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JCO
2008
117views more  JCO 2008»
15 years 6 months ago
Approximation algorithms for connected facility location problems
We study Connected Facility Location problems. We are given a connected graph G = (V, E) with nonnegative edge cost ce for each edge e E, a set of clients D V such that each cli...
Mohammad Khairul Hasan, Hyunwoo Jung, Kyung-Yong C...
CSR
2008
Springer
15 years 8 months ago
From Invariants to Canonization in Parallel
A function f of a graph is called a complete graph invariant if two given graphs G and H are isomorphic exactly when f(G) = f(H). If additionally, f(G) is a graph isomorphic to G, ...
Johannes Köbler, Oleg Verbitsky
IPPS
2007
IEEE
16 years 20 days ago
Implementing Hirschberg's PRAM-Algorithm for Connected Components on a Global Cellular Automaton
The GCA (Global Cellular Automata) model consists of a collection of cells which change their states synchronously depending on the states of their neighbors like in the classical...
Johannes Jendrsczok, Rolf Hoffmann, Jörg Kell...
HICSS
2002
IEEE
212views Biometrics» more  HICSS 2002»
15 years 11 months ago
Connectivity-Based k-Hop Clustering in Wireless Networks
Abstract. In this paper we describe several new clustering algorithms for nodes in a mobile ad hoc network. The main contribution is to generalize the cluster definition and forma...
Geng Chen, Fabian Garcia Nocetti, Julio Solano-Gon...
IPCO
2004
114views Optimization» more  IPCO 2004»
15 years 7 months ago
Enumerating Minimal Dicuts and Strongly Connected Subgraphs and Related Geometric Problems
We consider the problems of enumerating all minimal strongly connected subgraphs and all minimal dicuts of a given directed graph G = (V, E). We show that the first of these proble...
Endre Boros, Khaled M. Elbassioni, Vladimir Gurvic...