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FCT
2007
Springer
14 years 1 months ago
Analysis of Approximation Algorithms for k-Set Cover Using Factor-Revealing Linear Programs
We present new combinatorial approximation algorithms for k-set cover. Previous approaches are based on extending the greedy algorithm by efficiently handling small sets. The new a...
Stavros Athanassopoulos, Ioannis Caragiannis, Chri...
AAIM
2007
Springer
141views Algorithms» more  AAIM 2007»
14 years 1 months ago
An Almost Linear Time 2.8334-Approximation Algorithm for the Disc Covering Problem
The disc covering problem asks to cover a set of points on the plane with a minimum number of fix-sized discs. We develop an O(n(log n)2 (log log n)2 ) deterministic time 2.8334-a...
Bin Fu, Zhixiang Chen, Mahdi Abdelguerfi
LICS
1996
IEEE
13 years 11 months ago
A Linear Logical Framework
We present the linear type theory LLF as the forThis extended abstract will appear on the proceedings of the Eleventh Annual IEEE Symposium on Logic in Computer Science -LICS'...
Iliano Cervesato, Frank Pfenning
JDA
2006
87views more  JDA 2006»
13 years 7 months ago
A 3-approximation for the pathwidth of Halin graphs
We prove that the pathwidth of Halin graphs can be 3-approximated in linear time. Our approximation algorithms is based on a combinatorial result about respectful edge orderings o...
Fedor V. Fomin, Dimitrios M. Thilikos
TABLEAUX
1999
Springer
13 years 11 months ago
linTAP: A Tableau Prover for Linear Logic
Abstract. linTAP is a tableau prover for the multiplicative and exponential fragment M?LL of Girards linear logic. It proves the validity of a given formula by constructing an anal...
Heiko Mantel, Jens Otten