scholarly journals Hybrid Search Heuristics to Schedule Bottleneck Facility in Manufacturing Systems

Author(s):  
Ponnambalam S.G. ◽  
Jawahar N. ◽  
Maheswaran. R.

2001 ◽  
Vol 10 (03) ◽  
pp. 431-449 ◽  
Author(s):  
WEE-KIT HO ◽  
JUAY CHIN ANG ◽  
ANDREW LIM

The vehicle routing problem with time windows (VRPTW) is an extension of the well-known vehicle routing problem (VRP). It involves a fleet of homogeneous vehicles, originating and terminating at a central depot, with limited capacity and maximum travel time to service a set of customers with known demands and service-time windows. The objective is to find a set of feasible routes that minimizes the total costs using some measures of solution quality. This paper focuses on the study of a hybrid of two search heuristics, Tabu Search (TS) and Genetic Algorithm (GA) on VRPTW. TS is a local search technique that has been successfully applied to many NP-complete problems. On the other hand, GA which is capable of searching multiple search areas in a search space is good in diversification. In this paper, we create a hybrid that combines the strengths of the two search heuristics. Experimental results indicate that such a hybrid outperforms the individual heuristics alone.







2001 ◽  
Vol 121 (6) ◽  
pp. 1035-1040 ◽  
Author(s):  
Shinsuke Tamura ◽  
Tetsuo Hasegawa ◽  
Toshibumi Seki




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