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» Bounds for separating hash families
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PG
2002
IEEE
14 years 1 days ago
A Divide and Conquer Algorithm for Triangle Mesh Connectivity Encoding
We propose a divide and conquer algorithm for the single resolution encoding of triangle mesh connectivity. Starting from a boundary edge we grow a zig-zag strip which divides the...
Ioannis P. Ivrissimtzis, Christian Rössl, Han...
STOC
2010
ACM
200views Algorithms» more  STOC 2010»
14 years 4 months ago
Hardness Amplification in Proof Complexity
We present a generic method for converting any family of unsatisfiable CNF formulas that require large resolution rank into CNF formulas whose refutation requires large rank for p...
Paul Beame, Trinh Huynh and Toniann Pitassi
SODA
2003
ACM
133views Algorithms» more  SODA 2003»
13 years 8 months ago
Integrality ratio for group Steiner trees and directed steiner trees
The natural relaxation for the Group Steiner Tree problem, as well as for its generalization, the Directed Steiner Tree problem, is a flow-based linear programming relaxation. We...
Eran Halperin, Guy Kortsarz, Robert Krauthgamer, A...
CP
2000
Springer
13 years 10 months ago
Expressiveness of Full First Order Constraints in the Algebra of Finite or Infinite Trees
We are interested in the expressiveness of constraints represented by general first order formulae, with equality as unique relation symbol and function symbols taken from an infi...
Alain Colmerauer, Thi-Bich-Hanh Dao
WG
2010
Springer
13 years 5 months ago
max-cut and Containment Relations in Graphs
book Author Title 58 Bijo S Anand Atoms and clique separators in graph products 59 Asir T Domination in total graph of a commutative ring 60 Sharada B On the Neighbourhood Subdivi...
Marcin Kaminski