Search Results for author: Xuejun Liu

Found 5 papers, 2 papers with code

Robust Bayesian optimization with reinforcement learned acquisition functions

no code implementations2 Oct 2022 Zijing Liu, Xiyao Qu, Xuejun Liu, Hongqiang Lyu

In Bayesian optimization (BO) for expensive black-box optimization tasks, acquisition function (AF) guides sequential sampling and plays a pivotal role for efficient convergence to better optima.

Bayesian Optimization reinforcement-learning +1

Attention-aware contrastive learning for predicting T cell receptor-antigen binding specificity

no code implementations17 May 2022 Yiming Fang, Xuejun Liu, Hui Liu

The limitation can be attributed to the binding specificity of T cell receptor (TCR) to peptide-MHC complex (pMHC).

Contrastive Learning Specificity

Attention-wise masked graph contrastive learning for predicting molecular property

no code implementations2 May 2022 Hui Liu, Yibiao Huang, Xuejun Liu, Lei Deng

We developed a novel molecular graph augmentation strategy, referred to as attention-wise graph mask, to generate challenging positive sample for contrastive learning.

Contrastive Learning Graph Attention +4

Contrastive learning-based computational histopathology predict differential expression of cancer driver genes

1 code implementation25 Apr 2022 Haojie Huang, Gongming Zhou, Xuejun Liu, Lei Deng, Chen Wu, Dachuan Zhang, Hui Liu

We leveraged contrastive learning on large-scale unannotated WSIs to derive slide-level histopathological feature in latent space, and then transfer it to tumor diagnosis and prediction of differentially expressed cancer driver genes.

Contrastive Learning whole slide images

Graph2MDA: a multi-modal variational graph embedding model for predicting microbe-drug associations

1 code implementation14 Aug 2021 Lei Deng, Yibiao Huang, Xuejun Liu, Hui Liu

We evaluated our method on three independent datasets and the experimental results showed that our proposed method outperformed six existing state-of-the-art methods.

Attribute Graph Embedding

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