Browsing by Author "Teodorovic, D"

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A spatial and temporal bi-criteria parallel-savings-based heuristic algorithm for solving vehicle routing problems with time windows
(1997)
Tzeng, GH
;
Huang, WC
;
Teodorovic, D
;
運輸與物流管理系註：原交通所+運管所
;
Department of Transportation and Logistics Management
This paper proposes a spatial and temporal bi-criteria parallel-savings-based heuristic algorithm for solving vehicle-routing problems with time windows. The purpose of the algorithm is to reduce transportation costs and to satisfy the specific times, within time windows, which are required by customers. For evaluating the performance of the algorithm, two separate sets of time windows are created by generating data randomly. The test results reveal that both the preciseness and stability of the solutions perform much better than those based on the insertion method.
Fuzzy bicriteria multi-index transportation problems for coal allocation planning of Taipower
(1996-11-22)
Tzeng, GH
;
Teodorovic, D
;
Hwang, MJ
;
運輸與物流管理系註：原交通所+運管所
;
Department of Transportation and Logistics Management
Taipower, the official electricity authority of Taiwan, encounters several difficulties in planning annual coal purchase and allocation schedule, e.g., with multiple sources, multiple destinations, multiple coal types, different shipping vessels, and even in uncertain demand and supply. In this study, these concerns are formulated as a fuzzy bicriteria multi-index transportation problem. Furthermore, an effective and interactive algorithm is proposed which combines reducing index method and interactive fuzzy multi-objective linear programming technique to cope with a complicated problem which may be prevalent in other industries. Results obtained in this study clearly demonstrate that this model can not only satisfy more of the actual requirements of the integral system but also offer more information to the decision makers (DMs) for reference in favor of exalting decision making quality.
Fuzzy bicriteria multi-index transportation problems for coal allocation planning of Taipower
(1996-11-22)
Tzeng, GH
;
Teodorovic, D
;
Hwang, MJ
;
運輸與物流管理系註：原交通所+運管所
;
Department of Transportation and Logistics Management
Taipower, the official electricity authority of Taiwan, encounters several difficulties in planning annual coal purchase and allocation schedule, e.g., with multiple sources, multiple destinations, multiple coal types, different shipping vessels, and even in uncertain demand and supply. In this study, these concerns are formulated as a fuzzy bicriteria multi-index transportation problem. Furthermore, an effective and interactive algorithm is proposed which combines reducing index method and interactive fuzzy multi-objective linear programming technique to cope with a complicated problem which may be prevalent in other industries. Results obtained in this study clearly demonstrate that this model can not only satisfy more of the actual requirements of the integral system but also offer more information to the decision makers (DMs) for reference in favor of exalting decision making quality.