Title
TrimNet: learning molecular representation from triplet messages for biomedicine
Abstract
Motivation: Computational methods accelerate drug discovery and play an important role in biomedicine, such as molecular property prediction and compound-protein interaction (CPI) identification. A key challenge is to learn useful molecular representation. In the early years, molecular properties are mainly calculated by quantum mechanics or predicted by traditional machine learning methods, which requires expert knowledge and is often labor-intensive. Nowadays, graph neural networks have received significant attention because of the powerful ability to learn representation from graph data. Nevertheless, current graph-based methods have some limitations that need to be addressed, such as large-scale parameters and insufficient bond information extraction. Results: In this study, we proposed a graph-based approach and employed a novel triplet message mechanism to learn molecular representation efficiently, named triplet message networks (TrimNet). We show that TrimNet can accurately complete multiple molecular representation learning tasks with significant parameter reduction, including the quantum properties, bioactivity, physiology and CPI prediction. In the experiments, TrimNet outperforms the previous state-of-the-art method by a significant margin on various datasets. Besides the few parameters and high prediction accuracy, TrimNet could focus on the atoms essential to the target properties, providing a clear interpretation of the prediction tasks. These advantages have established TrimNet as a powerful and useful computational tool in solving the challenging problem of molecular representation learning.
Year
DOI
Venue
2021
10.1093/bib/bbaa266
BRIEFINGS IN BIOINFORMATICS
Keywords
DocType
Volume
deep learning, molecular representation, molecular property, compound-protein interaction, computational method, graph neural networks
Journal
22
Issue
ISSN
Citations 
4
1467-5463
0
PageRank 
References 
Authors
0.34
18
8
Name
Order
Citations
PageRank
Pengyong Li111.36
Yuquan Li200.68
Chang-Yu Hsieh332.40
Shengyu Zhang432942.48
Xianggen Liu532.07
Huanxiang Liu620.71
Sen Song729922.35
X. J. Yao815522.48