A Hybrid MIP-ML Framework for Real-Time 3D Bin Packing in High-Volume E-Commerce Fulfillment

Authors

  • Venkatesh Manohar Senior Data Scientist, Chewy, Plantation, FL. Author

DOI:

https://doi.org/10.63282/3050-922X.IJERET-V4I2P118

Keywords:

3D Bin Packing, Mixed Integer Programming, Machine Learning, Combinatorial Optimization, E-Commerce Fulfillment, NP-Hard Problems, Operations Research, Supply Chain Optimization, Real-Time Decision Systems, Packaging Optimization

Abstract

The three-dimensional (3D) bin packing problem is a well-known NP-hard combinatorial problem that is fundamental to the emerging e-commerce logistics demands of today, which require millions of packing requests to be solved every day, with high-quality service and acceptable computational effort. Traditional exact optimization methods like Mixed Integer Programming (MIP) can generate optimal packing schemes; however, for large and real-time applications, such traditional methods become hard to apply. On the other hand, heuristic or machine learning approaches have quicker decision-making capabilities and have the potential of compromising solution quality and consistency. This paper introduces a hybrid MIP-ML approach, merging the advantage of real-time optimality guarantees of MIP with the powerful predictive capability of machine learning, and proposes an implementation of it. Addressing high-volume fulfillment, this paper suggests a hybrid MIP-ML framework based on optimism of real-time MIP results and the efficiency of prediction capabilities of machine learning, and introduces an implementation. This approach is based on an optimization layer called “MIP,” which processes a number of representative problem instances to create optimal solutions, which are subsequently used to train machine learning models that allow for quick prediction of near-optimal container selection and pack configuration. A hybrid decision engine dynamically switches between exact optimization and predictive inference, depending on the constraints and computational budget. Experiments have shown that the proposed framework is not only significantly faster to decide, but also enables high packing utilization and container efficiency. Results show significant enhancements in operational scalability, packaging cost reduction, and fulfillment throughput over traditional optimization-only solution approaches. The proposed architecture offers a practical and scalable approach to implement an intelligent packaging optimization system in the next-generation e-commerce fulfillment center.

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Published

2023-06-30

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How to Cite

1.
Manohar V. A Hybrid MIP-ML Framework for Real-Time 3D Bin Packing in High-Volume E-Commerce Fulfillment. IJERET [Internet]. 2023 Jun. 30 [cited 2026 Jul. 17];4(2):170-8. Available from: https://ijeret.org/index.php/ijeret/article/view/632