paper-with-me

홈 › Papers

Genetic-guided GFlowNets for Sample Efficient Molecular Optimization

2024-02-05 · Hyeonah Kim, Minsu Kim, Sanghyeok Choi, Jinkyoo Park

The challenge of discovering new molecules with desired properties is crucial in domains like drug discovery and material design. Recent advances in deep learning-based generative methods have shown promise but face the issue of sample efficiency due to the computational expense of evaluating the reward function. This paper proposes a novel algorithm for sample-efficient molecular optimization by distilling a powerful genetic algorithm into deep generative policy using GFlowNets training, the off-policy method for amortized inference. This approach enables the deep generative policy to learn from domain knowledge, which has been explicitly integrated into the genetic algorithm. Our method achieves state-of-the-art performance in the official molecular optimization benchmark, significantly outperforming previous methods. It also demonstrates effectiveness in designing inhibitors against SARS-CoV-2 with substantially fewer reward calls.

📄 PDF Abstract BibTeX arXiv:2402.05961

Code (2)

hyeonahkimm/genetic_gfn 공식 구현 pytorch
yerevann/chemlactica pytorch

Tasks

Bayesian OptimizationDrug Discovery

Similar Papers 제목 키워드 기반

Proximal Policy Optimization for Amortized Discrete Sampling

2026-06-14 · Anna Zykova-Myzina, Timofei Gritsaev, Daniil Tiapkin, Nikita Morozov arxiv

This paper explores policy gradient algorithms for training stochastic policies to sample from structured discrete probability distributions under the Generative Flow Network (GFlowNet) framework. Building on extensive t…

Reinforcement LearningGraph Generation

Embarrassingly Parallel GFlowNets

2024-06-05 · Tiago da Silva, Luiz Max Carvalho, Amauri Souza, Samuel Kaski 외

GFlowNets are a promising alternative to MCMC sampling for discrete compositional random variables. Training GFlowNets requires repeated evaluations of the unnormalized target distribution or reward function. However, fo…

Sample-efficient Multi-objective Molecular Optimization with GFlowNets

2023-02-08 · NeurIPS 2023 11 · Yiheng Zhu, Jialu Wu, Chaowen Hu, Jiahuan Yan 외

Many crucial scientific problems involve designing novel molecules with desired properties, which can be formulated as a black-box optimization problem over the discrete chemical space. In practice, multiple conflicting …

Bayesian OptimizationDiversity

Global-Order GFlowNets

2025-04-03 · Lluís Pastor-Pérez, Javier Alonso-Garcia, Lukas Mauch

Order-Preserving (OP) GFlowNets have demonstrated remarkable success in tackling complex multi-objective (MOO) black-box optimization problems using stochastic optimization techniques. Specifically, they can be trained o…

Stochastic Optimization

Planning-Augmented Sampling with Early Guidance for High-Reward Discovery

2025-10-01 · Rui Zhu, Yudong Zhang, Xuan Yu, Chen Zhang 외 arxiv

Generative Flow Networks (GFlowNets) enable structured generation with inherent diversity, but existing sampling strategies often rely on weak guided exploration, slowing early discovery of high-reward candidates. In tas…