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» Solving Very Sparse Rational Systems of Equations
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ISBI
2004
IEEE
14 years 8 months ago
Diffusion Smoothing on Brain Surface via Finite Element Method
Surface data such as the segmented cortical surface of the human brain plays an important role in medical imaging. To increase the signal-to-noise ratio for data residing on the b...
Moo Chung, Jonathan Taylor
IV
2002
IEEE
124views Visualization» more  IV 2002»
14 years 12 days ago
Numerical Solving of Geometric Constraints
: In computer-aided design, geometric modeling by constraints enables users to describe shapes by relationships called constraints between geometric elements. The problem is to der...
Samy Ait-Aoudia
SIAMSC
2010
215views more  SIAMSC 2010»
13 years 5 months ago
A Fast Algorithm for Sparse Reconstruction Based on Shrinkage, Subspace Optimization, and Continuation
We propose a fast algorithm for solving the ℓ1-regularized minimization problem minx∈Rn µ x 1 + Ax − b 2 2 for recovering sparse solutions to an undetermined system of linea...
Zaiwen Wen, Wotao Yin, Donald Goldfarb, Yin Zhang
ICISC
2007
152views Cryptology» more  ICISC 2007»
13 years 9 months ago
Analysis of Multivariate Hash Functions
We analyse the security of new hash functions whose compression function is explicitly defined as a sequence of multivariate equations. First we prove non-universality of certain ...
Jean-Philippe Aumasson, Willi Meier
CORR
2010
Springer
96views Education» more  CORR 2010»
13 years 7 months ago
LSMR: An iterative algorithm for sparse least-squares problems
Abstract. An iterative method LSMR is presented for solving linear systems Ax = b and leastsquares problem min Ax - b 2, with A being sparse or a fast linear operator. LSMR is base...
David Fong, Michael Saunders