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Multi-depot rural postman problems
Top - Tập 25 - Trang 340-372 - 2016
This paper studies multi-depot rural postman problems on an undirected graph. These problems extend the well-known undirected rural postman problem to the case where there are several depots instead of just one. Linear integer programming formulations that only use binary variables are proposed for the problem that minimizes the overall routing costs and for the model that minimizes the length of ...... hiện toàn bộ
Comments on: Stability in linear optimization and related topics. A personal tour
Top - Tập 20 - Trang 245-249 - 2011
A maximum trip covering location problem with an alternative mode of transportation on tree networks and segments
Top - Tập 22 - Trang 227-253 - 2012
In this paper the following facility location problem in a mixed planar-network space is considered: We assume that traveling along a given network is faster than traveling within the plane according to the Euclidean distance. A pair of points (A
i
,A
j
) is called covered if the time to access th...... hiện toàn bộ
On the solution of linearly constrained optimization problems by means of barrier algorithms
Top - - 2021
A new approach to multivariate adaptive regression splines by using Tikhonov regularization and continuous optimization
Top - Tập 18 - Trang 377-395 - 2010
This paper introduces a model-based approach to the important data mining tool Multivariate adaptive regression splines (MARS), which has originally been organized in a more model-free way. Indeed, MARS denotes a modern methodology from statistical learning which is important in both classification and regression, with an increasing number of applications in many areas of science, economy and tech...... hiện toàn bộ
An algorithm for a fuzzy transportation problem to select a new type of coal for a steel manufacturing unit
Top - Tập 15 - Trang 114-137 - 2007
Manufacturing of steel involves thermal energy intensive processes with coal as the major input. Energy generated is a direct function of ash content of coal and as such it weighs very high as regards the choice of coal. In this paper, we study a multiobjective transportation problem to introduce a new type of coal in a steel manufacturing unit in India. The use of new type of coal serves three n...... hiện toàn bộ
An approach for solving a modification of the extended rapid transit network design problem
Top - Tập 17 - Trang 320-334 - 2008
In this paper we deal with a slight modification of the extended rapid transit network design problem to allow circular lines. A two-stage approach is proposed for solving this problem. In the first stage, an integer model is solved for selecting the stations to be constructed and the links between them. It drastically reduces the dimension of a modification of a 0–1 model given in the literature ...... hiện toàn bộ
Reliability assessment of a discrete time cold standby repairable system
Top - Tập 29 - Trang 613-628 - 2020
This paper is concerned with the study of a discrete time repairable system consisting of one active and one standby component. The lifetime and repair time are assumed to have discrete phase-type distributions. The system’s lifetime is represented as a compound random variable. A matrix-based expression for the probability generating function of the system’s lifetime is obtained based on the phas...... hiện toàn bộ
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