Search Results for author: Xiaobing Pei

Found 8 papers, 1 papers with code

Hyperedge Interaction-aware Hypergraph Neural Network

no code implementations28 Jan 2024 Rongping Ye, Xiaobing Pei, Haoran Yang, Ruiqi Wang

In this paper, we propose HeIHNN, a hyperedge interaction-aware hypergraph neural network, which captures the interactions among hyperedges during the convolution process and introduce a novel mechanism to enhance information flow between hyperedges and nodes.

Semi-supervised learning via DQN for log anomaly detection

no code implementations6 Jan 2024 Yingying He, Xiaobing Pei, Lihong Shen

DQNLog leverages a small amount of labeled data and a large-scale unlabeled dataset, effectively addressing the challenges of imbalanced data and limited labeling.

reinforcement-learning Supervised Anomaly Detection

HC-Ref: Hierarchical Constrained Refinement for Robust Adversarial Training of GNNs

no code implementations8 Dec 2023 Xiaobing Pei, Haoran Yang, Gang Shen

Recent studies have shown that attackers can catastrophically reduce the performance of GNNs by maliciously modifying the graph structure or node features on the graph.

Node Classification

Unrestricted Adversarial Samples Based on Non-semantic Feature Clusters Substitution

no code implementations31 Aug 2022 Mingwei Zhou, Xiaobing Pei

Most current methods generate adversarial examples with the $L_p$ norm specification.

Fine-grained Graph Learning for Multi-view Subspace Clustering

1 code implementation12 Jan 2022 Yidi Wang, Xiaobing Pei, Haoxi Zhan

To utilize the multi-view information sufficiently, we design a specific graph learning method by introducing graph regularization and a local structure fusion pattern.

Clustering Graph Learning +1

Black-box Gradient Attack on Graph Neural Networks: Deeper Insights in Graph-based Attack and Defense

no code implementations30 Apr 2021 Haoxi Zhan, Xiaobing Pei

In this paper, we develop deeper insights into the Mettack algorithm, which is a representative grey-box attacking method, and then we propose a gradient-based black-box attacking algorithm.

Graph Representation Learning

I-GCN: Robust Graph Convolutional Network via Influence Mechanism

no code implementations11 Dec 2020 Haoxi Zhan, Xiaobing Pei

While being able to achieve desirable performance when the perturbation rates are low, such methods are still vulnerable to high perturbation rates.

Node Classification

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