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We present a neural-operator-accelerated concurrent multiscale framework that couples atomistic simulations with continuum finite-element analysis for history-dependent materials, thereby making atomistic-continuum multiscale simulations of…

材料科学 · 物理学 2026-03-31 Tanvir Sohail , Burigede Liu , Swarnava Ghosh

Nonlinear monotone transformations are used extensively in normalizing flows to construct invertible triangular mappings from simple distributions to complex ones. In existing literature, monotonicity is usually enforced by restricting…

机器学习 · 计算机科学 2022-06-07 Difeng Cai , Yuliang Ji , Huan He , Qiang Ye , Yuanzhe Xi

Neural operators, which aim to approximate mappings between infinite-dimensional function spaces, have been widely applied in the simulation and prediction of physical systems. However, the limited representational capacity of network…

机器学习 · 计算机科学 2025-06-03 Jin Song , Kenji Kawaguchi , Zhenya Yan

Neural operator methods have emerged as powerful tools for learning mappings between infinite-dimensional function spaces, yet their potential in optimal control remains largely unexplored. We focus on multi-task control problems, whose…

机器学习 · 计算机科学 2026-04-07 David Sewell , Xingjian Li , Stepan Tretiakov , Krishna Kumar , David Fridovich-Keil

Molecular dynamic simulations are important in computational physics, chemistry, material, and biology. Machine learning-based methods have shown strong abilities in predicting molecular energy and properties and are much faster than DFT…

分子网络 · 定量生物学 2023-02-03 Zheng Yuan , Yaoyun Zhang , Chuanqi Tan , Wei Wang , Fei Huang , Songfang Huang

In the molecular domain, numerous studies have explored the use of multimodal large language models (LLMs) to construct a general-purpose, multi-task molecular model. However, these efforts are still far from achieving a truly universal…

机器学习 · 计算机科学 2025-10-31 Chengxin Hu , Hao Li , Yihe Yuan , Zezheng Song , Chenyang Zhao , Haixin Wang

AI is revolutionizing MRI along the acquisition and processing chain. Advanced AI frameworks have been developed to apply AI in various successive tasks, such as image reconstruction, quantitative parameter map estimation, and image…

医学物理 · 物理学 2024-05-02 Dimitrios Karkalousos , Ivana Išgum , Henk A. Marquering , Matthan W. A. Caan

Unlike vision and language data which usually has a unique format, molecules can naturally be characterized using different chemical formulations. One can view a molecule as a 2D graph or define it as a collection of atoms located in a 3D…

机器学习 · 计算机科学 2023-03-29 Shengjie Luo , Tianlang Chen , Yixian Xu , Shuxin Zheng , Tie-Yan Liu , Liwei Wang , Di He

Prediction for ADMET (Absorption, Distribution, Metabolism, Excretion, and Toxicity) plays a crucial role in drug discovery and development, accelerating the screening and optimization of new drugs. Existing methods primarily rely on…

机器学习 · 计算机科学 2025-09-08 Han Zhang , Fengji Ma , Jiamin Su , Xinyue Yang , Lei Wang , Wen-Cai Ye , Li Liu

Language-guided human motion synthesis has been a challenging task due to the inherent complexity and diversity of human behaviors. Previous methods face limitations in generalization to novel actions, often resulting in unrealistic or…

计算机视觉与模式识别 · 计算机科学 2023-08-21 Yuanhao Zhai , Mingzhen Huang , Tianyu Luan , Lu Dong , Ifeoma Nwogu , Siwei Lyu , David Doermann , Junsong Yuan

In biological tasks, data is rarely plentiful as it is generated from hard-to-gather measurements. Therefore, pre-training foundation models on large quantities of available data and then transfer to low-data downstream tasks is a promising…

Efficient molecular dynamics (MD) simulation is vital for understanding atomic-scale processes in materials science and biophysics. Traditional density functional theory (DFT) methods are computationally expensive, which limits the…

机器学习 · 计算机科学 2025-10-03 Hung Le , Sherif Abbas , Minh Hoang Nguyen , Van Dai Do , Huu Hiep Nguyen , Dung Nguyen

Time integration of stiff systems is a primary source of computational cost in combustion, hypersonics, and other reactive transport systems. This stiffness can introduce time scales significantly smaller than those associated with other…

机器学习 · 计算机科学 2026-05-19 Kamaljyoti Nath , Additi Pandey , Bryan T. Susi , Hessam Babaee , George Em Karniadakis

Designing a neural network architecture for molecular representation is crucial for AI-driven drug discovery and molecule design. In this work, we propose a new framework for molecular representation learning. Our contribution is threefold:…

机器学习 · 计算机科学 2022-10-18 Jiye Kim , Seungbeom Lee , Dongwoo Kim , Sungsoo Ahn , Jaesik Park

Molecular Dynamics (MD) simulations are vital for exploring complex systems in computational physics and chemistry. While machine learning methods dramatically reduce computational costs relative to ab initio methods, their accuracy in…

材料科学 · 物理学 2025-07-18 Ivan Žugec , Tin Hadži Veljković , Maite Alducin , J. Iñaki Juaristi

Molecule-and-text cross-modal representation learning has emerged as a promising direction for enhancing the quality of molecular representation, thereby improving performance in various scientific fields. However, most approaches employ a…

定量方法 · 定量生物学 2025-03-04 Yikun Zhang , Geyan Ye , Chaohao Yuan , Bo Han , Long-Kai Huang , Jianhua Yao , Wei Liu , Yu Rong

Pretraining on a large number of unlabeled 3D molecules has showcased superiority in various scientific applications. However, prior efforts typically focus on pretraining models in a specific domain, either proteins or small molecules,…

机器学习 · 计算机科学 2025-02-25 Rui Jiao , Xiangzhe Kong , Li Zhang , Ziyang Yu , Fangyuan Ren , Wenjuan Tan , Wenbing Huang , Yang Liu

Molecule pretraining has quickly become the go-to schema to boost the performance of AI-based drug discovery. Naturally, molecules can be represented as 2D topological graphs or 3D geometric point clouds. Although most existing pertaining…

机器学习 · 计算机科学 2025-02-10 Shengchao Liu , Weitao Du , Zhiming Ma , Hongyu Guo , Jian Tang

Atomic-scale modeling has advanced rapidly through integration of machine learning, yet a key bottleneck remains. Even with an accurate potential energy surface and a clear target material, we still lack a practical atomistic dynamics…

材料科学 · 物理学 2026-05-18 Wonseok Jeong , Francesca Tavazza , Brian DeCost

In molecular dynamics (MD), systems are molecules made up of atoms, and the aim is to determine their evolution over time. MD is based on a numerical resolution algorithm, whose role is to apply the forces generated by the various…

统计力学 · 物理学 2024-10-16 Frédéric Boussinot