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» On the Subgroup Distance Problem
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ICALP
1995
Springer
15 years 7 months ago
Shortest Path Queries in Digraphs of Small Treewidth
We consider the problem of preprocessing an n-vertex digraph with real edge weights so that subsequent queries for the shortest path or distance between any two vertices can be efï...
Shiva Chaudhuri, Christos D. Zaroliagis
SGP
2007
15 years 6 months ago
Constraint-based fairing of surface meshes
We propose a constraint-based method for the fairing of surface meshes. The main feature of our approach is that the resulting smoothed surface remains within a prescribed distanc...
Klaus Hildebrandt, Konrad Polthier
120
Voted
ACL
2010
15 years 2 months ago
On the Computational Complexity of Dominance Links in Grammatical Formalisms
Dominance links were introduced in grammars to model long distance scrambling phenomena, motivating the definition of multiset-valued linear indexed grammars (MLIGs) by Rambow (19...
Sylvain Schmitz
SODA
2001
ACM
188views Algorithms» more  SODA 2001»
15 years 5 months ago
Approximation algorithms for the 0-extension problem
In the 0-extension problem, we are given a weighted graph with some nodes marked as terminals and a semimetric on the set of terminals. Our goal is to assign the rest of the nodes ...
Gruia Calinescu, Howard J. Karloff, Yuval Rabani
COR
2008
142views more  COR 2008»
15 years 3 months ago
Modeling and solving the rooted distance-constrained minimum spanning tree problem
In this paper we discuss models and methods for solving the rooted distance constrained minimum spanning tree problem which is defined as follows: given a graph G = (V, E) with no...
Luis Gouveia, Ana Paias, Dushyant Sharma