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SODA
1998
ACM
128views Algorithms» more  SODA 1998»
15 years 6 months ago
A Polynomial-Time Approximation Scheme for Weighted Planar Graph TSP
Given a planar graph on n nodes with costs weights on its edges, de ne the distance between nodes i and j as the length of the shortest path between i and j. Consider this as an i...
Sanjeev Arora, Michelangelo Grigni, David R. Karge...
CORR
2010
Springer
81views Education» more  CORR 2010»
15 years 4 months ago
Relaxation-based coarsening and multiscale graph organization
We propose a new measure that quantifies the "closeness" between two nodes in a given graph. The calculation of the measure is linear in the number of edges in the graph...
Dorit Ron, Ilya Safro, Achi Brandt
CORR
2010
Springer
92views Education» more  CORR 2010»
15 years 4 months ago
Extremal graphs for the identifying code problem
An identifying code of a graph G is a dominating set C such that every vertex x of G is distinguished from all other vertices by the set of vertices in C that are at distance at m...
Florent Foucaud, Eleonora Guerrini, Matjaz Kovse, ...
ACL
2009
15 years 2 months ago
Bypassed alignment graph for learning coordination in Japanese sentences
Past work on English coordination has focused on coordination scope disambiguation. In Japanese, detecting whether coordination exists in a sentence is also a problem, and the sta...
Hideharu Okuma, Kazuo Hara, Masashi Shimbo, Yuji M...
ER
1993
Springer
163views Database» more  ER 1993»
15 years 8 months ago
Using Conceptual Graph Theory to Support Schema Integration
Two major problems in schema integration are to identify correspondences between different conceptual schemas and to verify that the proposed correspondences are consistent with th...
Paul Johannesson