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SYNASC
2006
IEEE
129views Algorithms» more  SYNASC 2006»
14 years 4 months ago
Pivot-Free Block Matrix Inversion
We present a pivot-free deterministic algorithm for the inversion of block matrices. The method is based on the Moore-Penrose inverse and is applicable over certain general classe...
Stephen M. Watt
ISSAC
2007
Springer
99views Mathematics» more  ISSAC 2007»
14 years 5 months ago
Faster inversion and other black box matrix computations using efficient block projections
Wayne Eberly, Mark Giesbrecht, Pascal Giorgi, Arne...
UAI
2008
14 years 9 days ago
Projected Subgradient Methods for Learning Sparse Gaussians
Gaussian Markov random fields (GMRFs) are useful in a broad range of applications. In this paper we tackle the problem of learning a sparse GMRF in a high-dimensional space. Our a...
John Duchi, Stephen Gould, Daphne Koller
ICCAD
2006
IEEE
165views Hardware» more  ICCAD 2006»
14 years 7 months ago
A fast block structure preserving model order reduction for inverse inductance circuits
Most existing RCL−1 circuit reductions stamp inverse inductance L−1 elements by a second-order nodal analysis (NA). The NA formulation uses nodal voltage variables and describ...
Hao Yu, Yiyu Shi, Lei He, David Smart
OL
2008
78views more  OL 2008»
13 years 10 months ago
Slopes of shadow prices and Lagrange multipliers
Abstract Manyeconomicmodels andoptimizationproblems generate(endogenous) shadow prices--alias dual variables or Lagrange multipliers. Frequently the "slopes" of resulting...
Sjur Didrik Flåm, Hubertus Th. Jongen, Olive...