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Using unlabeled data to regularize the machine learning models has demonstrated promise for improving safety and reliability in detecting out-of-distribution (OOD) data. Harnessing the power of unlabeled in-the-wild data is non-trivial due…

Machine Learning · Computer Science 2024-02-07 Xuefeng Du , Zhen Fang , Ilias Diakonikolas , Yixuan Li

Traditional SLAM algorithms are typically based on artificial features, which lack high-level information. By introducing semantic information, SLAM can own higher stability and robustness rather than purely hand-crafted features. However,…

Computer Vision and Pattern Recognition · Computer Science 2022-09-16 Xianwei Meng , Bonian Li

Spatial classification with limited feature observations has been a challenging problem in machine learning. The problem exists in applications where only a subset of sensors are deployed at certain spots or partial responses are collected…

Machine Learning · Computer Science 2020-09-03 Arpan Man Sainju , Wenchong He , Zhe Jiang , Da Yan , Haiquan Chen

The rapid expansion of advanced low-Earth orbit (LEO) satellites in large constellations is positioning space assets as key to the future, enabling global internet access and relay systems for deep space missions. A solution to the…

Computer Vision and Pattern Recognition · Computer Science 2025-05-06 Wenxuan Zhang , Peng Hu

We analysed state-of-the-art observations of the solar atmosphere to investigate the dependence of the \ca brightness of several solar features on spectral bandwidth and spatial resolution of the data. Specifically, we study data obtained…

Solar and Stellar Astrophysics · Physics 2023-04-20 M. Murabito , I. Ermolli , T. Chatzistergos , S. Jafarzadeh , F. Giorgi , L. Rouppe van der Voort

Data and data sources have become increasingly essential in recent decades. Scientists and researchers require more data to deploy AI approaches as the field continues to improve. In recent years, the rapid technological advancements have…

Image and Video Processing · Electrical Eng. & Systems 2021-08-26 Necmettin Bayar , W. T Al-Shaibani , Ibraheem Shayea , Abdulkader Taha , Azizul Azizan

Here we present a proof of concept for the application of the Variance of Laplacian (VL) method in quantifying the sharpness of optical solar images. We conducted a comprehensive study using over 65,000 individual solar images acquired on…

Instrumentation and Methods for Astrophysics · Physics 2024-05-21 Chu Wing So , Edwin Lok Hei Yuen , Edgar Heung Fat Leung , Jason Chun Shing Pun

Intrinsic alignments (IAs) of galaxies are an important contaminant for cosmic shear studies, but the modelling is complicated by the dependence of the signal on the source galaxy sample. In this paper, we use the halo model formalism to…

Cosmology and Nongalactic Astrophysics · Physics 2020-12-16 Maria Cristina Fortuna , Henk Hoekstra , Benjamin Joachimi , Harry Johnston , Nora Elisa Chisari , Christos Georgiou , Constance Mahony

Accurate and reliable predictions of solar flares are essential due to their potentially significant impact on Earth and space-based infrastructure. Although deep learning models have shown notable predictive capabilities in this domain,…

Machine Learning · Computer Science 2024-11-28 Temitope Adeyeha , Chetraj Pandey , Berkay Aydin

In recent years, deep network-based methods have continuously refreshed state-of-the-art performance on Salient Object Detection (SOD) task. However, the performance discrepancy caused by different implementation details may conceal the…

Computer Vision and Pattern Recognition · Computer Science 2022-02-08 Huajun Zhou , Yang Lin , Lingxiao Yang , Jianhuang Lai , Xiaohua Xie

The integration of a SLAM algorithm with place recognition technology empowers it with the ability to mitigate accumulated errors and to relocalize itself. However, existing methods for point cloud-based place recognition predominantly rely…

Computer Vision and Pattern Recognition · Computer Science 2023-11-14 Haodong Yuan , Yudong Zhang , Shengyin Fan , Xue Li , Jian Wang

Statistical fault localization (SFL) techniques use execution profiles and success/failure information from software executions, in conjunction with statistical inference, to automatically score program elements based on how likely they are…

Software Engineering · Computer Science 2021-02-15 Yigit Kucuk , Tim A. D. Henderson , Andy Podgurski

Self-calibration techniques for analyzing galaxy cluster counts utilize the abundance and the clustering amplitude of dark matter halos. These properties simultaneously constrain cosmological parameters and the cluster observable-mass…

Astrophysics · Physics 2009-06-23 Hao-Yi Wu , Eduardo Rozo , Risa H. Wechsler

In spite of considerable practical importance, current algorithmic fairness literature lacks technical methods to account for underlying geographic dependency while evaluating or mitigating bias issues for spatial data. We initiate the…

Applications · Statistics 2022-01-31 Subhabrata Majumdar , Cheryl Flynn , Ritwik Mitra

Subhalo abundance matching (SHAM) is a popular technique for assigning galaxy mass or luminosity to haloes produced in N-body simulations. The method works by matching the cumulative number functions of the galaxy and halo properties, and…

Astrophysics of Galaxies · Physics 2021-11-02 Richard Stiskalek , Harry Desmond , Thomas Holvey , Michael G. Jones

Simultaneous Localization And Mapping (SLAM) is a task to estimate the robot location and to reconstruct the environment based on observation from sensors such as LIght Detection And Ranging (LiDAR) and camera. It is widely used in robotic…

Robotics · Computer Science 2021-02-18 Han Wang , Chen Wang , Lihua Xie

The flexibility of Simultaneous Localization and Mapping (SLAM) algorithms in various environments has consistently been a significant challenge. To address the issue of LiDAR odometry drift in high-noise settings, integrating clustering…

Robotics · Computer Science 2024-02-08 Mazeyu Ji , Wenbo Shi , Yujie Cui , Chengju Liu , Qijun Chen

A method for resident space object (RSO) detection in video stream processing using a set of matched filters has been proposed. Matched filters are constructed based on the connection between the Fourier spectrum shape of the difference…

Instrumentation and Methods for Astrophysics · Physics 2024-01-09 V. S. Baranova , A. A. Spiridonov , V. A. Cherny , D. V. Ushakov , V. A. Saetchnikov

Physical phenomena are commonly modeled by numerical simulators. Such codes can take as input a high number of uncertain parameters and it is important to identify their influences via a global sensitivity analysis (GSA). However, these…

Methodology · Statistics 2014-12-04 Matthias De Lozzo , Amandine Marrel

The analysis of time-sequence satellite images is a powerful tool in remote sensing; it is used to explore the statics and dynamics of the surface of the earth. Usually, the quality of multitemporal images is influenced by metrological…

Image and Video Processing · Electrical Eng. & Systems 2024-05-01 Hessah Albanwan
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