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» A General Polynomial Sieve
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CSR
2008
Springer
13 years 12 months ago
A Semantic Proof of Polytime Soundness of Light Affine Logic
We define a denotational semantics for Light Affine Logic (LAL) which has the property that denotations of functions are polynomial time computable by construction of the model. Th...
Ugo Dal Lago, Martin Hofmann
IPCO
2007
81views Optimization» more  IPCO 2007»
13 years 11 months ago
Matching Problems in Polymatroids Without Double Circuits
According to the present state of the theory of the matroid matching problem, the existence of a good characterization to the size of a maximum matching depends on the behavior of ...
Márton Makai, Gyula Pap, Jácint Szab...
SODA
1992
ACM
179views Algorithms» more  SODA 1992»
13 years 11 months ago
Approximating the Minimum Weight Triangulation
We show that the length of the minimum weight Steiner triangulation (MWST) of a point set can be approximated within a constant factor by a triangulation algorithm based on quadtr...
David Eppstein
CSL
2010
Springer
13 years 11 months ago
On Slicewise Monotone Parameterized Problems and Optimal Proof Systems for TAUT
Abstract. For a reasonable sound and complete proof calculus for firstorder logic consider the problem to decide, given a sentence of firstorder logic and a natural number n, whet...
Yijia Chen, Jörg Flum
AI
2007
Springer
13 years 10 months ago
Determining the consistency of partial tree descriptions
We present an efficient algorithm that checks the consistency of partial descriptions of ordered trees. The constraint language of these descriptions was introduced by Cornell in c...
Manuel Bodirsky, Martin Kutz