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SIAMAM
2000
91views more  SIAMAM 2000»
15 years 6 months ago
Competition in a Chemostat with Wall Attachment
Abstract. A mathematical model of microbial competition for limiting nutrient and wallattachment sites in a chemostat, formulated by Freter et al. in their study of the colonizatio...
Eric D. Stemmons, Hal L. Smith
SIAMCOMP
2000
76views more  SIAMCOMP 2000»
15 years 6 months ago
On Interpolation and Automatization for Frege Systems
The interpolation method has been one of the main tools for proving lower bounds for propositional proof systems. Loosely speaking, if one can prove that a particular proof system ...
Maria Luisa Bonet, Toniann Pitassi, Ran Raz
SIAMCOMP
2000
109views more  SIAMCOMP 2000»
15 years 6 months ago
Dual-Bounded Generating Problems: Partial and Multiple Transversals of a Hypergraph
Abstract. We consider two natural generalizations of the notion of transversal to a finite hypergraph, arising in data-mining and machine learning, the so called multiple and parti...
Endre Boros, Vladimir Gurvich, Leonid Khachiyan, K...
SIAMCOMP
2000
88views more  SIAMCOMP 2000»
15 years 6 months ago
Gadgets, Approximation, and Linear Programming
We present a linear programming-based method for nding \gadgets", i.e., combinatorial structures reducing constraints of one optimization problem to constraints of another. A...
Luca Trevisan, Gregory B. Sorkin, Madhu Sudan, Dav...
CGF
1998
127views more  CGF 1998»
15 years 6 months ago
Getting Rid of Links in Hierarchical Radiosity
Hierarchical radiosity with clustering has positioned itself as one of the most efficient algorithms for computing global illumination in non-trivial environments. However, using...
Marc Stamminger, Hartmut Schirmacher, Philipp Slus...