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A Genetic Algorithm for Scheduling Alternative Tasks Subject to Technical Failure
Fontes Dalila B M M
Goncalves Jose Fernando
conference on Optimization Control and Applications in the Information Age, 2014-6-15 ~ 2014-6-20, pp 139-152, 2015
Summary
Nowadays, organizations are often faced with the development of complex and innovative projects. This type of projects often involves performing tasks which are subject to failure. Thus, in many such projects several possible alternative actions are considered and performed simultaneously. Each alternative is characterized by cost, duration, and probability of technical success. The cost of each alternative is paid at the beginning of the alternative and the project payoff is obtained whenever an alternative has been completed successfully. For this problem one wishes to find the optimal schedule, i.e., the starting time of each alternative, such that the expected net present value is maximized. This problem has been recently proposed in Ranjbar (Int Trans Oper Res 20(2):251-266, 2013), where a branch-and-bound approach is reported. Since the problem is NP-Hard, here we propose to solve the problem using genetic algorithms.
Keywords
Scheduling under activity failure; Maximization of expected net present value; Biased random-key genetic algorithms
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