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Generalized Network Design Problems

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Release : 2012-10-30
Genre : Mathematics
Kind : eBook
Book Rating : 683/5 ( reviews)

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Book Synopsis Generalized Network Design Problems by : Petrica C. Pop

Download or read book Generalized Network Design Problems written by Petrica C. Pop. This book was released on 2012-10-30. Available in PDF, EPUB and Kindle. Book excerpt: Combinatorial optimization is a fascinating topic. Combinatorial optimization problems arise in a wide variety of important fields such as transportation, telecommunications, computer networking, location, planning, distribution problems, etc. Important and significant results have been obtained on the theory, algorithms and applications over the last few decades. In combinatorial optimization, many network design problems can be generalized in a natural way by considering a related problem on a clustered graph, where the original problem's feasibility constraints are expressed in terms of the clusters, i.e., node sets instead of individual nodes. This class of problems is usually referred to as generalized network design problems (GNDPs) or generalized combinatorial optimization problems. The express purpose of this monograph is to describe a series of mathematical models, methods, propositions, algorithms developed in the last years on generalized network design problems in a unified manner. The book consists of seven chapters, where in addition to an introductory chapter, the following generalized network design problems are formulated and examined: the generalized minimum spanning tree problem, the generalized traveling salesman problem, the railway traveling salesman problem, the generalized vehicle routing problem, the generalized fixed-charge network design problem and the generalized minimum vertex-biconnected network problem. The book will be useful for researchers, practitioners, and graduate students in operations research, optimization, applied mathematics and computer science. Due to the substantial practical importance of some presented problems, researchers in other areas will find this book useful, too.

Generalized Network Design Problems

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Release : 2002
Genre :
Kind : eBook
Book Rating : /5 ( reviews)

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Book Synopsis Generalized Network Design Problems by : Labbé, Martine

Download or read book Generalized Network Design Problems written by Labbé, Martine. This book was released on 2002. Available in PDF, EPUB and Kindle. Book excerpt:

Hybrid Metaheuristics for Generalized Network Design Problems

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Release : 2012
Genre :
Kind : eBook
Book Rating : 647/5 ( reviews)

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Book Synopsis Hybrid Metaheuristics for Generalized Network Design Problems by : Bin Hu

Download or read book Hybrid Metaheuristics for Generalized Network Design Problems written by Bin Hu. This book was released on 2012. Available in PDF, EPUB and Kindle. Book excerpt: In this book, we consider several generalized network design problems which belong to the family of NP-hard combinatorial optimization problems. In contrast to their classical counterparts, the generalized versions are defined on graphs whose node sets are partitioned into clusters. The goal is to find a subgraph which spans exactly one node from each cluster and also meets further constraints respectively. Applicable methodologies for solving combinatorial optimization problems can roughly be divided into two mainstreams. The first class consists of algorithms which aim to solve these problems to proven optimality - provided that they are given enough run-time and memory. The second class are metaheuristics which compute approximate solutions but usually require significantly less run-time. By combining these two classes, we are able to form collaboration algorithms that benefit from advantages of both sides. Such approaches are considered for solving the generalized network design problems in this book.

Design and Implementation of Data Structures for Generalized Networks

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Release : 1984
Genre : Algorithms
Kind : eBook
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Book Synopsis Design and Implementation of Data Structures for Generalized Networks by : Agha Iqbal Ali

Download or read book Design and Implementation of Data Structures for Generalized Networks written by Agha Iqbal Ali. This book was released on 1984. Available in PDF, EPUB and Kindle. Book excerpt: The specialization of the simplex algorithm for the solution of generalized network flow problems rests on the fact that a basis for the problem may be represented graphically as a spanning forest in which each component is either a one-tree or a rooted tree. The design of a specialized algorithm for efficient solution of generalized network problems necessarily depends on data structures chosen to represent the basis. This paper presents the design and detailed algorithmic specification of the primal simplex algorithm for such problems. Computational testing to determine the overhead required by generalized network data structures over pure network data structures indicates that generalized network algorithms are on the order of 2.5 to 3.5 times slower than pure network algorithms. Computational testing with generalized network problems with up to 1000 nodes and 7000 arcs establishes the suitability of the data-structures for efficient implementation of primal simplex calculations. Keywords: Linear programming. (Author).

Network Optimization Problems: Algorithms, Applications And Complexity

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Release : 1993-04-27
Genre :
Kind : eBook
Book Rating : 580/5 ( reviews)

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Book Synopsis Network Optimization Problems: Algorithms, Applications And Complexity by : Ding-zhu Du

Download or read book Network Optimization Problems: Algorithms, Applications And Complexity written by Ding-zhu Du. This book was released on 1993-04-27. Available in PDF, EPUB and Kindle. Book excerpt: In the past few decades, there has been a large amount of work on algorithms for linear network flow problems, special classes of network problems such as assignment problems (linear and quadratic), Steiner tree problem, topology network design and nonconvex cost network flow problems.Network optimization problems find numerous applications in transportation, in communication network design, in production and inventory planning, in facilities location and allocation, and in VLSI design.The purpose of this book is to cover a spectrum of recent developments in network optimization problems, from linear networks to general nonconvex network flow problems./a

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