The main objective of the working paper series of the IIMA is to help faculty members to test out their research findings at the pre-publication stage. Abstract We address the permutation flowshop scheduling problem with earliness and tardiness penalties (E/T) and common due date of jobs. Large number of process and discrete parts industries follow flowshop type of production process. There are...

In this paper we study the problem of scheduling n deteriorating jobs on m identical parallel machines. Each job’s processing time is a nondecreasing function of its start time. The problem is to determine an optimal combination of the due-date and schedule so as to minimize the sum of the due-date, earliness and tardiness penalties. We show that this problem is NP-hard, and we present a heuris...

In the present work, an industrial case study has been considered for multi-objective flow shop scheduling problem including the sequence dependent set up time. The multi-objectives include the minimization of sum of total weighted squared tardiness, total weighted squared earliness, makespan and number of tardy jobs. Industries can select the optimal sequence with respect to required objective...

We address the problem of determining schedules for static, single-machine scheduling problems where the objective is to minimize the sum of weighted tardiness and weighted earliness. We develop optimal and heuristic procedures for the special case of weights that are proportional to the processing times of the respective jobs. The optimal procedure uses dominance properties to reduce the numbe...

This paper considers a scheduling problem for minimizing the sum of the absolute deviations of completion times from the due dates of all jobs (earliness-tardiness) on a single batch processing machine. For this problem, each job has a corresponding processing time and size and all jobs have the common due date. The problem under study is NP-hard and hence a hybrid genetic algorithm based on a ...

Family scheduling problems are characterized by a setup time structure where setups are only required between jobs from different families. We consider the problem of scheduling job families on parallel machines to minimize weighted deviation about a common due date. Various special cases of this problem have been considered in the literature. This note summarizes known complexity results and i...

Abstract Most Workload Control literature assumes that delivery performance is determined by tardiness related measures only. While this may be true for companies directly deliver to end-customers, make-to-stock or firms are part of supply chains, producing early often means large inventories in the finished goods warehouse penalties incurred downstream chain. Some earlier studies used a so-cal...

This paper proposes exact algorithms to generate optimal timing schedules for a given sequence of operations in job shops minimize the total weighted earliness and tardiness. The are proposed two shop scheduling scenarios, one involving due dates only last operation each other all on jobs. Computational experiments benchmark problem instances reveal that, case scenario job, faster than those ge...

In this research paper, n jobs have to be scheduled on one-machine minimize the sum of maximum earliness and tardiness. We solved a series bi-criteria scheduling problems that related Three new algorithms were presented, two for hierarchical objective one simultaneous objective. Using results these algorithms, we This considered as NP-hard problem, it is also irregular, so missed some helpful p...