Path: utzoo!censor!geac!lethe!yunexus!ists!helios.physics.utoronto.ca!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!lll-winken!uunet!mcsun!unido!fauern!faui43.informatik.uni-erlangen.de!immd2.informatik.uni-erlangen.de!fritzke From: fritzke@immd2.informatik.uni-erlangen.de (B. Fritzke) Newsgroups: comp.ai.neural-nets Subject: Traveling Salesman Data needed! Keywords: Optimization, TSP Message-ID: <1991Feb5.195412.3036@informatik.uni-erlangen.de> Date: 5 Feb 91 19:54:12 GMT Article-I.D.: informat.1991Feb5.195412.3036 Organization: Universitaet Erlangen, CS-Dep. IMMD II Lines: 23 I'm looking for sample Traveling Salesman Problems (TSP) to test the network model I have developed. Specifically I look for instances of the Euclidean TSP. This is the case, when all the n cities are distributed in the unit square and the distance measure is the Euclidiean distance. I would like to get together with the examples the shortest known path length or (even better) the optimal path length. Perhaps someone out there has the data of the 318-city problem posed by Lin & Kernighan? Otherwise any problem size < 5000 is appreciated. Please answer by e-mail! Thanks for any help. Bernd Fritzke Bernd Fritzke ------> e-mail: fritzke@immd2.informatik.uni-erlangen.de University of Erlangen, CS IMMD II, Martensstr. 3, 8520 Erlangen (Germany)