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» Inapproximability of Combinatorial Optimization Problems
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MVA
2007
173views Computer Vision» more  MVA 2007»
14 years 12 days ago
Microscopic Image Segmentation with Two-dimensional Exponential Entropy Based on Hybrid Microcanonical Annealing
Counting cells and following the evolution of the biological layers are important applications in microscopic imagery. In this paper, a microscopic image segmentation method with ...
Amir Nakib, Hamouche Oulhadj, Patrick Siarry
CGF
2010
135views more  CGF 2010»
13 years 11 months ago
Designing Quad-dominant Meshes with Planar Faces
We study the combined problem of approximating a surface by a quad mesh (or quad-dominant mesh) which on the one hand has planar faces, and which on the other hand is aestheticall...
Mirko Zadravec, Alexander Schiftner, Johannes Wall...
DM
2010
96views more  DM 2010»
13 years 11 months ago
On well-rounded sublattices of the hexagonal lattice
Abstract. We produce an explicit parameterization of well-rounded sublattices of the hexagonal lattice in the plane, splitting them into similarity classes. We use this parameteriz...
Lenny Fukshansky, Daniel Moore, R. Andrew Ohana, W...
SWAT
2010
Springer
204views Algorithms» more  SWAT 2010»
13 years 8 months ago
Feasible and Accurate Algorithms for Covering Semidefinite Programs
In this paper we describe an algorithm to approximately solve a class of semidefinite programs called covering semidefinite programs. This class includes many semidefinite programs...
Garud Iyengar, David J. Phillips, Clifford Stein
CPM
2009
Springer
183views Combinatorics» more  CPM 2009»
13 years 8 months ago
Permuted Longest-Common-Prefix Array
The longest-common-prefix (LCP) array is an adjunct to the suffix array that allows many string processing problems to be solved in optimal time and space. Its construction is a bo...
Juha Kärkkäinen, Giovanni Manzini, Simon...