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Large-scale modern data often involves estimation and testing for high-dimensional unknown parameters. It is desirable to identify the sparse signals, ``the needles in the haystack'', with accuracy and false discovery control. However, the…

Machine Learning · Computer Science 2021-11-08 Junhui Cai , Xu Han , Ya'acov Ritov , Linda Zhao

Strictly Positive Real (SPR) transfer functions arise in many areas of engineering like passivity theory in circuit analysis and adaptive control to name a few. In many physical systems, it is possible to conclude that the system is…

Systems and Control · Electrical Eng. & Systems 2021-10-13 Nikhil Potu Surya Prakash , Zhi Chen , Roberto Horowitz

Mobile ground robots require perceiving and understanding their surrounding support surface to move around autonomously and safely. The support surface is commonly estimated based on exteroceptive depth measurements, e.g., from LiDARs.…

Robotics · Computer Science 2023-05-16 Anqiao Li , Chenyu Yang , Jonas Frey , Joonho Lee , Cesar Cadena , Marco Hutter

3D object detection is an important task in computer vision. Most existing methods require a large number of high-quality 3D annotations, which are expensive to collect. Especially for outdoor scenes, the problem becomes more severe due to…

Computer Vision and Pattern Recognition · Computer Science 2022-11-28 Hongyi Xu , Fengqi Liu , Qianyu Zhou , Jinkun Hao , Zhijie Cao , Zhengyang Feng , Lizhuang Ma

Atomic scale characterization and manipulation with scanning probe microscopy rely upon the use of an atomically sharp probe. Here we present automated methods based on machine learning to automatically detect and recondition the quality of…

Mesoscale and Nanoscale Physics · Physics 2018-03-26 Mohammad Rashidi , Robert A. Wolkow

In dense foggy scenes, existing optical flow methods are erroneous. This is due to the degradation caused by dense fog particles that break the optical flow basic assumptions such as brightness and gradient constancy. To address the…

Computer Vision and Pattern Recognition · Computer Science 2020-04-07 Wending Yan , Aashish Sharma , Robby T. Tan

Machine learning techniques are increasingly being applied in high-energy nuclear physics data analysis thanks to their outstanding performance. One key challenge in such applications is the construction of training samples that can…

Nuclear Experiment · Physics 2025-11-14 Yan Wang , Rangrong Ma , Kaifeng Shen , Zebo Tang , Wangmei Zha

Traditional surveillance systems rely on human attention, limiting their effectiveness. This study employs convolutional neural networks and transfer learning to develop a real-time computer vision system for automatic handgun detection.…

Computer Vision and Pattern Recognition · Computer Science 2025-11-06 Youssef Elmir

$\mbox{H}$ $\mbox{I}$ 21-cm absorption, an extremely useful tool to study the cold atomic hydrogen gas, can arise either from the intervening galaxies along the line-of-sight towards the background radio source or from the radio source…

Astrophysics of Galaxies · Physics 2025-11-10 Debasish Mondal , Anirudh S. Nemmani , Arunima Banerjee

Dynamic obstacle avoidance is one crucial component for compliant navigation in crowded environments. In this paper we present a system for accurate and reliable detection and tracking of dynamic objects using noisy point cloud data…

Robotics · Computer Science 2020-07-22 Thomas Eppenberger , Gianluca Cesari , Marcin Dymczyk , Roland Siegwart , Renaud Dubé

How effective are recent advancements in autonomous vehicle perception systems when applied to real-world autonomous vehicle control? While numerous vision-based autonomous vehicle systems have been trained and evaluated in simulated…

Robotics · Computer Science 2024-09-12 Mustafa Yildirim , Barkin Dagda , Vinal Asodia , Saber Fallah

Semi- and weakly-supervised learning have recently attracted considerable attention in the object detection literature since they can alleviate the cost of annotation needed to successfully train deep learning models. State-of-art…

Computer Vision and Pattern Recognition · Computer Science 2022-06-20 Akhil Meethal , Marco Pedersoli , Zhongwen Zhu , Francisco Perdigon Romero , Eric Granger

While prior works have investigated and developed computational models capable of object detection, models still struggle to reliably interpret images with motion blur and small objects. Moreover, none of these models are specifically…

Computer Vision and Pattern Recognition · Computer Science 2022-05-05 Abhinav Ganguly , Amar C Gandhi , Sylvia E , Jeffrey D Chang , Ian M Hudson

Reinforcement Learning (RL), among other learning-based methods, represents powerful tools to solve complex robotic tasks (e.g., actuation, manipulation, navigation, etc.), with the need for real-world data to train these systems as one of…

Robotics · Computer Science 2020-07-28 Kenzo Lobos-Tsunekawa , Tatsuya Harada

The rapid advancement of large language models has raised significant concerns regarding their potential misuse by malicious actors. As a result, developing effective detectors to mitigate these risks has become a critical priority.…

Computation and Language · Computer Science 2025-05-15 Xiaowei Zhu , Yubing Ren , Yanan Cao , Xixun Lin , Fang Fang , Yangxi Li

We present the Bright Star Subtraction (BSS) pipeline for the Vera C. Rubin Observatory's Legacy Survey of Space and Time (LSST). This pipeline generates an extended PSF model using observed stars and subtracts the model from the bright…

Instrumentation and Methods for Astrophysics · Physics 2024-04-09 Amir E. Bazkiaei , Lee S. Kelvin , Sarah Brough , Simon J. O'Toole , Aaron Watkins , Morgen A. Schmitz

We propose a machine-learning-based technique to determine the number density of radio sources as a function of their flux density, for use in next-generation radio surveys. The method uses a convolutional neural network trained on…

Instrumentation and Methods for Astrophysics · Physics 2024-01-17 Elisa Todarello , Andre Scaffidi , Marco Regis , Marco Taoso

Existing fake website detection systems are unable to effectively detect fake websites. In this study, we advocate the development of fake website detection systems that employ classification methods grounded in statistical learning theory…

Computers and Society · Computer Science 2013-10-01 Ahmed Abbasi , Zhu Zhang , Hsinchun Chen

Objects classification generally relies on image acquisition and analysis. Real-time classification of high-speed moving objects is challenging, as both high temporal resolution in image acquisition and low computational complexity in…

Image and Video Processing · Electrical Eng. & Systems 2020-05-20 Zibang Zhang , Xiang Li , Manhong Yao , Shujun Zheng , Guoan Zheng , Jingang Zhong

In the task of anomaly detection in modern time-domain photometric surveys, the primary goal is to identify astrophysically interesting, rare, and unusual objects among a large volume of data. Unfortunately, artifacts -- such as plane or…