An End-to-End Framework for Molecular Conformation Generation via Bilevel Programming

• URL: http://arxiv.org/abs/2105.07246v1
• Date: Sat, 15 May 2021 15:22:29 GMT
• Title: An End-to-End Framework for Molecular Conformation Generation via Bilevel Programming
• Authors: Minkai Xu, Wujie Wang, Shitong Luo, Chence Shi, Yoshua Bengio, Rafael Gomez-Bombarelli, Jian Tang
• Abstract summary: We propose an end-to-end solution for molecular conformation prediction called ConfVAE. Specifically, the molecular graph is first encoded in a latent space, and then the 3D structures are generated by solving a principled bilevel optimization program.
• Score: 71.82571553927619
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Predicting molecular conformations (or 3D structures) from molecular graphs is a fundamental problem in many applications. Most existing approaches are usually divided into two steps by first predicting the distances between atoms and then generating a 3D structure through optimizing a distance geometry problem. However, the distances predicted with such two-stage approaches may not be able to consistently preserve the geometry of local atomic neighborhoods, making the generated structures unsatisfying. In this paper, we propose an end-to-end solution for molecular conformation prediction called ConfVAE based on the conditional variational autoencoder framework. Specifically, the molecular graph is first encoded in a latent space, and then the 3D structures are generated by solving a principled bilevel optimization program. Extensive experiments on several benchmark data sets prove the effectiveness of our proposed approach over existing state-of-the-art approaches.

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