A scatter search algorithm for the distributed permutation flowshop scheduling problem

The distributed permutation flowshop scheduling problem

This paper studies a new generalization of the regular permutation flowshop scheduling problem (PFSP) referred to as the distributed permutation flowshop scheduling problem or DPFSP. Under this generalization, we assume that there are a total of identical factories or shops, each one with machines disposed in series. A set of n available jobs have to be distributed among the factories and then ...

A General Variable Neighborhood Search Algorithm to Minimize Makespan of the Distributed Permutation Flowshop Scheduling Problem

This paper addresses minimizing the makespan of the distributed permutation flow shop scheduling problem. In this problem, there are several parallel identical factories or flowshops each with series of similar machines. Each job should be allocated to one of the factories and all of the operations of the jobs should be performed in the allocated factory. This problem has recently gained attent...

Improved genetic algorithm for the permutation flowshop scheduling problem

Genetic algorithms (GAs) are search heuristics used to solve global optimization problems in complex search spaces. We wish to show that the e6ciency of GAs in solving a &owshop problem can be improved signi7cantly by tailoring the various GA operators to suit the structure of the problem. The &owshop problem is one of scheduling jobs in an assembly line with the objective of minimizing the com...

A hybrid genetic algorithm for the distributed permutation flowshop scheduling problem

Permutation Flowshop Scheduling by Genetic Local Search

In this paper, the landscape for the permutation flowshop scheduling problem (PFSP) with stochastic local search and a critical block-based neighbourhood structure has been investigated. Numerical experiments using small benchmark problems show that there are good correlations between the makespans of local optima, the average distances to other local optima and the distances to the known globa...