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Title:	Methods for path and service planning under route constraints
Authors:	劉昭麟 Liu,Chao-Lin;Pai,Tun-Wen
Contributors:	資科系
Date:	2006-01
Issue Date:	2014-09-11 10:44:45 (UTC+8)
Abstract:	We examine methods for a special class of path-planning problems in which the routes are constrained. The scenario could happen, for instance, in transit systems where passengers cannot order drivers to change the routes of public buses to meet individual travel needs. General search algorithms are applicable to this class of problems, but may not find the desired solution as efficiently as possible. This paper reports three different strategies that capture the route constraints for improving efficiency of path planning algorithms. The first strategy applies hierarchical planning, and the rest employs matrices for encoding route constraints. We propose and prove that the Q matrix is instrumental for capturing route constraints and measuring quality of service of the transportation network. Moreover, we discuss how we may apply the Q matrix in designing admissible heuristic functions that are crucial for applying the A* algorithm for best-path planning under route constraints.
Relation:	Int. J. of Computer Applications in Technology,25(1),40-49
Data Type:	article
DOI 連結:	http://dx.doi.org/10.1504/IJCAT.2006.008668
DOI:	10.1504/IJCAT.2006.008668
Appears in Collections:	[資訊科學系] 期刊論文

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