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CISS
2010
IEEE
13 years 2 months ago
On the LASSO and Dantzig selector equivalence
—Recovery of sparse signals from noisy observations is a problem that arises in many information processing contexts. LASSO and the Dantzig selector (DS) are two well-known schem...
Muhammad Salman Asif, Justin K. Romberg
SIAMJO
2002
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13 years 10 months ago
A Probability-One Homotopy Algorithm for Nonsmooth Equations and Mixed Complementarity Problems
A probability-one homotopy algorithm for solving nonsmooth equations is described. This algorithm is able to solve problems involving highly nonlinear equations, where the norm of ...
Stephen C. Billups, Layne T. Watson
CCCG
2009
14 years 2 days ago
On the Height of a Homotopy
Given 2 homotopic curves in a topological space, there are several ways to measure similarity between the curves, including Hausdorff distance and Fr
Erin W. Chambers, David Letscher