Publication type: Article in scientific journal
Type of review: Peer review (publication)
Title: Scheduling with time-dependent discrepancy times
Authors : Jaehn, Florian
Sedding, Helmut
et. al : No
DOI : 10.1007/s10951-016-0472-2
Published in : Journal of Scheduling
Volume(Issue) : 19
Issue : 6
Pages : 737
Pages to: 757
Issue Date: 2016
Publisher / Ed. Institution : Springer
ISSN: 1094-6136
1099-1425
Language : English
Subjects : Time-dependent scheduling; Nonmonotonic piecewise-linear processing time; Convex processing time; Single-machine scheduling; Assembly-line worker path minimization
Subject (DDC) : 005: Computer programming, programs and data
658.5: Production management
Abstract: In time-dependent scheduling, various processing time functions are studied, yet absolute value functions have surprisingly been omitted from the discussion. Such a processing time function increases linearly with a job’s discrepancy from its ideal midtime. The objective is to find a schedule that minimizes the makespan, introducing the discrepancy time minimization problem. This single-machine scheduling problem with time-dependent processing times is motivated by optimization of walking times on a car assembly line. Its decision version is NP hard, as we show by reduction of the even-odd partition problem. For the variant with known start time, we develop several heuristics. Further insights form lower bounds and dominance rules for a branch-and-bound search. Numerical experiments show the performance of our algorithms on problem instances of up to 60 jobs. For the variant with common ideal midtime and flexible start time, we present a polynomial-time algorithm.
URI: https://digitalcollection.zhaw.ch/handle/11475/18590
Fulltext version : Published version
License (according to publishing contract) : Licence according to publishing contract
Departement: School of Engineering
Organisational Unit: Institute of Data Analysis and Process Design (IDP)
Appears in Collections:Publikationen School of Engineering

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