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Efficient design and discovery of target-driven molecules is a critical step in facilitating lead optimization in drug discovery. Current approaches to develop molecules for a target protein are intuition-driven, hampered by slow iterative…

机器学习 · 计算机科学 2022-05-24 Andrew D. McNaughton , Mridula S. Bontha , Carter R. Knutson , Jenna A. Pope , Neeraj Kumar

Diffusion models surpass previous generative models in sample quality and training stability. Recent works have shown the advantages of diffusion models in improving reinforcement learning (RL) solutions. This survey aims to provide an…

机器学习 · 计算机科学 2024-02-26 Zhengbang Zhu , Hanye Zhao , Haoran He , Yichao Zhong , Shenyu Zhang , Haoquan Guo , Tingting Chen , Weinan Zhang

While deep generative models show promise for learning inverse protein folding directly from data, the lack of publicly available structure-sequence pairings limits their generalization. Previous improvements and data augmentation efforts…

人工智能 · 计算机科学 2024-07-23 Jiangbin Zheng , Stan Z. Li

Text-to-image diffusion models are a class of deep generative models that have demonstrated an impressive capacity for high-quality image generation. However, these models are susceptible to implicit biases that arise from web-scale…

计算机视觉与模式识别 · 计算机科学 2024-01-24 Yinan Zhang , Eric Tzeng , Yilun Du , Dmitry Kislyuk

Diffusion models excel at modeling complex data distributions, including those of images, proteins, and small molecules. However, in many cases, our goal is to model parts of the distribution that maximize certain properties: for example,…

Although machine learning has transformed protein structure prediction of folded protein ground states with remarkable accuracy, intrinsically disordered proteins and regions (IDPs/IDRs) are defined by diverse and dynamical structural…

生物大分子 · 定量生物学 2025-04-01 Oufan Zhang , Zi Hao Liu , Julie D Forman-Kay , Teresa Head-Gordon

Breakthroughs in high-accuracy protein structure prediction, such as AlphaFold, have established receptor-based molecule design as a critical driver for rapid early-phase drug discovery. However, most approaches still struggle to balance…

生物大分子 · 定量生物学 2025-06-18 Dong Xu , Zhangfan Yang , Ka-chun Wong , Zexuan Zhu , Jiangqiang Li , Junkai Ji

Robustness to modeling errors and uncertainties remains a central challenge in reinforcement learning (RL). In this work, we address this challenge by leveraging diffusion models to train robust RL policies. Diffusion models have recently…

机器学习 · 计算机科学 2025-12-03 Daniele Foffano , Alessio Russo , Alexandre Proutiere

De novo molecular design has facilitated the exploration of large chemical space to accelerate drug discovery. Structure-based de novo method can overcome the data scarcity of active ligands by incorporating drug-target interaction into…

生物大分子 · 定量生物学 2022-09-16 Yaqin Li , Lingli Li , Yongjin Xu , Yi Yu

The Inverse Reinforcement Learning (\textit{IRL}) problem has seen rapid evolution in the past few years, with important applications in domains like robotics, cognition, and health. In this work, we explore the inefficacy of current IRL…

机器学习 · 计算机科学 2022-09-28 Raeid Saqur

The inverse approach is computationally efficient in aerodynamic design as the desired target performance distribution is prespecified. However, it has some significant limitations that prevent it from achieving full efficiency. First, the…

机器学习 · 计算机科学 2022-03-10 Sunwoong Yang , Sanga Lee , Kwanjung Yee

Motivation Protein fold recognition is an important problem in structural bioinformatics. Almost all traditional fold recognition methods use sequence (homology) comparison to indirectly predict the fold of a tar get protein based on the…

机器学习 · 计算机科学 2017-06-06 Jie Hou , Badri Adhikari , Jianlin Cheng

Protein language models (PLMs) have advanced computational protein science through large-scale pretraining and scalable architectures. In parallel, reinforcement learning (RL) has broadened exploration and enabled precise multi-objective…

Diffusion models are extensively used for modeling image priors for inverse problems. We introduce \emph{Diff-Unfolding}, a principled framework for learning posterior score functions of \emph{conditional diffusion models} by explicitly…

图像与视频处理 · 电气工程与系统科学 2025-05-22 Yuanhao Wang , Shirin Shoushtari , Ulugbek S. Kamilov

Designing novel functional proteins crucially depends on accurately modeling their fitness landscape. Given the limited availability of functional annotations from wet-lab experiments, previous methods have primarily relied on…

Accurately assigning folds for divergent protein sequences is a major obstacle to structural studies and underlies the inverse protein folding problem. Herein, we outline our theories for fold-recognition in the "twilight-zone" of sequence…

定量方法 · 定量生物学 2010-08-31 Yoojin Hong , Kyung Dae Ko , Gaurav Bhardwaj , Zhenhai Zhang , Damian B. van Rossum , Randen L. Patterson

A fundamental challenge in protein design is the trade-off between generating structural diversity while preserving motif biological function. Current state-of-the-art methods, such as partial diffusion in RFdiffusion, often fail to resolve…

Repeat proteins are made with tandem copies of similar amino acid stretches that fold into elongated architectures. Due to their symmetry, these proteins constitute excellent model systems to investigate how evolution relates to structure,…

生物大分子 · 定量生物学 2022-10-12 Ezequiel A. Galpern , Jacopo Marchi , Thierry Mora , Aleksandra M. Walczak , Diego U. Ferreiro

Deep generative models have achieved tremendous success in structure-based drug design in recent years, especially for generating 3D ligand molecules that bind to specific protein pocket. Notably, diffusion models have transformed ligand…

机器学习 · 计算机科学 2024-12-03 Daiheng Zhang , Chengyue Gong , Qiang Liu

Federated learning enables multiple hospitals to cooperatively learn a shared model without privacy disclosure. Existing methods often take a common assumption that the data from different hospitals have the same modalities. However, such a…

图像与视频处理 · 电气工程与系统科学 2023-06-06 Yunlu Yan , Hong Wang , Yawen Huang , Nanjun He , Lei Zhu , Yuexiang Li , Yong Xu , Yefeng Zheng