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政大機構典藏 > 商學院 > 企業管理學系 > 期刊論文 > Item 140.119/73707

Please use this identifier to cite or link to this item: https://nccur.lib.nccu.edu.tw/handle/140.119/73707

Title:	Finding theKth shortest path in a time-schedule network
Authors:	Tang, Kwei;Chen, Yen-Liang 唐揆
Contributors:	企管系
Keywords:	無
Date:	2005
Issue Date:	2015-03-09 16:18:11 (UTC+8)
Abstract:	We consider the problem of finding the Kth shortest path for a time-schedule network, where each node in the network has a list of prespecified departure times, and departure from the node can take place only at one of these departure times. We develop a polynomial time algorithm independent of K for finding the Kth shortest path. The proposed algorithm constructs a map structure at each node in the network, using which we can directly find the Kth shortest path without having to enumerate the first K − 1 paths. Since the same map structure is used for different K values, it is not necessary to reconstruct the table for additional paths. Consequently, the algorithm is suitable for directly finding multiple shortest paths in the same network. Furthermore, the algorithm is modified slightly for enumerating the first K shortest paths and is shown to have the lowest possible time complexity under a condition that holds for most practical networks.
Relation:	Naval Research Logistics , 52(1), 93-102
Data Type:	article
DOI 連結:	http://dx.doi.org/10.1002/nav.20061
DOI:	10.1002/nav.20061
Appears in Collections:	[企業管理學系] 期刊論文

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