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200 papers

The promising coverage and spectral efficiency gains of intelligent reflecting surfaces (IRSs) are attracting increasing interest. In order to realize these surfaces in practice, however, several challenges need to be addressed. One of…

Information Theory · Computer Science 2020-02-26 Abdelrahman Taha , Yu Zhang , Faris B. Mismar , Ahmed Alkhateeb

Our ongoing development and deployment of an online robotics education platform highlighted a gap in providing an interactive, feedback-rich learning environment essential for mastering programming concepts in robotics, which they were not…

Robotics · Computer Science 2024-05-21 Ponkoj Chandra Shill , David Feil-Seifer , Jiullian-Lee Vargas Ruiz , Rui Wu

The Transformer architecture has achieved significant success in natural language processing, motivating its adaptation to computer vision tasks. Unlike convolutional neural networks, vision transformers inherently capture long-range…

Computer Vision and Pattern Recognition · Computer Science 2025-09-29 Zherui Zhang , Rongtao Xu , Jie Zhou , Changwei Wang , Xingtian Pei , Wenhao Xu , Jiguang Zhang , Li Guo , Longxiang Gao , Wenbo Xu , Shibiao Xu

The change in data distribution over time, also known as concept drift, poses a significant challenge to the reliability of online learning methods. Existing methods typically require model retraining or drift detection, both of which…

Machine Learning · Computer Science 2025-06-11 Songqiao Hu , Zeyi Liu , Xiao He

Powerful detectors at modern experimental facilities routinely collect data at multiple GB/s. Online analysis methods are needed to enable the collection of only interesting subsets of such massive data streams, such as by explicitly…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-08-23 Rafael Vescovi , Ryan Chard , Nickolaus Saint , Ben Blaiszik , Jim Pruyne , Tekin Bicer , Alex Lavens , Zhengchun Liu , Michael E. Papka , Suresh Narayanan , Nicholas Schwarz , Kyle Chard , Ian Foster

An approach based on the Fisher information (FI) is developed to quantify the maximum information gain and optimal experimental design in neutron reflectometry experiments. In these experiments, the FI can be analytically calculated and…

Data Analysis, Statistics and Probability · Physics 2021-08-03 James H. Durant , Lucas Wilkins , Keith Butler , Joshaniel F. K. Cooper

Deflectometry as a technical approach to assessing reflective surfaces has now existed for almost 40 years. Different aspects and variations of the method have been studied in multiple theses and research articles, and reviews are also…

We present a proof-of-concept LIDAR design that allows adaptive real-time measurements according to dynamically specified measurement patterns. We describe our optical setup and calibration, which enables fast sparse depth measurements…

Computer Vision and Pattern Recognition · Computer Science 2020-10-19 Francesco Pittaluga , Zaid Tasneem , Justin Folden , Brevin Tilmon , Ayan Chakrabarti , Sanjeev J. Koppal

We present a novel method, based on the Saunderson corrections, to predict the reflectance between a liquid interface and a dielectric diffuser. In this method, the diffuse properties of the dielectric are characterized using a single…

Optics · Physics 2023-05-08 C. Silva , R. Cabrita , V. N. Solovov , P. Brás , A. Lindote , G. Pereira , M. I. Lopes

Computational tools for data analysis are being released daily on repositories such as the Comprehensive R Archive Network. How we integrate these tools to solve a problem in research is increasingly complex and requiring frequent updates.…

Other Statistics · Statistics 2019-10-17 Charles T. Gray

Recent 3D face reconstruction methods have made remarkable advancements, yet there remain huge challenges in monocular high-quality facial reflectance reconstruction. Existing methods rely on a large amount of light-stage captured data to…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Xingyu Ren , Jiankang Deng , Yuhao Cheng , Jia Guo , Chao Ma , Yichao Yan , Wenhan Zhu , Xiaokang Yang

Outfits in online fashion data are composed of items of many different types (e.g. top, bottom, shoes) that share some stylistic relationship with one another. A representation for building outfits requires a method that can learn both…

Computer Vision and Pattern Recognition · Computer Science 2018-07-31 Mariya I. Vasileva , Bryan A. Plummer , Krishna Dusad , Shreya Rajpal , Ranjitha Kumar , David Forsyth

We introduce a transformer-based neural network to generate high-resolution (3km) synthetic radar reflectivity fields at scale from geostationary satellite imagery. This work aims to enhance short-term convective-scale forecasts of…

Signal Processing · Electrical Eng. & Systems 2024-07-02 Jason Stock , Kyle Hilburn , Imme Ebert-Uphoff , Charles Anderson

Transparent and reflective objects in everyday environments pose significant challenges for depth sensors due to their unique visual properties, such as specular reflections and light transmission. These characteristics often lead to…

Robotics · Computer Science 2025-06-12 Guanghu Xie , Zhiduo Jiang , Yonglong Zhang , Yang Liu , Zongwu Xie , Baoshi Cao , Hong Liu

As liquid xenon time projection chambers scale to ever-larger sizes, so too do the engineering challenges they pose. We describe a large, flexible, multipurpose test facility capable of supporting the development of a number of key aspects…

Instrumentation and Detectors · Physics 2025-11-14 Evan Angelico , Jacopo Dalmasson , Ralph DeVoe , Giorgio Gratta , Clarke A. Hardy , Brian Lenardo , Lin Si , Marie Vidal , Shuoxing Wu

In \textit{computer-based testing} it has become standard to collect response accuracy (RA) and response times (RTs) for each test item. IRT models are used to measure a latent variable (e.g., ability, intelligence) using the RA…

Methodology · Statistics 2021-06-21 Jean-Paul Fox , Konrad Klotzke , Ahmet Salih Simsek

Neutron-Transformer Reflectometry and Advanced Computation Engine (N-TRACE ), a neural network model using transformer architecture, is introduced for neutron reflectometry data analysis. It offers fast, accurate initial parameter…

Computational Physics · Physics 2024-10-31 Chen Zhang , Valerie A. Niemann , Peter Benedek , Thomas F. Jaramillo , Mathieu Doucet

We have combined neutron reflectometry with rheology in order to investigate the solid boundary of liquids and polymers under shear deformation. Our approach allows one to apply a controlled stress to a material while resolving the…

Soft Condensed Matter · Physics 2020-06-09 Max Wolff , Peter Kuhns , Georg Liesche , John F. Ankner , Jim F. Browning , Philipp Gutfreund

Gravitational wave parameter inference pipelines operate on data containing unknown sources on distributed hardware with unreliable performance. For one specific analysis pipeline (RIFT), we have developed a flexible tool (RUNMON-RIFT) to…

General Relativity and Quantum Cosmology · Physics 2024-09-18 Rhiannon Udall , Joshua Brandt , Grihith Manchanda , Adhav Arulanandan , James Clark , Jacob Lange , Richard O'Shaughnessy , Laura Cadonati

Type errors in Python often lead to runtime failures, posing significant challenges to software reliability and developer productivity. Existing static analysis tools aim to detect such errors without execution but frequently suffer from…

Software Engineering · Computer Science 2025-10-03 Chen Yang , Ziqi Wang , Yanjie Jiang , Lin Yang , Yuteng Zheng , Jianyi Zhou , Junjie Chen