Results 11 to 20 of about 292 (62)

Hard cases of the multifacility location problem [PDF]

open access: yes, 2004
Let μ be a rational-valued metric on a finite set T. We consider (a version of) the multifacility location problem: given a finite set V⊇T and a function c:V2→Z+, attach each element x∈V−T to an element γ(x)∈T minimizing ∑c(xy)μ(γ(x)γ(y)):xy∈V2, letting ...
Karzanov, Alexander V.
core   +1 more source

The minimum cost multicommodity flow problem in dynamic networks and an algorithm for its solving [PDF]

open access: yesComputer Science Journal of Moldova, 2005
The dynamic version of the minimum cost multicommodity flow problem that generalizes the static minimum cost multicommodity flow problem is formulated and studied.
Maria A. Fonoberova, Dmitrii D. Lozovanu
doaj  

An approximation algorithm for the generalized minimum spanning tree problem with bounded cluster size [PDF]

open access: yes, 2001
Given a complete undirected graph with the nodes partitioned into m node sets called clusters, the Generalized Minimum Spanning Tree problem denoted by GMST is to find a minimum-cost tree which includes exactly one node from each cluster.
Kern, W., Pop, P.C., Still, G.J.
core   +1 more source

Polynomial Time Algorithm for Determining Max-Min Paths in Networks and Solving Zero Value Cyclic Games [PDF]

open access: yesComputer Science Journal of Moldova, 2005
We study the max-min paths problem, which represents a game version of the shortest and the longest paths problem in a weighted directed graph. In this problem the vertex set V of the weighted directed graph G=(V,E) is divided into two disjoint subsets ...
Dmitrii D. Lozovanu
doaj  

Monotone properties of random geometric graphs have sharp thresholds

open access: yes, 2005
Random geometric graphs result from taking $n$ uniformly distributed points in the unit cube, $[0,1]^d$, and connecting two points if their Euclidean distance is at most $r$, for some prescribed $r$.
Goel, Ashish   +2 more
core   +3 more sources

Optimal Control of Sweeping Processes in Robotics and Traffic Flow Models [PDF]

open access: yes, 2018
The paper is mostly devoted to applications of a novel optimal control theory for perturbed sweeping/Moreau processes to two practical dynamical models.
Colombo, Giovanni   +2 more
core   +2 more sources

The generalized minimum spanning tree polytope and related polytopes [PDF]

open access: yes, 2001
The Generalized Minimum Spanning Tree problem denoted by GMST is a variant of the classical Minimum Spanning Tree problem in which nodes are partitioned into clusters and the problem calls for a minimum cost tree spanning at least one node from each ...
Pop, P.C.
core   +1 more source

An efficient algorithm for critical circuits and finite eigenvectors in the max-plus algebra [PDF]

open access: yes, 1999
We consider the eigenvalue problem in the max-plus algebra for matrices in {−∞∪R}n×n but with eigenvectors in Rn. The problem is relaxed to a linear optimization (LO) problem of which the dual problem is solved by finding a maximal average weight circuit
Olsder, Geert-Jan   +2 more
core   +1 more source

A Parametric Network Approach for Concepts Hierarchy Generation in Text Corpus

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2016
The article presents a preflow approach for the parametric maximum flow problem, derived from the rules of constructing concepts hierarchy in text corpus.
Sângeorzan L. S.   +2 more
doaj   +1 more source

An ISS Small-Gain Theorem for General Networks

open access: yes, 2005
We provide a generalized version of the nonlinear small-gain theorem for the case of more than two coupled input-to-state stable (ISS) systems. For this result the interconnection gains are described in a nonlinear gain matrix and the small-gain ...
A Berman   +24 more
core   +5 more sources

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