A two-stage genetic algorithm for solving the transportation problem with fuzzy demands and fuzzy supplies

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題名:	A two-stage genetic algorithm for solving the transportation problem with fuzzy demands and fuzzy supplies
作者:	Lin, Feng-Tse;Tsai, Tzong-Ru
貢獻者:	淡江大學統計學系
關鍵詞:	Genetic algorithms;Fuzzy transportation problem;Fuzzy demand;Fuzzy supply
日期:	2009-12
上傳時間:	2011-10-23 16:26:40 (UTC+8)
出版者:	Kumamoto: ICIC International
摘要:	This paper investigates solving the transportation problem with fuzzy demands and fuzzy supplies using a two-stage genetic algorithm (GA). At the ﬁrst stage, we simulate a fuzzy number by distributing a fuzzy value into certain partition points. We then use GA to evolve the values in each partition point and the ﬁnal values represent the membership grade of that fuzzy number. As a result, we obtain the estimated values of all fuzzy demands and fuzzy supplies and the original fuzzy problem becomes a defuzziﬁed instance. The best solution to the defuzzified instance is then solved by the following stage via evolution process. The experimental results show that the proposed two-stage GA approach outperforms the other fuzzy approach to solving the transportation problem with fuzzy demands and fuzzy supplies.
關聯:	International Journal of Innovative Computing, Information and Control 5(12)pt.B, pp.4775-4785
顯示於類別:	[統計學系暨研究所] 期刊論文

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