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Using machine learning with a variational formula for diffusivity, we recast diffusion as a sum of individual contributions to diffusion--called "kinosons"--and compute their statistical distribution to model a complex multicomponent alloy.…

Materials Science · Physics 2024-05-02 Soham Chattopadhyay , Dallas R. Trinkle

Raman spectroscopy is an important characterization tool with diverse applications in many areas of research. We propose a machine learning method for predicting polarizabilities with the goal of providing Raman spectra from molecular…

Materials Science · Physics 2024-02-02 Manuel Grumet , Clara von Scarpatetti , Tomáš Bučko , David A. Egger

The increasing importance of artificial intelligence and machine learning in materials research has created demand for automated, high-throughput characterization techniques capable of rapidly generating large data sets. We describe here a…

Electron microscopy is widely used to explore defects in crystal structures, but human detecting of defects is often time-consuming, error-prone, and unreliable, and is not scalable to large numbers of images or real-time analysis. In this…

Fluid flow around a random distribution of stationary spherical particles is a problem of substantial importance in the study of dispersed multiphase flows. In this paper we present a machine learning methodology using Generative…

Fluid Dynamics · Physics 2021-11-02 B. Siddani , S. Balachandar , W. C. Moore , Y. Yang , R. Fang

Airborne topographic LiDAR is an active remote sensing technology that emits near-infrared light to map objects on the Earth's surface. Derived products of LiDAR are suitable to service a wide range of applications because of their rich…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Mariona Caros , Ariadna Just , Santi Segui , Jordi Vitria

Understanding the grain morphology, orientation distribution, and crystal structure of nanocrystals is essential for optimizing the mechanical and physical properties of functional materials. Synchrotron X-ray Laue microdiffraction is a…

Materials Science · Physics 2025-06-13 Ka Hung Chan , Xinyue Huang , Nobumichi Tamura , Xian Chen

The high demand for fabricating microresonators with desired optical properties has led to various techniques to optimize geometries, mode structures, nonlinearities and dispersion. Depending on applications, the dispersion in such…

Machine Learning · Computer Science 2023-03-22 Arghadeep Pal , Alekhya Ghosh , Shuangyou Zhang , Toby Bi , Pascal DeľHaye

Reconstructing the 3D location and size of microparticles from diffraction images - holograms - is a computationally expensive inverse problem that has traditionally been solved using physics-based reconstruction methods. More recently,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-17 Ayush Paliwal , Oliver Schlenczek , Birte Thiede , Manuel Santos Pereira , Katja Stieger , Eberhard Bodenschatz , Gholamhossein Bagheri , Alexander Ecker

Anomaly, or out-of-distribution, detection is a promising tool for aiding discoveries of new particles or processes in particle physics. In this work, we identify and address two overlooked opportunities to improve anomaly detection for…

High Energy Physics - Experiment · Physics 2024-01-18 Abhijith Gandrakota , Lily Zhang , Aahlad Puli , Kyle Cranmer , Jennifer Ngadiuba , Rajesh Ranganath , Nhan Tran

Machine learning offers remarkable benefits for improving workplaces and working conditions amongst others in the recycling industry. Here e.g. hand-sorting of medium value scrap is labor intensive and requires experienced and skilled…

Machine Learning · Computer Science 2019-03-25 Maximilian Auer , Kai Osswald , Raphael Volz , Joerg Woidasky

Rapid development of ultrafast ultraintense laser technologies continues to create opportunities for studying strong-field physics under extreme conditions. However, accurate determination of the spatial and temporal characteristics of a…

Plasma Physics · Physics 2023-01-03 Zhi-Wei Lu , Xin-Di Hou , Feng Wan , Yousef I. Salamin , Chong Lv , Bo Zhang , Fei Wang , Zhong-Feng Xu , Jian-Xing Li

Powder X-ray diffraction analysis is a critical component of materials characterization methodologies. Discerning characteristic Bragg intensity peaks and assigning them to known crystalline phases is the first qualitative step of…

Materials Science · Physics 2023-04-12 Jaimie Greasley , Patrick Hosein

A major challenge in materials science is the determination of the structure of nanometer sized objects. Here we present a novel approach that uses a generative machine learning model based on diffusion processes that is trained on 45,229…

Computational Physics · Physics 2024-11-01 Gabe Guo , Tristan Saidi , Maxwell Terban , Michele Valsecchi , Simon JL Billinge , Hod Lipson

Determining accurate plasma Doppler (line-of-sight) velocities from spectroscopic measurements is a challenging endeavour, especially when weak chromospheric absorption lines are often rapidly evolving and, hence, contain multiple spectral…

Solar and Stellar Astrophysics · Physics 2021-01-05 Conor D. MacBride , David B. Jess , Samuel D. T. Grant , Elena Khomenko , Peter H. Keys , Marco Stangalini

Mobile robots on construction sites require accurate pose estimation to perform autonomous surveying and inspection missions. Localization in construction sites is a particularly challenging problem due to the presence of repetitive…

Robotics · Computer Science 2025-04-18 Benjamin Krummenacher , Jonas Frey , Turcan Tuna , Olga Vysotska , Marco Hutter

Learning color mixing is difficult for novice painters. In order to support novice painters in learning color mixing, we propose a prediction model for semitransparent pigment mixtures and use its prediction results to create a Smart…

Machine Learning · Computer Science 2019-04-02 Mei-Yun Chen , Ya-Bo Huang , Sheng-Ping Chang , Ming Ouhyoung

Machine learning for molecular property prediction has focused largely on pure compounds, even though many practical applications depend on mixtures with intermolecular interactions. Recent work has expanded the availability of mixture…

Machine Learning · Computer Science 2026-05-29 Roel J. Leenhouts , Nathan K. Morgan , William Green , Jan G. Rittig , Florence H. Vermeire

Despite diffusion models' superior capabilities in modeling complex distributions, there are still non-trivial distributional discrepancies between generated and ground-truth images, which has resulted in several notable problems in image…

Computer Vision and Pattern Recognition · Computer Science 2024-10-08 Yujian Liu , Yang Zhang , Tommi Jaakkola , Shiyu Chang

Imaging biological molecules in the gas-phase requires novel sample delivery methods, which generally have to be characterized and optimized to produce high-density particle beams. A non-destructive characterization method of the transverse…