Addressing distributional shifts in operations management: The case of order fulfillment in customized production

• 成果类型: Article
• 署名作者: Senoner, Julian; Kratzwald, Bernhard; Kuzmanovic, Milan; Netland, Torbjorn H.; Feuerriegel, Stefan
• 署名单位: Swiss Federal Institutes of Technology Domain; ETH Zurich; University of Munich; Swiss Federal Institutes of Technology Domain; ETH Zurich
• 刊物名称: PRODUCTION AND OPERATIONS MANAGEMENT
• ISSN/ISSBN: 1059-1478
• DOI: 10.1111/poms.14021
• 发表日期: 2023
• 页码: 3022-3042
• 关键词: adversarial learning; distributional shifts; Machine Learning; Manufacturing; Order Fulfillment

摘要

To meet order fulfillment targets, manufacturers seek to optimize production schedules. Machine learning can support this objective by predicting throughput times on production lines given order specifications. However, this is challenging when manufacturers produce customized products because customization often leads to changes in the probability distribution of operational data-so-called distributional shifts. Distributional shifts can harm the performance of predictive models when deployed to future customer orders with new specifications. The literature provides limited advice on how such distributional shifts can be addressed in operations management. Here, we propose a data-driven approach based on adversarial learning, which allows us to account for distributional shifts in manufacturing settings with high degrees of product customization. We empirically validate our proposed approach using real-world data from a job shop production that supplies large metal components to an oil platform construction yard. Across an extensive series of numerical experiments, we find that our adversarial learning approach outperforms common baselines. Overall, this paper shows how production managers can improve their decision making under distributional shifts.