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DCC
2005
IEEE
16 years 5 months ago
The Combinatorics of Dom de Caen
We give an overview of some of the mathematical results of Dominique de Caen. These include a short proof of K?onig's theorem, results on Tur?an numbers, biclique partitions,...
Edwin R. van Dam
ACL
1993
15 years 7 months ago
On the Decidability of Functional Uncertainty
We show that feature logic extended by functional uncertainty is decidable, even if one admits cyclic descriptions. We present an algorithm, which solves feature descriptions cont...
Rolf Backofen
DISOPT
2006
90views more  DISOPT 2006»
15 years 6 months ago
Tree decompositions of graphs: Saving memory in dynamic programming
We propose an effective heuristic to save memory in dynamic programming on tree decompositions when solving graph optimization problems. The introduced "anchor technique"...
Nadja Betzler, Rolf Niedermeier, Johannes Uhlmann
JCT
2008
57views more  JCT 2008»
15 years 6 months ago
Invariant boundary distributions for finite graphs
Let be the fundamental group of a finite connected graph G. Let M be an abelian group. A distribution on the boundary of the universal covering tree is an M-valued measure defin...
Guyan Robertson
SIAMCOMP
2008
101views more  SIAMCOMP 2008»
15 years 6 months ago
Combination Can Be Hard: Approximability of the Unique Coverage Problem
We prove semi-logarithmic inapproximability for a maximization problem called unique coverage: given a collection of sets, find a subcollection that maximizes the number of elemen...
Erik D. Demaine, Uriel Feige, MohammadTaghi Hajiag...