文档介绍：河北大学
硕士学位论文
两阶段模糊选址与分配问题的研究
姓名:申思远
申请学位级别:硕士
专业:运筹学与控制论
指导教师:刘彦奎
20100501
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Abstract
Abstract
Location-allocation problem is to study that how to locate the facility and how
to allocate the products for the customers. In realistic location-allocation problems,
the input parameters usually have fuzziness, so we should adopt a theoretical tool
that deal with fuzziness to study location-allocation problem.
Under this consideration, this thesis takes credibility theory as the theoreti-
cal foundation to study location-allocation problem. First, this thesis presents two
class of two-stage fuzzy location-allocation models—the expected value location-
allocation model and the minimum-risk location-allocation model, and studies the
properties of the second-stage problem. Considering customers demands are chara-
terized by fuzzy variables that have infinite supports, we apply an approximation
method to turn them into a discrete ones that taking finite values. Based on approx-
imating method, we present putational method pute the expected
value recourse function and the credibility recourse function. At last, we design a
hybrid algorithm bines approximation method and particle swarm opti-
mization, and present one numerical example to illustrate the effectiveness of the
designed a