no code implementations • 25 Jul 2024 • Wenjie Yang, Shengzhong Zhang, Jiaxing Guo, Zengfeng Huang
In this paper, we aim to bridge the gap between the field of GR and GCL from the perspective of encoders and loss functions.
no code implementations • 8 Dec 2023 • Shengzhong Zhang, Wenjie Yang, Yimin Zhang, Hongwei Zhang, Divin Yan, Zengfeng Huang
In this work, we discover a phenomenon of community bias amplification in graph representation learning, which refers to the exacerbation of performance bias between different classes by graph representation learning.
1 code implementation • 8 Dec 2023 • Shengzhong Zhang, Wenjie Yang, Xinyuan Cao, Hongwei Zhang, Zengfeng Huang
This allows the encoder not to perform any message passing during the training stage, and significantly reduces the number of sample pairs in the contrastive loss.
1 code implementation • NeurIPS 2023 • Divin Yan, Gengchen Wei, Chen Yang, Shengzhong Zhang, Zengfeng Huang
This work provides a novel theoretical perspective for addressing the problem of imbalanced node classification in GNNs.
1 code implementation • 18 Mar 2023 • Liang Yan, Shengzhong Zhang, Bisheng Li, Min Zhou, Zengfeng Huang
To select which unlabeled nodes to add, we propose geometric ranking to rank unlabeled nodes.
1 code implementation • 18 Apr 2022 • Bisheng Li, Min Zhou, Shengzhong Zhang, Menglin Yang, Defu Lian, Zengfeng Huang
Regarding missing link inference of diverse networks, we revisit the link prediction techniques and identify the importance of both the structural and attribute information.
no code implementations • 29 Sep 2021 • Ziang Zhou, Jieming Shi, Shengzhong Zhang, Zengfeng Huang, Qing Li
Therefore, we propose an effective framework, Stabilized self-training with Negative sampling (SN), which is applicable to existing GNNs to stabilize the training process and enhance the training data, and consequently, boost classification accuracy on graphs with few labeled data.
1 code implementation • 9 Jun 2021 • Zengfeng Huang, Shengzhong Zhang, Chong Xi, Tang Liu, Min Zhou
Scalability of graph neural networks remains one of the major challenges in graph machine learning.
1 code implementation • 30 Jun 2020 • Shengzhong Zhang, Zengfeng Huang, Haicang Zhou, Ziang Zhou
A key of success to such contrastive learning methods is how to draw positive and negative samples.
1 code implementation • 7 Oct 2019 • Ziang Zhou, Jieming Shi, Shengzhong Zhang, Zengfeng Huang, Qing Li
However, under extreme cases when very few labels are available (e. g., 1 labeled node per class), GNNs suffer from severe performance degradation.
no code implementations • ICLR 2019 • Shengzhong Zhang, Ziang Zhou, Zengfeng Huang, Zhongyu Wei
We consider the fundamental problem of semi-supervised node classification in attributed graphs with a focus on \emph{few-shot} learning.