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128
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CORR
2010
Springer
169views Education» more  CORR 2010»
15 years 3 months ago
Near-Oracle Performance of Greedy Block-Sparse Estimation Techniques from Noisy Measurements
This paper examines the ability of greedy algorithms to estimate a block sparse parameter vector from noisy measurements. In particular, block sparse versions of the orthogonal mat...
Zvika Ben-Haim, Yonina C. Eldar
105
Voted
NA
2008
203views more  NA 2008»
15 years 3 months ago
Block Krylov-Schur method for large symmetric eigenvalue problems
Stewart's Krylov-Schur algorithm offers two advantages over Sorensen's implicitly restarted Arnoldi (IRA) algorithm. The first is ease of deflation of converged Ritz vect...
Yunkai Zhou, Yousef Saad
300
Voted
C3S2E
2011
ACM
14 years 7 months ago
A parallel LLL algorithm
The LLL algorithm is a well-known and widely used lattice basis reduction algorithm. In many applications, its speed is critical. Parallel computing can improve speed. However, th...
Yixian Luo, Sanzheng Qiao
CORR
2012
Springer
228views Education» more  CORR 2012»
13 years 11 months ago
Faster Approximate Distance Queries and Compact Routing in Sparse Graphs
A distance oracle is a compact representation of the shortest distance matrix of a graph. It can be queried to retrieve approximate distances and corresponding paths between any p...
Rachit Agarwal, Brighten Godfrey, Sariel Har-Peled
117
Voted
ICCV
2009
IEEE
16 years 8 months ago
The One-Shot Similarity Kernel
The One-Shot similarity measure has recently been introduced in the context of face recognition where it was used to produce state-of-the-art results. Given two vectors, their O...
Lior Wolf, Tal Hassner, Yaniv Taigman