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ICASSP
2011
IEEE
8 years 6 months ago
An iterative least-squares technique for dereverberation
Some recent dereverberation approaches that have been effective for automatic speech recognition (ASR) applications, model reverberation as a linear convolution operation in the s...
Kshitiz Kumar, Bhiksha Raj, Rita Singh, Richard M....
SIAMMAX
2010
224views more  SIAMMAX 2010»
8 years 9 months ago
Robust Approximate Cholesky Factorization of Rank-Structured Symmetric Positive Definite Matrices
Abstract. Given a symmetric positive definite matrix A, we compute a structured approximate Cholesky factorization A RT R up to any desired accuracy, where R is an upper triangula...
Jianlin Xia, Ming Gu
TOMS
2011
101views more  TOMS 2011»
8 years 9 months ago
Partitioned Triangular Tridiagonalization
Abstract. We present a partitioned algorithm for reducing a symmetric matrix to a tridiagonal form, with partial pivoting. That is, the algorithm computes a factorization P AP T = ...
Miroslav Rozlozník, Gil Shklarski, Sivan To...
NAACL
2010
9 years 11 days ago
Optimal Parsing Strategies for Linear Context-Free Rewriting Systems
Factorization is the operation of transforming a production in a Linear Context-Free Rewriting System (LCFRS) into two simpler productions by factoring out a subset of the nonterm...
Daniel Gildea
ECCV
2010
Springer
9 years 1 months ago
Element-Wise Factorization for N-View Projective Reconstruction
Sturm-Triggs iteration is a standard method for solving the projective factorization problem. Like other iterative algorithms, this method suffers from some common drawbacks such ...
Yuchao Dai, Hongdong Li, Mingyi He
PAMI
2002
78views more  PAMI 2002»
9 years 2 months ago
Robust Factorization
Factorization algorithms for recovering structure and motion from an image stream have many advantages, but they usually require a set of well tracked features. Such a set is in g...
Henrik Aanæs, Rune Fisker, Kalle Åstr&...
SIAMSC
2008
132views more  SIAMSC 2008»
9 years 2 months ago
Stochastic Preconditioning for Diagonally Dominant Matrices
Abstract. This paper presents a new stochastic preconditioning approach for large sparse matrices. For the class of matrices that are row-wise and column-wise irreducibly diagonall...
Haifeng Qian, Sachin S. Sapatnekar
MP
2008
80views more  MP 2008»
9 years 2 months ago
Modified Cholesky algorithms: a catalog with new approaches
Given an n
Haw-ren Fang, Dianne P. O'Leary
MCSS
2008
Springer
9 years 2 months ago
Weakly coprime factorization and state-feedback stabilization of discrete-time systems
Abstract: The LQ-optimal state feedback of a finite-dimensional linear time-invariant system determines a coprime factorization NM-1 of the transfer function. We show that the same...
Kalle M. Mikkola
DAM
2008
82views more  DAM 2008»
9 years 2 months ago
On multicolour noncomplete Ramsey graphs of star graphs
Given graphs G, G1, . . . , Gk, where k 2, the notation G (G1, G2, . . . , Gk) denotes that every factorization F1 F2
Sachin Gautam, Ashish Kumar Srivastava, Amitabha T...
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