Search Results for author: Yijun Bian

Found 6 papers, 2 papers with code

Advancing Graph Neural Networks with HL-HGAT: A Hodge-Laplacian and Attention Mechanism Approach for Heterogeneous Graph-Structured Data

no code implementations11 Mar 2024 Jinghan Huang, Qiufeng Chen, Yijun Bian, Pengli Zhu, Nanguang Chen, Moo K. Chung, Anqi Qiu

Additionally, we propose a pooling operator to coarsen $k$-simplices, combining features through simplicial attention mechanisms of self-attention and cross-attention via transformers and SP operators, capturing topological interconnections across multiple dimensions of simplices.

Graph Attention Graph Regression

Increasing Fairness via Combination with Learning Guarantees

no code implementations25 Jan 2023 Yijun Bian, Kun Zhang, Anqi Qiu, Nanguang Chen

Furthermore, we investigate the properties of the proposed measure and propose first- and second-order oracle bounds to show that fairness can be boosted via ensemble combination with theoretical learning guarantees.

Ensemble Learning Fairness +1

Adversarial Patch Attacks and Defences in Vision-Based Tasks: A Survey

no code implementations16 Jun 2022 Abhijith Sharma, Yijun Bian, Phil Munz, Apurva Narayan

Adversarial attacks in deep learning models, especially for safety-critical systems, are gaining more and more attention in recent years, due to the lack of trust in the security and robustness of AI models.

When does Diversity Help Generalization in Classification Ensembles?

no code implementations30 Oct 2019 Yijun Bian, Huanhuan Chen

To reveal the effect of diversity on the generalization of classification ensembles, we investigate three issues on diversity, i. e., the measurement of diversity, the relationship between the proposed diversity and the generalization error, and the utilization of this relationship for ensemble pruning.

Classification Ensemble Pruning +2

Sub-Architecture Ensemble Pruning in Neural Architecture Search

1 code implementation1 Oct 2019 Yijun Bian, Qingquan Song, Mengnan Du, Jun Yao, Huanhuan Chen, Xia Hu

Neural architecture search (NAS) is gaining more and more attention in recent years due to its flexibility and remarkable capability to reduce the burden of neural network design.

Ensemble Learning Ensemble Pruning +1

Ensemble Pruning based on Objection Maximization with a General Distributed Framework

1 code implementation13 Jun 2018 Yijun Bian, Yijun Wang, Yaqiang Yao, Huanhuan Chen

Ensemble pruning, selecting a subset of individual learners from an original ensemble, alleviates the deficiencies of ensemble learning on the cost of time and space.

Ensemble Learning Ensemble Pruning

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