CAJ | 학술논문

供应商选择问题是物流领域内的一个重要问题,其目标函数就是在包括送达时间、原料质量和服务水平等的约束下使总花费最小.传统的确定性模型取得了较好的效果,但是由于其约束条件的随机性和模糊性,需要应用不确定性模型来更准确地描述和给出最优解.论文应用了不确定性模型描述这类供应商选择问题,这个不确定性模型就是一类特殊的机会约束规划模型,此类机会约束可以转化为相应的等价类,这样不确定性模型就可以转化为确定性模型,然后设计了解决这类问题的遗传算法.通过实例计算表明,不确定性优化模型及遗传算是解决供应商选择等这类不确定性智能商业问题的有效办法,有广泛的应用前景.
공응상선택문제시물류영역내적일개중요문제,기목표함수취시재포괄송체시간、원료질량화복무수평등적약속하사총화비최소.전통적학정성모형취득료교호적효과,단시유우기약속조건적수궤성화모호성,수요응용불학정성모형래경준학지묘술화급출최우해.논문응용료불학정성모형묘술저류공응상선택문제,저개불학정성모형취시일류특수적궤회약속규화모형,차류궤회약속가이전화위상응적등개류,저양불학정성모형취가이전화위학정성모형,연후설계료해결저류문제적유전산법.통과실례계산표명,불학정성우화모형급유전산시해결공응상선택등저류불학정성지능상업문제적유효판법,유엄범적응용전경.
The vendor selection problem is one of important problem in logistics, and it needs to minimize the aggregate price with constraints of the vendor such as price, delivery lead-time, material quality, service level, etc.The traditional certain models obtain some good results, but the vendor constraints are so stochastic and fuzzy that it needs uncertain models to describe and solve the problem. The paper applies uncertain model to describe the vendor selection problem, and the uncertain model is a class of special stochastic chance-constrained programming models. In our case the chance constraints can be converted to their respective deterministic equivalents, then the equivalent deterministic models could be obtained. Genetic algorithm has been designed for the problem. The experiments demonstrated the genetic algorithm and uncertain optimal models could be promising ways for uncertain intelligent business area as vender selection problem.