Molecular property prediction by semantic-invariant contrastive learning.
Molecular property prediction by semantic-invariant contrastive learning.
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DOI:
10.1093/bioinformatics/btad462
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发表时间:
2023-08-01
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--
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Contrastive learning has been widely used as pretext tasks for self-supervised pre-trained molecular representation learning models in AI-aided drug design and discovery. However, existing methods that generate molecular views by noise-adding operations for contrastive learning may face the semantic inconsistency problem, which leads to false positive pairs and consequently poor prediction performance. To address this problem, in this article, we first propose a semantic-invariant view generation method by properly breaking molecular graphs into fragment pairs. Then, we develop a Fragment-based Semantic-Invariant Contrastive Learning (FraSICL) model based on this view generation method for molecular property prediction. The FraSICL model consists of two branches to generate representations of views for contrastive learning, meanwhile a multi-view fusion and an auxiliary similarity loss are introduced to make better use of the information contained in different fragment-pair views. Extensive experiments on various benchmark datasets show that with the least number of pre-training samples, FraSICL can achieve state-of-the-art performance, compared with major existing counterpart models. The code is publicly available at https://github.com/ZiqiaoZhang/FraSICL.
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影响因子:
8.4
作者:
Wu Z;Ramsundar B;Feinberg EN;Gomes J;Geniesse C;Pappu AS;Leswing K;Pande V
通讯作者:
Pande V
影响因子:
5.6
作者:
Irwin JJ;Tang KG;Young J;Dandarchuluun C;Wong BR;Khurelbaatar M;Moroz YS;Mayfield J;Sayle RA
通讯作者:
Sayle RA
影响因子:
14.9
作者:
Gaulton A;Hersey A;Nowotka M;Bento AP;Chambers J;Mendez D;Mutowo P;Atkinson F;Bellis LJ;Cibrián-Uhalte E;Davies M;Dedman N;Karlsson A;Magariños MP;Overington JP;Papadatos G;Smit I;Leach AR
通讯作者:
Leach AR
影响因子:
7.3
作者:
Xiong, Zhaoping;Wang, Dingyan;Zheng, Mingyue
通讯作者:
Zheng, Mingyue
DOI:
10.1021/ci00057a005
发表时间:
1988-02-01
期刊:
JOURNAL OF CHEMICAL INFORMATION AND COMPUTER SCIENCES
影响因子:
--
作者:
WEININGER, D
通讯作者:
WEININGER, D