LiGNN: Graph Neural Networks at LinkedIn
<|reference_start|>LiGNN: Graph Neural Networks at LinkedIn: In this paper, we present LiGNN, a deployed large-scale Graph Neural Networks (GNNs) Framework. We share our insight on developing and deployment of GNNs at large scale at LinkedIn. We present a set of algorithmic improvements to the quality of GNN representation learning including temporal graph architectures with long term losses, effective cold start solutions via graph densification, ID embeddings and multi-hop neighbor sampling. We explain how we built and sped up by 7x our large-scale training on LinkedIn graphs with adaptive sampling of neighbors, grouping and slicing of training data batches, specialized shared-memory queue and local gradient optimization. We summarize our deployment lessons and learnings gathered from A/B test experiments. The techniques presented in this work have contributed to an approximate relative improvements of 1% of Job application hearing back rate, 2% Ads CTR lift, 0.5% of Feed engaged daily active users, 0.2% session lift and 0.1% weekly active user lift from people recommendation. We believe that this work can provide practical solutions and insights for engineers who are interested in applying Graph neural networks at large scale.<|reference_end|>
@article{borisyuk2024lignn:,
    title={LiGNN: Graph Neural Networks at LinkedIn},
    author={Fedor Borisyuk, Shihai He, Yunbo Ouyang, Morteza Ramezani, Peng Du,
  Xiaochen Hou, Chengming Jiang, Nitin Pasumarthy, Priya Bannur, Birjodh
  Tiwana, Ping Liu, Siddharth Dangi, Daqi Sun, Zhoutao Pei, Xiao Shi, Sirou
  Zhu, Qianqi Shen, Kuang-Hsuan Lee, David Stein, Baolei Li, Haichao Wei, Amol
  Ghoting, Souvik Ghosh},
    journal={arXiv preprint arXiv:2402.11139},
    year={2024},
    archivePrefix={arXiv},
    eprint={2402.11139},
    primaryClass={cs.LG cs.AI}
}