Device-Cloud Collaborative Learning for Recommendation

Jiangchao Yao, Feng Wang, Kunyang Jia, Bo Han, Jingren Zhou, Hongxia Yang

Research output: Chapter in book/report/conference proceedingConference proceedingpeer-review

16 Citations (Scopus)


With the rapid development of storage and computing power on mobile devices, it becomes critical and popular to deploy models on devices to save onerous communication latencies and to capture real-time features. While quite a lot of works have explored to facilitate on-device learning and inference, most of them focus on dealing with response delay or privacy protection. Little has been done to model the collaboration between the device and the cloud modeling and benefit both sides jointly. To bridge this gap, we are among the first attempts to study the Device-Cloud Collaborative Learning (DCCL) framework. Specifically, we propose a novel MetaPatch learning approach on the device side to efficiently achieve "thousands of people with thousands of models'' given a centralized cloud model. Then, with billions of updated personalized device models, we propose a "model-over-models'' distillation algorithm, namely MoMoDistill, to update the centralized cloud model. Our extensive experiments over a range of datasets with different settings demonstrate the effectiveness of such collaboration on both cloud and devices, especially its superiority to model long-tailed users.

Original languageEnglish
Title of host publicationKDD '21: Proceedings of the 27th ACM SIGKDD Conference on Knowledge Discovery & Data Mining
PublisherAssociation for Computing Machinery (ACM)
Number of pages10
ISBN (Electronic)9781450383325
Publication statusPublished - 14 Aug 2021
Event27th ACM SIGKDD Conference on Knowledge Discovery and Data Mining, KDD 2021 - Virtual, Online, Singapore
Duration: 14 Aug 202118 Aug 2021

Publication series

NameProceedings of the ACM SIGKDD International Conference on Knowledge Discovery and Data Mining


Conference27th ACM SIGKDD Conference on Knowledge Discovery and Data Mining, KDD 2021
CityVirtual, Online

Scopus Subject Areas

  • Software
  • Information Systems

User-Defined Keywords

  • cloud computing
  • on-device intelligence
  • recommender systems


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