On maintenance of the opportunity list for class-teacher timetable problems

Smith, Graham

doi:10.1145/360715.360725

Cited by 4 publications

(2 citation statements)

References 7 publications

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“…The null hypothesis, H 0 in Equation ( 14), indicates that the means of the results are equal. The alternative hypothesis, Equation H 1 in (15), points out that the means are not equals or at least one is different. Statistical analysis tests whether the null hypothesis is true.…”

Section: Discussionmentioning

confidence: 99%

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Metaheuristic with Cooperative Processes for the University Course Timetabling Problem

et al. 2022

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This work presents a metaheuristic with distributed processing that finds solutions for an optimization model of the university course timetabling problem, where collective communication and point-to-point communication are applied, which are used to generate cooperation between processes. The metaheuristic performs the optimization process with simulated annealing within each solution that each process works. The highlight of this work is presented in the algorithmic design for optimizing the problem by applying cooperative processes. In each iteration of the proposed heuristics, collective communication allows the master process to identify the process with the best solution and point-to-point communication allows the best solution to be sent to the master process so that it can be distributed to all the processes in progress in order to direct the search toward a space of solutions which is close to the best solution found at the time. This search is performed by applying simulated annealing. On the other hand, the mathematical representation of an optimization model present in the literature of the university course timing problem is performed. The results obtained in this work show that the proposed metaheuristics improves the results of other metaheuristics for all test instances. Statistical analysis shows that the proposed metaheuristic presents a different behavior from the other metaheuristics with which it is compared.

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Section: Discussionmentioning

confidence: 99%

“…Subsequently, at the beginning of the 1970s, more generic techniques began to be applied to solve the problem. Some of the best-known research includes algorithms based on integer programming [15] and network flow [16][17][18], among others.…”

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confidence: 99%