Search Results for author: Shengzhong Zhang

Found 10 papers, 7 papers with code

Understanding Community Bias Amplification in Graph Representation Learning

no code implementations8 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.

Contrastive Learning Data Augmentation +1

StructComp: Substituting propagation with Structural Compression in Training Graph Contrastive Learning

1 code implementation8 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.

Contrastive Learning

BSAL: A Framework of Bi-component Structure and Attribute Learning for Link Prediction

1 code implementation18 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.

Attribute Graph Classification +2

Stabilized Self-training with Negative Sampling on Few-labeled Graph Data

no code implementations29 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.

Benchmarking Node Classification

Scaling Up Graph Neural Networks Via Graph Coarsening

1 code implementation9 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.

Stochastic Optimization

SCE: Scalable Network Embedding from Sparsest Cut

1 code implementation30 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.

Contrastive Learning Network Embedding

Effective Stabilized Self-Training on Few-Labeled Graph Data

1 code implementation7 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.

Benchmarking Model Selection +1

Few-shot Classification on Graphs with Structural Regularized GCNs

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.

Classification Few-Shot Learning +2

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