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Computational and machine learning approaches to model the conformational landscape of macrocyclic peptides have the potential to enable rational design and optimization. However, accurate, fast, and scalable methods for modeling macrocycle…

Biomolecules · Quantitative Biology 2024-08-12 Colin A. Grambow , Hayley Weir , Christian N. Cunningham , Tommaso Biancalani , Kangway V. Chuang

We introduce PINGS (Physics-Informed Neural Network for Fast Generative Sampling), a framework that amortizes diffusion sampling by training a physics-informed network to approximate reverse-time probability-flow dynamics, reducing sampling…

The inverse design of RNA three-dimensional (3D) structures is crucial for engineering functional RNAs in synthetic biology and therapeutics. While recent deep learning approaches have advanced this field, they are typically optimized and…

Machine Learning · Computer Science 2026-05-11 Tianmeng Hu , Yongzheng Cui , Biao Luo , Ke Li

Cyclic peptides, characterized by geometric constraints absent in linear peptides, offer enhanced biochemical properties, presenting new opportunities to address unmet medical needs. However, designing target-specific cyclic peptides…

Machine Learning · Computer Science 2025-07-15 Dapeng Jiang , Xiangzhe Kong , Jiaqi Han , Mingyu Li , Rui Jiao , Wenbing Huang , Stefano Ermon , Jianzhu Ma , Yang Liu

Cyclic peptides are attractive therapeutic modalities because their closed-ring topology can improve stability and target specificity. However, de novo cyclic peptide design remains challenging for diffusion generators, as macrocyclization…

Computational Engineering, Finance, and Science · Computer Science 2026-05-25 Jingjie Zhang , Hanqun Cao , Haosen Shi , He Mutian , Yu Wang , Zijun Gao , Fang Wu , Xiaojun Yao , Chang-Yu Hsieh , Sinno Jialin Pan , Pranam Chatterjee , Chunbin Gu , Pheng-Ann Heng

We introduce a new technique for generating retinal fundus images that have anatomically accurate vascular structures, using diffusion models. We generate artery/vein masks to create the vascular structure, which we then condition to…

Image and Video Processing · Electrical Eng. & Systems 2023-05-12 Sojung Go , Younghoon Ji , Sang Jun Park , Soochahn Lee

Recent remarkable advancements in geometric deep generative models, coupled with accumulated structural data, enable structure-based drug design (SBDD) using only target protein information. However, existing models often struggle to…

Biomolecules · Quantitative Biology 2026-03-09 Joongwon Lee , Wonho Zhung , Jisu Seo , Woo Youn Kim

Generating desirable molecular structures in 3D is a fundamental problem for drug discovery. Despite the considerable progress we have achieved, existing methods usually generate molecules in atom resolution and ignore intrinsic local…

Biomolecules · Quantitative Biology 2023-05-29 Bo Qiang , Yuxuan Song , Minkai Xu , Jingjing Gong , Bowen Gao , Hao Zhou , Weiying Ma , Yanyan Lan

Since its foundations, more than one hundred years ago, the field of structural biology has strived to understand and analyze the properties of molecules and their interactions by studying the structure that they take in 3D space. However,…

Biomolecules · Quantitative Biology 2023-02-27 Gabriele Corso

Generating molecules that bind to specific proteins is an important but challenging task in drug discovery. Previous works usually generate atoms in an auto-regressive way, where element types and 3D coordinates of atoms are generated one…

Biomolecules · Quantitative Biology 2024-07-16 Haitao Lin , Yufei Huang , Odin Zhang , Siqi Ma , Meng Liu , Xuanjing Li , Lirong Wu , Jishui Wang , Tingjun Hou , Stan Z. Li

Pseudo-healthy image inpainting is an essential preprocessing step for analyzing pathological brain MRI scans. Most current inpainting methods favor slice-wise 2D models for their high in-plane fidelity, but their independence across slices…

Image and Video Processing · Electrical Eng. & Systems 2025-07-25 Dou Hoon Kwark , Shirui Luo , Xiyue Zhu , Yudu Li , Zhi-Pei Liang , Volodymyr Kindratenko

Echo-planar imaging (EPI) remains the cornerstone of diffusion MRI, but it is prone to severe geometric distortions due to its rapid sampling scheme that renders the sequence highly sensitive to $B_{0}$ field inhomogeneities. While deep…

Image and Video Processing · Electrical Eng. & Systems 2026-03-30 Namgyu Han , Seong Dae Yun , Chaeeun Lim , Sunghyun Seok , Sunju Kim , Yoonhwan Kim , Yohan Jun , Tae Hyung Kim , Berkin Bilgic , Jaejin Cho

3D reconstruction from a single image is a long-standing problem in computer vision. Learning-based methods address its inherent scale ambiguity by leveraging increasingly large labeled and unlabeled datasets, to produce geometric priors…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Vitor Guizilini , Pavel Tokmakov , Achal Dave , Rares Ambrus

Traditional molecule generation methods often rely on sequence- or graph-based representations, which can limit their expressive power or require complex permutation-equivariant architectures. This paper introduces a novel paradigm for…

Machine Learning · Computer Science 2025-02-18 Van Khoa Nguyen , Maciej Falkiewicz , Giangiacomo Mercatali , Alexandros Kalousis

Molecule generation is a very important practical problem, with uses in drug discovery and material design, and AI methods promise to provide useful solutions. However, existing methods for molecule generation focus either on 2D graph…

Machine Learning · Computer Science 2024-02-07 Chenqing Hua , Sitao Luan , Minkai Xu , Rex Ying , Jie Fu , Stefano Ermon , Doina Precup

Diffusion generative models have emerged as a powerful framework for addressing problems in structural biology and structure-based drug design. These models operate directly on 3D molecular structures. Due to the unfavorable scaling of…

Biomolecules · Quantitative Biology 2024-05-10 Ian Dunn , David Ryan Koes

Anatomical trees play a central role in clinical diagnosis and treatment planning. However, accurately representing anatomical trees is challenging due to their varying and complex topology and geometry. Traditional methods for representing…

Computer Vision and Pattern Recognition · Computer Science 2024-06-21 Ashish Sinha , Ghassan Hamarneh

Peptide-based drugs can bind to protein interaction sites that small molecules often cannot, and are easier to produce than large protein drugs. However, designing effective peptide binders is difficult. A typical peptide has an enormous…

Biomolecules · Quantitative Biology 2025-11-19 Xiaoqiong Xia , Cesar de la Fuente-Nunez

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…

Quantitative Methods · Quantitative Biology 2025-10-22 Kevin Michalewicz , Chen Jin , Philip Alexander Teare , Tom Diethe , Mauricio Barahona , Barbara Bravi , Asher Mullokandov

Analyzing medical data to find abnormalities is a time-consuming and costly task, particularly for rare abnormalities, requiring tremendous efforts from medical experts. Artificial intelligence has become a popular tool for the automatic…

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