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ICA
2007
Springer

182views Signal Processing» more ICA 2007»

Dictionary Learning for L1-Exact Sparse Coding

14 years 2 months ago

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We have derived a new algorithm for dictionary learning for sparse coding in the ℓ1 exact sparse framework. The algorithm does not rely on an approximation residual to operate, b...

Mark D. Plumbley

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ICANN
2007
Springer

103views Neural Networks» more ICANN 2007»

Selection of Basis Functions Guided by the L2 Soft Margin

14 years 2 months ago

Download www.lsi.upc.edu

Support Vector Machines (SVMs) for classiﬁcation tasks produce sparse models by maximizing the margin. Two limitations of this technique are considered in this work: ﬁrstly, th...

Ignacio Barrio, Enrique Romero, Lluís Belan...

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FOCS
2006
IEEE

136views Theoretical Computer Science» more FOCS 2006»

Planar Earthmover is not in L_1

14 years 2 months ago