取值为模糊数的连续模糊随机需求报童问题  

Newsboy problem with continuous fuzzy random demand valued of fuzzy number

作　　者：杨飞雪[1] 胡劲松[1] 

机构地区：[1]青岛大学管理科学与工程系,山东青岛266071

出　　处：《计算机集成制造系统》2010年第4期834-839,846,共7页Computer Integrated Manufacturing Systems

基　　金：国家自然科学基金资助项目(70671056);山东省自然科学基金资助项目(Y2008H07)~~

摘　　要：将取值为模糊数的随机需求引入报童问题,建立了模糊随机利润模型;给出其模糊期望模型。利用模糊数的符号距离反模糊化方法给出了其模糊期望利润的符号距离函数形式;证明了该函数的凹性,进而获得了订货量的最优性条件。Continuous random demand valued of fuzzy number was introduced into newsboy problem,and the fuzzy random profit model was formulated.Fuzzy expectation model corresponding to the fuzzy random profit model was presented.By means of the signed distance defuzzification method of fuzzy number,the signed distance estimation function of the fuzzy expectation profit was deduced.Finally,the concave characteristics of the signed distance estimation function were proved so as to obtain the optimal order quantity.

关 键 词：报童问题 模糊数 随机需求 符号距离 订货量 

分 类 号：F274[经济管理—企业管理]