Title: A multi objective solid transportation problem in fuzzy, bi-fuzzy environment via genetic algorithm
Authors: Sutapa Pramanik; D.K. Jana; K. Maity
Addresses: Deulia Balika Bidyamandir, Deulia, Purba Midna Pur-721154, West Bengal, India ' Department of Applied Sciences, Haldia Institute of Technology, Haldia, Purba Midna Pur-721657, West Bengal, India ' Department of Mathematics, Mugberia Gangadhar Mahavidyalaya, Mugberia, Purba Medinipur-721425, West Bengal, India
Abstract: In this paper, we concentrate on developing a bi-fuzzy multi objective transportation problem (MOSTP) according to bi-fuzzy expected value method (EVM). In a transportation model, the available discount is normally offered on items/criteria, etc., in the form of all unit discount (AUD) or incremental quantity discount (IQD) or combination of these two. Here, transportation model is considered with fixed charges and vehicle costs where AUD, IQD or combination of AUD and IQD on the price depending upon the amount is offered and varies on the choice of origin, destination and conveyance. To solve the problem, multi objective genetic algorithm (MOGA) based on Roulette wheel selection, arithmetic crossover and uniform mutation has been suitably developed and applied. To illustrate the models, numerical examples have been presented. Here, two types of problems are introduced and the corresponding results are obtained. To provide better customer service, the entropy function is considered.
Keywords: bi-fuzzy EVM; expected value method; multiobjective genetic algorithms; MOGA; solid transport problem; STP; entropy; all unit discount; AUD; incremental quantity discount; IQD; fixed charges; vehicle costs; customer service.
International Journal of Advanced Operations Management, 2014 Vol.6 No.1, pp.4 - 26
Received: 27 Aug 2012
Accepted: 04 Dec 2012
Published online: 03 Mar 2014 *