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Traveling Salesman Problem with Clustering
Journal of Statistical Physics, 2010zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Schneider, Johannes J. +2 more
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Pediatrics, 1989
"The study could neither confirm nor deny a link between the leukemia incidents and proximity of nuclear power plants because such statistical studies, by their nature, cannot prove cause and effect." So many scientific papers end with these words.
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"The study could neither confirm nor deny a link between the leukemia incidents and proximity of nuclear power plants because such statistical studies, by their nature, cannot prove cause and effect." So many scientific papers end with these words.
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2008
An obvious strategy you may follow in grouping objects is that objects located on the same shelf are much similar to each other, whilst objects belonging to different shelves are very dissimilar. These groups of objects will be named clusters, understanding that they become classes once we acknowledge their utility and reward them for this by giving ...
Bruno Apolloni +3 more
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An obvious strategy you may follow in grouping objects is that objects located on the same shelf are much similar to each other, whilst objects belonging to different shelves are very dissimilar. These groups of objects will be named clusters, understanding that they become classes once we acknowledge their utility and reward them for this by giving ...
Bruno Apolloni +3 more
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Pseudoinverse in clustering problems
Cybernetics and Systems Analysis, 2007The paper deals with the application of pseudoinverse methods, especially, with their development as the pseudoinverse-perturbation theory in solving clustering problems. The solution algorithm for a clustering problem is recurrent. At the first step, the whole set of vectors is arbitrarily divided into two groups.
Kirichenko, N. F., Donchenko, V. S.
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Solving capacitated clustering problems
European Journal of Operational Research, 1984The authors consider the following special cluster problem with side conditions: n given entities have to be clustered into p mutually exclusive and exhaustive groups of restricted (upper) size such that the sum of \(L_ s\)-distances between each entity and a designated group median (some entity, too) is minimized.
Mulvey, John M., Beck, Michael P.
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Quickest Cluster Flow Problems
2011Macroscopic models based on dynamic network flow theory are successfully applied to obtain lower bounds on real evacuation times [1]. The goal of our research is to tighten this lower bound and to make this macroscopic approach more realistic by taking into account clustering of evacuees - a sociological phenomenon observed in evacuation scenarios.
H. W. Hamacher, K. Leiner, S. Ruzika
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On the online unit clustering problem
ACM Transactions on Algorithms, 2008We continue the study of the online unit clustering problem, introduced by Chan and Zarrabi-Zadeh ( Workshop on Approximation and Online Algorithms 2006 , LNCS 4368, p. 121--131. Springer, 2006). We design a deterministic algorithm with a competitive ratio of 7/4 for the one-dimensional case.
Epstein, L., Stee, R. van
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Fast Clustering by Directly Solving Bipartite Graph Clustering Problem
IEEE Transactions on Neural Networks and Learning SystemsSpectral clustering (SC) has been widely used in many applications and shows excellent performance. Its high computational cost limits its applications; many strategies including the anchor technique can partly alleviate the high computational cost problem.
Feiping Nie +4 more
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Methodological problems in investigating disease clusters
Science of The Total Environment, 1992Increased reporting of disease clusters is stretching health department resources while failing to uncover many significant environmental hazards. By reviewing the methodology by which health departments respond to such reports, we argue that there is a strong bias against investigating the most hazardous situations.
D, Wartenberg, M, Greenberg
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Some Cluster Size and Percolation Problems
Journal of Mathematical Physics, 1961The problem of cluster size distribution and percolation on a regular lattice or graph of bonds and sites is reviewed and its applications to dilute ferromagnetism, polymer gelation, etc., briefly discussed. The cluster size and percolation problems are then solved exactly for Bethe lattices (infinite homogeneous Cayley trees) and for a wide class of ...
Fisher, Michael E., Essam, John W.
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