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Accurate models are essential for design, performance prediction, control, and diagnostics in complex engineering systems. Physics-based models excel during the design phase but often become outdated during system deployment due to changing…

机器学习 · 计算机科学 2025-01-22 Zihan Liu , Prashant N. Kambali , C. Nataraj

Reduced-order models that accurately abstract high fidelity models and enable faster simulation is vital for real-time, model-based diagnosis applications. In this paper, we outline a novel hybrid modeling approach that combines machine…

信号处理 · 电气工程与系统科学 2020-03-06 Ion Matei , Johan de Kleer , Alexander Feldman , Rahul Rai , Souma Chowdhury

Understanding strongly correlated systems is essential for advancing quantum chemistry and materials science, yet conventional methods like Density Functional Theory (DFT) often fail to capture their complex electronic behavior. To address…

化学物理 · 物理学 2025-09-01 Archith Rayabharam , N. R. Aluru

This research explores a hybrid approach to fine-tuning large language models (LLMs) by integrating real-world and synthetic data to boost model performance, particularly in generating accurate and contextually relevant responses. By…

计算与语言 · 计算机科学 2024-10-15 Alexey Zhezherau , Alexei Yanockin

Machine learning offers an unprecedented perspective for the problem of classifying phases in condensed matter physics. We employ neural-network machine learning techniques to distinguish finite-temperature phases of the strongly correlated…

强关联电子 · 物理学 2017-09-12 Kelvin Ch'ng , Juan Carrasquilla , Roger G. Melko , Ehsan Khatami

Machine learning is rapidly making its path into natural sciences, including high-energy physics. We present the first study that infers, directly from experimental data, a functional form of fragmentation functions. The latter represent a…

高能物理 - 唯象学 · 物理学 2025-01-14 Nour Makke , Sanjay Chawla

Machine-learned force fields have generated significant interest in recent years as a tool for molecular dynamics (MD) simulations, with the aim of developing accurate and efficient models that can replace classical interatomic potentials.…

机器学习 · 计算机科学 2023-04-05 Shaswat Mohanty , Sanghyuk Yoo , Keonwook Kang , Wei Cai

Federated Learning (FL) is a collaborative method for training machine learning models while preserving the confidentiality of the participants' training data. Nevertheless, FL is vulnerable to reconstruction attacks that exploit shared…

密码学与安全 · 计算机科学 2025-07-16 Enrico Sorbera , Federica Zanetti , Giacomo Brandi , Alessandro Tomasi , Roberto Doriguzzi-Corin , Silvio Ranise

Accelerated discovery with machine learning (ML) has begun to provide the advances in efficiency needed to overcome the combinatorial challenge of computational materials design. Nevertheless, ML-accelerated discovery both inherits the…

材料科学 · 物理学 2022-05-09 Chenru Duan , Fang Liu , Aditya Nandy , Heather J. Kulik

Explicit-electron force fields introduce electrons or electron pairs as semi-classical particles in force fields or empirical potentials, which are suitable for molecular dynamics simulations. Even though semi-classical electrons are a…

化学物理 · 物理学 2022-05-17 Maarten Cools-Ceuppens , Joni Dambre , Toon Verstraelen

Mixtures of linear dynamical systems (MoLDS) provide a path to model time-series data that exhibit diverse temporal dynamics across trajectories. However, its application remains challenging in complex and noisy settings, limiting its…

机器学习 · 计算机科学 2026-03-02 Lulu Gong , Shreya Saxena

The thermal conductivity of organic liquids is a vital parameter influencing various industrial and environmental applications, including energy conversion, electronics cooling, and chemical processing. However, atomistic simulation of…

Federated learning has shown enormous promise as a way of training ML models in distributed environments while reducing communication costs and protecting data privacy. However, the rise of complex cyber-physical systems, such as the…

机器学习 · 计算机科学 2023-05-01 Omer Rana , Theodoros Spyridopoulos , Nathaniel Hudson , Matt Baughman , Kyle Chard , Ian Foster , Aftab Khan

Machine learning is rapidly accelerating materials and chemical discovery, but most current models target energies, forces, or selected molecular properties rather than the underlying many-body electronic structure. Learning…

The success of deep learning (DL) is often achieved with large models and high complexity during both training and post-training inferences, hindering training in resource-limited settings. To alleviate these issues, this paper introduces a…

机器学习 · 计算机科学 2025-01-20 En-hui Yang , Shayan Mohajer Hamidi

We present a formalism for developing cyclic and helical symmetry-informed machine learned force fields (MLFFs). In particular, employing the smooth overlap of atomic positions descriptors with the polynomial kernel method, we derive cyclic…

材料科学 · 物理学 2024-08-15 Abhiraj Sharma , Shashikant Kumar , Phanish Suryanarayana

Electrolyte design plays an important role in the development of lithium-ion batteries and sodium-ion batteries. Battery electrolytes feature a large design space composed of different solvents, additives, and salts, which is difficult to…

化学物理 · 物理学 2025-11-18 Junmin Chen , Qian Gao , Yange Lin , Miaofei Huang , Zheng Cheng , Wei Feng , Jianxing Huang , Bo Wang , Kuang Yu

Deep Metric Learning (DML) models often require strong local and global representations, however, effective integration of local and global features in DML model training is a challenge. DML models are often trained with specific loss…

计算机视觉与模式识别 · 计算机科学 2021-12-30 Mohammad K. Ebrahimpour , Gang Qian , Allison Beach

We propose a hybrid approach aimed at improving the sample efficiency in goal-directed reinforcement learning. We do this via a two-step mechanism where firstly, we approximate a model from Model-Free reinforcement learning. Then, we…

机器学习 · 计算机科学 2019-01-09 Shoubhik Debnath , Gaurav Sukhatme , Lantao Liu

Machine learning classifiers' capability is largely dependent on the scale of available training data and limited by the model overfitting in data-scarce learning tasks. To address this problem, this work proposes a novel framework of Meta…

机器学习 · 计算机科学 2022-03-29 Pan Li , Yanwei Fu , Shaogang Gong