arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1805.01136cs.LGstat.ML
收藏

客户协变量的非参数定价分析

Nonparametric Pricing Analytics with Customer Covariates

University of Toronto(多伦多大学);The Hong Kong University of Science and Technology(香港科技大学)

Ningyuan Chen, Guillermo Gallego

摘要:

个性化定价分析正在成为零售业的重要工具。在观察每个到达客户的个性化信息后,公司需要根据收入,教育背景,过去的购买历史等协变量制定相应的价格,以获取更多的收入。对于新进入者来说,缺乏历史数据可能会严重限制个性化定价的能力和盈利能力。我们提出了一个非参数定价策略,同时学习客户的偏好的基础上的协变量,并在有限的时间内最大化的预期收入。该策略不依赖于关于个性化信息如何影响消费者偏好的任何先验假设(例如线性模型)。它自适应地将协变量空间划分为更小的bin(超矩形),并根据协变量和偏好对客户进行聚类,为属于同一聚类的客户提供类似的价格,权衡粒度和准确性。我们表明,该算法实现了遗憾的顺序$O(\log(T)^2 T^{(2+d)/(4+d)})$,其中$T$是地平线的长度和$d$是维度的协变量。它改善了目前的遗憾,在文献\citep{slivkins2014contextual},温和的技术条件下,在定价的背景下(平滑和本地的价格)。我们还证明,没有政策可以实现一个遗憾小于$O(T^{(2+d)/(4+d)})$为一个特定的实例,从而证明了近最优的建议政策。

英文摘要:

Personalized pricing analytics is becoming an essential tool in retailing. Upon observing the personalized information of each arriving customer, the firm needs to set a price accordingly based on the covariates such as income, education background, past purchasing history to extract more revenue. For new entrants of the business, the lack of historical data may severely limit the power and profitability of personalized pricing. We propose a nonparametric pricing policy to simultaneously learn the preference of customers based on the covariates and maximize the expected revenue over a finite horizon. The policy does not depend on any prior assumptions on how the personalized information affects consumers' preferences (such as linear models). It is adaptively splits the covariate space into smaller bins (hyper-rectangles) and clusters customers based on their covariates and preferences, offering similar prices for customers who belong to the same cluster trading off granularity and accuracy. We show that the algorithm achieves a regret of order $O(\log(T)^2 T^{(2+d)/(4+d)})$, where $T$ is the length of the horizon and $d$ is the dimension of the covariate. It improves the current regret in the literature \citep{slivkins2014contextual}, under mild technical conditions in the pricing context (smoothness and local concavity). We also prove that no policy can achieve a regret less than $O(T^{(2+d)/(4+d)})$ for a particular instance and thus demonstrate the near optimality of the proposed policy.

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。

↑