of a set of contractive maps is usually known as fractal image compression. The set of maps is calle...
FUIN
2006
13 years 10 months ago
2006
Sunspots are the subject of interest to many astronomers and solar physicists. Sunspot observation, analysis and classification form an important part of furthering the knowledge a...