Federated Learning Approaches for Privacy-Preserving Recommendation Systems in Large-Scale Cloud-Based Retail Ecosystems

Authors

Johanna Traven Nino
Federated Machine Learning Engineer – Privacy-Preserving Recommendations in Cloud Retail, France

Keywords:

Federated Learning, Recommendation Systems, Privacy Preservation, Cloud Retail, Edge Computing, Data Security, Machine Learning, Collaborative Filtering

Synopsis

In the era of personalized digital services, recommendation systems (RS) are pivotal to enhancing user engagement and driving sales in retail ecosystems. However, the use of centralized user data raises significant privacy concerns. Federated Learning (FL) emerges as a transformative solution, enabling collaborative model training without exposing sensitive data. This paper explores the integration of FL into large-scale cloud-based retail recommendation systems, emphasizing privacy preservation, scalability, and efficiency. We evaluate state-of-the-art FL methods, analyze their performance, and present a prototype framework demonstrating their practical applicability. Experimental results indicate improved privacy guarantees with competitive model accuracy. Our study concludes with insights on future directions for federated RS development in dynamic retail environments.

 

References

[1] Yang, Q., Liu, Y., Chen, T., & Tong, Y. (2019). Federated machine learning: Concept and applications. IEEE Transactions on Big Data, 5(1), 10–19.

[2] Gummadi, V. P. K. (2019). Microservices architecture with APIs: Design, implementation, and MuleSoft integration. Journal of Electrical Systems, 15(4), 130–134. https://doi.org/10.52783/jes.9328

[3] Ammad-ud-din, M., Ivannikova, E., Khan, S. A., et al. (2020). Federated collaborative filtering for privacy-preserving personalized recommendation. Information Fusion, 57(2), 207–219.

[4] Chai, Z., Wang, F., Chen, K., et al. (2020). Towards personalized federated learning. Proceedings of AAAI, 34(4), 4515–4523.

[5] Lin, X., Han, S., Wang, X., et al. (2021). Privacy-enhancing techniques in federated learning. Computer Networks, 191(3), 108030.

[6] Gummadi, V. P. K. (2026). Infrastructure optimization techniques for enterprise integration platforms: A comprehensive analysis. Computer Fraud & Security, 2026(1), 37–44. https://doi.org/10.52710/cfs.875

[7] Li, T., Sahu, A. K., Talwalkar, A., et al. (2022). Federated optimization in heterogeneous networks. IEEE Transactions on Machine Learning, 7(2), 212–225.

[8] Zhao, Y., Li, M., Lai, L., et al. (2021). Federated learning with non-IID data in cloud environments. ACM Transactions on Privacy and Security, 24(1), 1–30.

[9] Kairouz, P., McMahan, B., Avent, B., et al. (2021). Advances and open problems in federated learning. Foundations and Trends in Machine Learning, 14(1), 1–210.

[10] Smith, V., Chiang, C. K., Sanjabi, M., et al. (2018). Federated multi-task learning. Advances in Neural Information Processing Systems, 31(1), 4424–4434.

[11] Bonawitz, K., Eichner, H., Grieskamp, W., et al. (2019). Practical secure aggregation for privacy-preserving ML. ACM Transactions on Privacy and Security, 21(2), 1–36.

[12] Geyer, R. C., Klein, T., & Nabi, M. (2017). Differentially private federated learning. arXiv preprint, 1709(12), 1–10.

[13] Gummadi, V. P. K. (2023). MuleSoft batch processing: High-volume streaming architecture. Computer Fraud & Security, 2023(12), 50–57. https://doi.org/10.52710/cfs.886

[14] Sattler, F., Müller, K.-R., & Samek, W. (2020). Clustered federated learning: Model-agnostic distributed multi-task optimization. Advances in Neural Information Processing Systems, 33(1), 4422–4434.

[15] Hard, A., Rao, K., Mathews, R., et al. (2018). Federated learning for mobile keyboard prediction. Proceedings of ICLR, 6(1), 1–11.

[16] Wang, J., Yurochkin, M., Sun, Y., et al. (2020). Federated learning with matched averaging. Proceedings of ICLR, 8(2), 1–14.

[17] Gummad, V. P. K. (2025). Flex gateway, service mesh, and advanced API management evolution. International Journal of Applied Mathematics, 38(9s), 2199–2206. https://doi.org/10.12732/ijam.v38i9s.1643

[18] Caldas, S., Konecny, J., McMahan, H. B., et al. (2019). LEAF: A benchmark for federated settings. Proceedings of NeurIPS Workshops, 2(1), 1–5.

[19] Chen, D., Sun, Q., Tang, Y., et al. (2021). Dynamic aggregation for scalable federated learning. Machine Learning Journal, 110(3), 769–798.

IACSE-IJCC

Published

January 6, 2026