Federated Learning Infrastructure for Privacy-Preserving Personalized Shopping in E-Commerce
DOI:
https://doi.org/10.63282/3050-9262.IJAIDSML-V6I4P108Keywords:
Federated Learning, Low-Latency AI, Personalized Recommendations, E-commerce, Privacy-Preserving Machine Learning, Real-Time Inference, LoLaFLAbstract
The modern e-commerce landscape is defined by a fundamental tension between the strategic imperative for real-time, personalized user experiences and the dual constraints of stringent privacy regulations and high-latency computation. While personalized recommendations are critical for navigating information overload and driving engagement, traditional centralized architectures pose significant data privacy risks. Federated Learning (FL) has emerged as a foundational, privacy-preserving paradigm by training models on decentralized user data. However, standard FL implementations suffer from a severe communication bottleneck, introducing latency that is prohibitive for time-sensitive applications like product recommendations at checkout. This paper addresses this performance gap by introducing a new class of tooling exemplified by the Low-Latency Federated Learning (LoLaFL) framework. It details the architectural shift from conventional backpropagation-based FL to a novel forward-only, white-box framework. This approach dramatically reduces communication overhead and computational complexity, enabling the low-latency inference required to deliver secure, private, and instantaneous personalized recommendations at the most critical point of the customer journey
References
[1] Kairouz, P., McMahan, H. B., Avent, B., Bellet, A., Bennis, M., Bhagoji, A. N.,... & Zhao, S. (2021). Advances and open problems in federated learning. Foundations and Trends® in Machine Learning, 14(1–2), 1-210.
[2] Konečný, J., McMahan, H. B., Yu, F. X., Richtárik, P., Suresh, A. T., & Bacon, D. (2016). Federated optimization: Distributed machine learning for on-device intelligence. arXiv preprint arXiv:1610.02527.
[3] McMahan, B., Moore, E., Ramage, D., Hampson, S., & y Arcas, B. A. (2017). Communication-efficient learning of deep networks from decentralized data. In Artificial Intelligence and Statistics (pp. 1273-1282). PMLR.
[4] Park, J., et al. (2025). Federated Recommender System with Data Valuation for E-commerce Platform. arXiv preprint.
[5] Sun, Z., Xu, Y., Liu, Y., He, W., Jiang, Y., Wu, F., & Cui, L. (2023). A Survey on Federated Recommendation Systems. IEEE Transactions on Neural Networks and Learning Systems.
[6] Vaswani, A., Shazeer, N., Parmar, N., Uszkoreit, J., Jones, L., Gomez, A. N.,... & Polosukhin, I. (2017). Attention is all you need. In Advances in Neural Information Processing Systems (pp. 5998-6008).
[7] Yang, Q., Liu, Y., Cheng, Y., Kang, Y., Chen, T., & Yu, H. (2019). Federated machine learning: Concept and applications. ACM Transactions on Intelligent Systems and Technology (TIST), 10(2), 1-19.
[8] Federated Learning-based Personalized Recommendation Systems: An Overview on Security and Privacy Challenges - CyberSecDome, accessed October 29, 2025, https://cybersecdome.eu/wp-content/uploads/2024/01/IEEE-Transactions-on-Consumer-El ectronics-Federated-Learning-based-Personalized-Recommendati-2023.pdf
[9] (PDF) E-commerce Personalized Recommendations: a Deep Neural Collaborative Filtering Approach - ResearchGate, accessed October 29, 2025,
[11] (PDF) Federated Learning on Recommender Systems - ResearchGate, accessed October 29, 2025,
[12] https://www.researchgate.net/publication/388088244_Federated_Learning_on_Recommen der_Systems
[13] Federated Learning on Recommender Systems - IEEE Computer Society, accessed October 29, 2025,
[14] https://www.computer.org/csdl/proceedings article/bigdata/2024/10825895/23yjUjOpcOY
[15] (PDF) A Survey on Federated Recommendation Systems, accessed October 29, 2025,
[16] https://www.researchgate.net/publication/366821201_A_Survey_on_Federated_Recomme ndation_Systems
[17] Recommendation Systems Using Federated Learning - Meegle, accessed October 29, 2025,
[18] https://www.meegle.com/en_us/topics/recommendation-algorithms/recommendation-syste ms-using-federated-learning
[19] Analysis of Privacy Preservation Enhancements in Federated Learning Frameworks - Shaping the Future of IoT with Edge Intelligence - NCBI, accessed October 29, 2025, https://www.ncbi.nlm.nih.gov/books/NBK602365/
[20] Digital Markets Act Summary: EU DMA Law Explained - Usercentrics, accessed October 29, 2025,
[22] The Digital Markets Act: Shaping Fair Competition in the Digital Age, accessed October 29, 2025, https://business.trustedshops.com/blog/digital-markets-act
[23] Federated Learning: The Decentralized Revolution Transforming AI While Preserving Privacy | by Nicolasseverino | Oct, 2025 | Medium, accessed October 29, 2025,
[25] How is federated learning used in personalized recommendations?, accessed October 29, 2025,
[26] https://milvus.io/ai-quick-reference/how-is-federated-learning-used-in-personalized-recom mendations
[27] Federated Learning: A Privacy-Preserving Approach to ... - Netguru, accessed October 29, 2025, https://www.netguru.com/blog/federated-learning
[28] Low-Latency Collaborative Predictive Maintenance: Over-the-Air Federated Learning in Noisy Industrial Environments - MDPI, accessed October 29, 2025, https://www.mdpi.com/1424-8220/23/18/7840
[29] LoLaFL: Low-Latency Federated Learning via Forward-only ..., accessed October 29, 2025, https://arxiv.org/abs/2412.14668
[30] Privacy-Preserving Federated Learning - Hasso-Plattner-Institut, accessed October 29, 2025, https://hpi.de/arnrich/research-areas/privacy-preserving-federated-learning.html
[31] (PDF) Federated Learning Architectures for Privacy-Preserving Artificial Intelligence Applications on Edge Devices - ResearchGate, accessed October 29, 2025,
[32] https://www.researchgate.net/publication/392749199_Federated_Learning_Architectures_f or_Privacy-Preserving_Artificial_Intelligence_Applications_on_Edge_Devices
[33] Federated Learning for Cybersecurity: A Privacy-Preserving Approach, accessed October 29, 2025, https://www.mdpi.com/2076-3417/15/12/6878










