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arXiv 2109.03357math.OC
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带产品成本的(受约束)品类优化问题的精确求解方法

An Exact Method for (Constrained) Assortment Optimization Problems with Product Costs

Markus Leitner, Andrea Lodi, Roberto Roberti, Claudio Sole

AI总结:

针对带产品成本的NP难品类优化问题,本文提出首个精确求解方法,基于Feldman和Topaloglu近似方法构建紧界定程序,可在约0.2秒内求解千种产品规模实例,并扩展至容量约束和混合多项Logit模型。

摘要:

我们研究在客户按照多项Logit模型进行选择时,存在产品特定成本情况下的品类决策优化问题。该问题是NP难问题,文献中已提出近似求解方法,以便在可处理的方式下获得下界和上界。我们提出了该问题的首个精确求解方法,并证明对于最多包含一千种产品的实例,平均可在约0.2秒内找到可证明最优的品类。具体而言,我们提出了一种基于Feldman和Topaloglu(2015a)近似方法的定界程序,以极少的计算时间提供紧的下界和上界。我们展示了如何利用这些界有效识别最优品类。我们还描述了如何调整我们的方法以处理品类上的基数约束或空间/资源容量约束,以及在混合多项Logit模型下的品类优化。在这两种情况下,与文献中的精确方法相比,我们的求解方法都提供了显著的计算加速。

英文摘要:

We study the problem of optimizing assortment decisions in the presence of product-specific costs when customers choose according to a multinomial logit model. This problem is NP-hard and approximate solutions methods have been proposed in the literature to obtain both lower and upper bounds in a tractable manner. We propose the first exact solution method for this problem and show that provably optimal assortments of instances with up to one thousand products can be found, on average, in about two tenths of a second. In particular, we propose a bounding procedure based on the approximation method of Feldman and Topaloglu (2015a) to provide tight lower and upper bounds at a fraction of their computing times. We show how these bounds can be used to effectively identify an optimal assortment. We also describe how to adapt our approach to handle cardinality or space/resource capacity constraints on the assortment as well as assortment optimization under a mixed-multinomial logit model. In both cases, our solution method provides significant computational boosts compared to exact methods from the literature.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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