A polynomial-time algorithm for the two-machine unit-time release-date job-shop schedule-length problem

Two - Machine Unit - Time Release - Date Job

A Fuzzy Algorithm for the m-Machine, n-Job Flow Shop Sequencing Problem

Flow shop sequencing problem is included in NP-hard problems and a number of heuristic methods have been developed to solve it. Most of these methods are offered for the crisp processing time. However fuzzy algorithm is appropriate for the problems with fuzzy processing time. This paper presents a method in which an algorithm is used to minimize make span of flow shop with fuzzy processing time...

A Fuzzy Algorithm for the m-Machine, n-Job Flow Shop Sequencing Problem

Flow shop sequencing problem is included in NP-hard problems and a number of heuristic methods have been developed to solve it. Most of these methods are offered for the crisp processing time. However fuzzy algorithm is appropriate for the problems with fuzzy processing time. This paper presents a method in which an algorithm is used to minimize make span of flow shop with fuzzy processing time...

A New Branch-and-Bound for the Problem of Mean Completion Time for the Single Machine with Release Time

Preemptively scheduling a set of independent jobs with release time on one processor is a historical problem. In this paper, the same problem has been considered in which objective is to minimize the mean flow time. To prepare a perfect branch-and-bound, some optimality conditions have been represented and they have been compared with the optimality conditions which have been proposed before. O...

A polynomial-time algorithm for a flow-shop batching problem with equal-length operations

A flow-shop batching problem with consistent batches is considered in which the processing times of all jobs on each machine are equal to p and all batch set-up times are equal to s. In such a problem one has to partition the set of jobs into batches and to schedule the batches on each machine. The processing time of a batch Bi is the sum of processing times of operations in Bi and the earliest...