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CIAC
2006
Springer
110views Algorithms» more  CIAC 2006»
14 years 1 months ago
Distance Approximating Trees: Complexity and Algorithms
Let 1 and 0 be real numbers. A tree T = (V, E ) is a distance (, )
Feodor F. Dragan, Chenyu Yan
ECCC
2006
41views more  ECCC 2006»
13 years 9 months ago
On a syntactic approximation to logics that capture complexity classes
We formulate a formal syntax of approximate formulas for the logic with counting quantifiers, SOLP, studied by us in [1], where we showed the following facts: (i) In the presence ...
Argimiro Arratia, Carlos E. Ortiz
ICASSP
2009
IEEE
14 years 4 months ago
A low complexity Orthogonal Matching Pursuit for sparse signal approximation with shift-invariant dictionaries
We propose a variant of Orthogonal Matching Pursuit (OMP), called LoCOMP, for scalable sparse signal approximation. The algorithm is designed for shift-invariant signal dictionari...
Boris Mailhé, Rémi Gribonval, Fr&eac...
COCO
2009
Springer
119views Algorithms» more  COCO 2009»
14 years 4 months ago
An Approximation Algorithm for Approximation Rank
One of the strongest techniques available for showing lower bounds on quantum communication complexity is the logarithm of the approximation rank of the communication matrix— th...
Troy Lee, Adi Shraibman
SMA
2003
ACM
163views Solid Modeling» more  SMA 2003»
14 years 2 months ago
Fast swept volume approximation of complex polyhedral models
We present an efficient algorithm to approximate the swept volume (SV) of a complex polyhedron along a given trajectory. Given the boundary description of the polyhedron and a pat...
Young J. Kim, Gokul Varadhan, Ming C. Lin, Dinesh ...