Jatinder Gupta | University of Alabama in Huntsville (original) (raw)
Papers by Jatinder Gupta
Engineering Applications of Artificial Intelligence
Proceeding of Flexible Automation and Integrated Manufacturing 1994
International Journal of Production Research
Flexible Services and Manufacturing Journal
Renewable and Sustainable Energy Reviews
Journal of Parametrics, 1984
The number of evidences found in a digital crime scene has burgeoned significantly over the past ... more The number of evidences found in a digital crime scene has burgeoned significantly over the past few years. In addition, the demand for delivering accurate results within a given time deadline has increased. The major challenges coinciding with these aforementioned objectives are to investigate the right set of evidences and to allocate appropriate times for their investigation. In this paper, we present a mixed integer linear programming (MILP) model to analyze the problem of allocating optimal investigation times for evidences involving a single investigator. The objective is to maximize the overall effectiveness of a forensic investigation procedure. We particularly focus on the time critical digital forensic cases, in which results have to be finalized in a court of law within a specified time deadline. While the general problem is NP-hard, two special cases are illustrated to be optimally solvable in polynomially computational effort. Two heuristic algorithms are proposed to so...
Journal of Parametrics, 1985
Computers & Industrial Engineering, 2021
Journal of Parametrics, 1985
Journal of the Operational Research Society, 2019
Computers & Industrial Engineering, 2019
Engineering Optimization, 2018
Computers & Industrial Engineering, 2018
International Journal of Production Research, 2014
ABSTRACT This paper focuses on the permutation flowshop group scheduling problem to minimise make... more ABSTRACT This paper focuses on the permutation flowshop group scheduling problem to minimise makespan, which is typically found in flowline manufacturing cells. In contrast to classical flowshop scheduling, it is characterised by a scheduling task at two levels: on the one hand, jobs within part families and on the other hand, a number of part families have to be sequenced. Integrating sequence-dependent set-up times for every changeover of families, this problem can represent practical cases. By modelling each family as a job with time lags, some specific problem characteristics of the group scheduling problem are pointed out. It is shown that generating job sequences by minimising the sum of inserted machine idle times instead of makespan on the first level of scheduling and the use of the schedule heads on the second level can lead to significant improvements for some test problems. These findings are used for the improvement of existing constructive heuristic algorithms, whose effectiveness is assessed for several test instances with sequence-dependent family set-up times.
Journal of Scheduling, 2017
This paper addresses a batch scheduling problem in flow shop production systems, where job famili... more This paper addresses a batch scheduling problem in flow shop production systems, where job families are formed based on setup similarities. In order to improve setup efficiency, we consider batching decisions in our solution procedure. Due to its high practical relevance, the batch availability assumption is also adopted in this study. In the presence of sequence-dependent setup times, it is proved that a permutation flow shop is generally not optimal. Therefore, our objective is to determine solutions with inconsistent batches, which essentially lead to non-permutation schedules, to minimize makespan. After examining structural properties, we develop a tabu search algorithm with multiple neighbourhood functions. Computational results confirm the remarkable benefits of batching decisions. Our algorithm also outperforms some well-known and well-performing approaches.
Journal of Management Information Systems, 1989
A survey of AACSB Schools and Colleges of Business that offer gradu- ate programs indicates that ... more A survey of AACSB Schools and Colleges of Business that offer gradu- ate programs indicates that even though more schools are creating indepen- dent departments of management/computer information systems, the graduate mis course is similar to the undergraduate mis course in about half of the schools and a course later in the program (with a number of prerequisites) in about half of the schools. Due to this disparity in responding schools, ?he results are mixed. The topics covered by most schools have been covered in mis courses for a number of years. More recent topics such as strategic uses of mis, end-user computing, and artificial intelligence are foreseen for the future by some respondents, but they do not appear to have made inroads into the content of the graduate mis course.
Computers & Operations Research, 2016
IEEE Security & Privacy, 2017
Engineering Applications of Artificial Intelligence
Proceeding of Flexible Automation and Integrated Manufacturing 1994
International Journal of Production Research
Flexible Services and Manufacturing Journal
Renewable and Sustainable Energy Reviews
Journal of Parametrics, 1984
The number of evidences found in a digital crime scene has burgeoned significantly over the past ... more The number of evidences found in a digital crime scene has burgeoned significantly over the past few years. In addition, the demand for delivering accurate results within a given time deadline has increased. The major challenges coinciding with these aforementioned objectives are to investigate the right set of evidences and to allocate appropriate times for their investigation. In this paper, we present a mixed integer linear programming (MILP) model to analyze the problem of allocating optimal investigation times for evidences involving a single investigator. The objective is to maximize the overall effectiveness of a forensic investigation procedure. We particularly focus on the time critical digital forensic cases, in which results have to be finalized in a court of law within a specified time deadline. While the general problem is NP-hard, two special cases are illustrated to be optimally solvable in polynomially computational effort. Two heuristic algorithms are proposed to so...
Journal of Parametrics, 1985
Computers & Industrial Engineering, 2021
Journal of Parametrics, 1985
Journal of the Operational Research Society, 2019
Computers & Industrial Engineering, 2019
Engineering Optimization, 2018
Computers & Industrial Engineering, 2018
International Journal of Production Research, 2014
ABSTRACT This paper focuses on the permutation flowshop group scheduling problem to minimise make... more ABSTRACT This paper focuses on the permutation flowshop group scheduling problem to minimise makespan, which is typically found in flowline manufacturing cells. In contrast to classical flowshop scheduling, it is characterised by a scheduling task at two levels: on the one hand, jobs within part families and on the other hand, a number of part families have to be sequenced. Integrating sequence-dependent set-up times for every changeover of families, this problem can represent practical cases. By modelling each family as a job with time lags, some specific problem characteristics of the group scheduling problem are pointed out. It is shown that generating job sequences by minimising the sum of inserted machine idle times instead of makespan on the first level of scheduling and the use of the schedule heads on the second level can lead to significant improvements for some test problems. These findings are used for the improvement of existing constructive heuristic algorithms, whose effectiveness is assessed for several test instances with sequence-dependent family set-up times.
Journal of Scheduling, 2017
This paper addresses a batch scheduling problem in flow shop production systems, where job famili... more This paper addresses a batch scheduling problem in flow shop production systems, where job families are formed based on setup similarities. In order to improve setup efficiency, we consider batching decisions in our solution procedure. Due to its high practical relevance, the batch availability assumption is also adopted in this study. In the presence of sequence-dependent setup times, it is proved that a permutation flow shop is generally not optimal. Therefore, our objective is to determine solutions with inconsistent batches, which essentially lead to non-permutation schedules, to minimize makespan. After examining structural properties, we develop a tabu search algorithm with multiple neighbourhood functions. Computational results confirm the remarkable benefits of batching decisions. Our algorithm also outperforms some well-known and well-performing approaches.
Journal of Management Information Systems, 1989
A survey of AACSB Schools and Colleges of Business that offer gradu- ate programs indicates that ... more A survey of AACSB Schools and Colleges of Business that offer gradu- ate programs indicates that even though more schools are creating indepen- dent departments of management/computer information systems, the graduate mis course is similar to the undergraduate mis course in about half of the schools and a course later in the program (with a number of prerequisites) in about half of the schools. Due to this disparity in responding schools, ?he results are mixed. The topics covered by most schools have been covered in mis courses for a number of years. More recent topics such as strategic uses of mis, end-user computing, and artificial intelligence are foreseen for the future by some respondents, but they do not appear to have made inroads into the content of the graduate mis course.
Computers & Operations Research, 2016
IEEE Security & Privacy, 2017