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The rapid growth of telecommunication capacity, driven in part by the wide-ranging deployment of fiber-optic technology has led to increasing concern regarding the survivability of such networks. In communication networks, survivability is usually defined as the percentage of total traffic...
Persistent link: https://www.econbiz.de/10009214250
decision variables to facilitate solution. We then develop two heuristics to obtain approximate solutions to the TDP. The first … heuristic is an LP-based method, while the second uses a combination of LP relaxation and branch and bound. The two heuristics …
Persistent link: https://www.econbiz.de/10009191634
Recent studies have demonstrated the effectiveness of applying adaptive memory tabu search procedures to combinatorial optimization problems. In this paper we describe the development and use of such an approach to solve binary quadratic programs. Computational experience is reported, showing...
Persistent link: https://www.econbiz.de/10009197621
We introduce a heuristic method for finding good, feasible solutions for multiproduct lot sizing problems with general assembly structures, multiple constrained resources, and nonzero setup costs and setup times. We evaluate the performance of this heuristic by comparing its solutions to optimal...
Persistent link: https://www.econbiz.de/10009197943
The conversion of a functional layout into a cellular manufacturing system involves the partitioning of several multiserver work centers. The loss of pooling synergy in this process can be significant, and this paper investigates the impact of several measures to overcome the adverse effects on...
Persistent link: https://www.econbiz.de/10009197334
We discuss the problem of combining the conflicting objectives of equity and utilitarianism, for social policy making, in a single mathematical programming model. The definition of equity we use is the Rawlsian one of maximizing the minimum utility over individuals or classes of individuals....
Persistent link: https://www.econbiz.de/10010990618
This paper studies a multi-facility network synthesis problem, called the Two-level Network Design (TLND) problem, that arises in the topological design of hierarchical communication, transportation, and electric power distribution networks. We are given an undirected network containing two...
Persistent link: https://www.econbiz.de/10009208954
This paper presents a new integer programming model for optimal shift scheduling with multiple rest and lunch breaks, and break windows. A set-covering approach for this problem was originally developed by Dantzig (1954). Since then, a number of set-covering-based formulations have been proposed...
Persistent link: https://www.econbiz.de/10009209103
For a given planning horizon, workforce composition and set of labor requirements, personnel scheduling often reduces to solving three problems. The first is concerned with the assignment of days off; the second involves assigning workers to shifts during the day; and the third involves the...
Persistent link: https://www.econbiz.de/10009209120
This paper addresses the single-product assembly system design problem (ASDP), which seeks to minimize total cost by optimally integrating design (selecting the machine type to locate at each activated station) and operating issues (assigning tasks to observe precedence relationships and cycle...
Persistent link: https://www.econbiz.de/10009209351