Titlebook: Combinatorial Optimization and Applications; 6th International Co Guohui Lin Conference proceedings 2012 Springer-Verlag Berlin Heidelberg

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On the Central Path Problem, 2D space, find a curve ., called ., that best represents all curves in .. In order for . to best represent ., . is required to minimize the maximum distance (measured by the directed Hausdorff distance) to all curves in . and is the locus of the center of minimal spanning disk of .. For the CPP pro

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Algorithms for Forest Local Similarity,lled trees. Given two ordered labelled forests . and ., the . is to find two sub-forests .′ and .′ of . and . respectively such that they are the most similar over all possible .′ and .′. In this paper, we present efficient algorithms for the local forest similarity problem for two types of sub-fore

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Speedup of RNA Pseudoknotted Secondary Structure Recurrence Computation with the Four-Russians Meth cells and viral RNA [1]. Restricting the class of possible structures and then finding the optimal structure for that restricted class is a common method employed to deal with the computational complexity..We derive a practical and worst-case speedup algorithm using the Four-Russians method for the

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男生如果明白

The ,-Matching Problem in Hypergraphs: Hardness and Approximability,is defined as follows: for given .?∈?? and a hypergraph . a subset . with maximum cardinality is sought so that no vertex is contained in more than . hyperedges of ... We show that if the maximum degree of the vertices is bounded by a constant .?∈?? , this problem has no approximation scheme, unless

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Resource Scheduling with Supply Constraint and Linear Cost,t, and . jobs, each requiring an arbitrary number .. of resources. Each resource can only be assigned to one job. The objective is to find a schedule that minimizes ∑?...., where .. is the weight/importance of job .. and .. is the time that job .. receives all resources it requires. We show this pro

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Basel Hasan,Ali Amin Rezaei,Jorge Marx GómezWe suggest the notion of the surface area centered at an edge for an interconnection network, which generalizes the usual notion of surface area of a network centered at a vertex. Following an elementary approach, we derive an explicit expression of the edge-centered surface area of the arrangement graph.

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