Parallel-Batch Scheduling and Transportation Coordination with Waiting Time Constraint

This paper addresses a parallel-batch scheduling problem that incorporates transportation of raw materials or semifinished products before processing with waiting time constraint. The orders located at the different suppliers are transported by some vehicles to a manufacturing facility for further p...

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Main Authors: Hua Gong, Daheng Chen, Ke Xu
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1155/2014/356364
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author Hua Gong
Daheng Chen
Ke Xu
author_facet Hua Gong
Daheng Chen
Ke Xu
author_sort Hua Gong
collection DOAJ
description This paper addresses a parallel-batch scheduling problem that incorporates transportation of raw materials or semifinished products before processing with waiting time constraint. The orders located at the different suppliers are transported by some vehicles to a manufacturing facility for further processing. One vehicle can load only one order in one shipment. Each order arriving at the facility must be processed in the limited waiting time. The orders are processed in batches on a parallel-batch machine, where a batch contains several orders and the processing time of the batch is the largest processing time of the orders in it. The goal is to find a schedule to minimize the sum of the total flow time and the production cost. We prove that the general problem is NP-hard in the strong sense. We also demonstrate that the problem with equal processing times on the machine is NP-hard. Furthermore, a dynamic programming algorithm in pseudopolynomial time is provided to prove its ordinarily NP-hardness. An optimal algorithm in polynomial time is presented to solve a special case with equal processing times and equal transportation times for each order.
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institution OA Journals
issn 2356-6140
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language English
publishDate 2014-01-01
publisher Wiley
record_format Article
series The Scientific World Journal
spelling doaj-art-c77a4ca654d14ee79b7693077458cecf2025-08-20T02:20:06ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/356364356364Parallel-Batch Scheduling and Transportation Coordination with Waiting Time ConstraintHua Gong0Daheng Chen1Ke Xu2College of Science, Shenyang Ligong University, Shenyang 100159, ChinaCollege of Science, Shenyang Ligong University, Shenyang 100159, ChinaCollege of Science, Shenyang Ligong University, Shenyang 100159, ChinaThis paper addresses a parallel-batch scheduling problem that incorporates transportation of raw materials or semifinished products before processing with waiting time constraint. The orders located at the different suppliers are transported by some vehicles to a manufacturing facility for further processing. One vehicle can load only one order in one shipment. Each order arriving at the facility must be processed in the limited waiting time. The orders are processed in batches on a parallel-batch machine, where a batch contains several orders and the processing time of the batch is the largest processing time of the orders in it. The goal is to find a schedule to minimize the sum of the total flow time and the production cost. We prove that the general problem is NP-hard in the strong sense. We also demonstrate that the problem with equal processing times on the machine is NP-hard. Furthermore, a dynamic programming algorithm in pseudopolynomial time is provided to prove its ordinarily NP-hardness. An optimal algorithm in polynomial time is presented to solve a special case with equal processing times and equal transportation times for each order.http://dx.doi.org/10.1155/2014/356364
spellingShingle Hua Gong
Daheng Chen
Ke Xu
Parallel-Batch Scheduling and Transportation Coordination with Waiting Time Constraint
The Scientific World Journal
title Parallel-Batch Scheduling and Transportation Coordination with Waiting Time Constraint
title_full Parallel-Batch Scheduling and Transportation Coordination with Waiting Time Constraint
title_fullStr Parallel-Batch Scheduling and Transportation Coordination with Waiting Time Constraint
title_full_unstemmed Parallel-Batch Scheduling and Transportation Coordination with Waiting Time Constraint
title_short Parallel-Batch Scheduling and Transportation Coordination with Waiting Time Constraint
title_sort parallel batch scheduling and transportation coordination with waiting time constraint
url http://dx.doi.org/10.1155/2014/356364
work_keys_str_mv AT huagong parallelbatchschedulingandtransportationcoordinationwithwaitingtimeconstraint
AT dahengchen parallelbatchschedulingandtransportationcoordinationwithwaitingtimeconstraint
AT kexu parallelbatchschedulingandtransportationcoordinationwithwaitingtimeconstraint