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CSR
2008
Springer
15 years 5 months ago
Additive Preconditioning for Matrix Computations
Versus the customary preconditioners, our weakly random ones are generated more readily and for a much larger class of input matrices. Furthermore our preconditioners have a wider...
Victor Y. Pan, Dmitriy Ivolgin, Brian Murphy, Rhys...
COLT
2007
Springer
15 years 10 months ago
Sparse Density Estimation with l1 Penalties
Florentina Bunea, Alexandre B. Tsybakov, Marten H....
CIAC
2003
Springer
145views Algorithms» more  CIAC 2003»
15 years 9 months ago
Additive Spanners for k-Chordal Graphs
Abstract. In this paper we show that every chordal graph with n vertices and m edges admits an additive 4-spanner with at most 2n−2 edges and an additive 3-spanner with at most O...
Victor Chepoi, Feodor F. Dragan, Chenyu Yan
CVPR
2007
IEEE
16 years 6 months ago
Discriminant Additive Tangent Spaces for Object Recognition
Pattern variation is a major factor that affects the performance of recognition systems. In this paper, a novel manifold tangent modeling method called Discriminant Additive Tange...
Liang Xiong, Jianguo Li, Changshui Zhang