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Soil organic carbon (SOC) is a critical indicator of soil health, but its accurate estimation from satellite imagery is hindered in vegetated regions due to spectral contamination from plant cover, which obscures soil reflectance and…

图像与视频处理 · 电气工程与系统科学 2025-05-27 Dristi Datta , Manoranjan Paul , Manzur Murshed , Shyh Wei Teng , Leigh M. Schmidtke

The agricultural sector is undergoing rapid change due to climate pressures, demographic shifts, and uneven economic development, increasing the demand for reliable environmental indicators at fine spatial scales. However, limited data…

应用统计 · 统计学 2026-04-29 Riccardo Pajno , Felicetta Carillo , Paolo Maranzano , Timo Schmid , Riccardo Borgoni

Cellular-connected unmanned aerial vehicles (UAVs) have recently attracted a surge of interest in both academia and industry. Understanding the air-to-ground (A2G) propagation channels is essential to enable reliable and/or high-throughput…

High-Altitude Platform Stations (HAPS) are emerging as key enablers of future non-terrestrial networks (NTNs), supporting gigabit-class free-space optical (FSO) backhaul links while hosting laser-based sensing payloads. This tutorial and…

光学 · 物理学 2025-11-11 Ali Elkhazraji , Mohamed-Slim Alouini , Aamir Farooq

Data assimilation is a vital component in modern global medium-range weather forecasting systems to obtain the best estimation of the atmospheric state by combining the short-term forecast and observations. Recently, AI-based data…

机器学习 · 计算机科学 2024-06-05 Kun Chen , Tao Chen , Peng Ye , Hao Chen , Kang Chen , Tao Han , Wanli Ouyang , Lei Bai

Air pollution is a major problem today that causes serious damage to human health. Urban areas are the most affected by the degradation of air quality caused by anthropogenic gas emissions. Although there are multiple proposals for air…

分布式、并行与集群计算 · 计算机科学 2024-01-30 Badr-Eddine Boudriki Semlali , Chaker El Amrani , Guadalupe Ortiz , Juan Boubeta-Puig , Alfonso Garcia-de-Prado

In the era of exploding survey volumes, traditional methods of spectroscopic analysis are being pushed to their limits. In response, we develop deep-REMAP, a novel deep learning framework that utilizes a regularized, multi-task approach to…

天体物理仪器与方法 · 物理学 2025-10-13 Sankalp Gilda

Due to their flexibility, aerial vehicles (AVs), such as unmanned aerial vehicles and airships, are widely employed as relays to assist communications between massive ground users (GUs) and satellites, forming an AV-relayed…

数值分析 · 数学 2025-03-21 Yulei Wang , Yalin Liu , Yaru Fu , Yujie Qin , Zhongjie Li

Light field (LF) imaging, which captures both spatial and angular information of a scene, is undoubtedly beneficial to numerous applications. Although various techniques have been proposed for LF acquisition, achieving both angularly and…

计算机视觉与模式识别 · 计算机科学 2022-01-05 Trung-Hieu Tran , Jan Berberich , Sven Simon

Human actions have accelerated changes in global temperature, precipitation patterns, and other critical Earth systems. Key markers of these changes can be linked to the dynamic of Essential Climate Variables (ECVs) and related quantities,…

This study extracted photosynthetic phenology indicators (SOS, POS, EOS) from daily GPP data at the weather-station scale for the mid- to high-latitude regions of the Northern Hemisphere from 2001 to 2019. The resulting dataset covers…

地球物理 · 物理学 2025-09-04 Haiyang Shi

This work focuses on channel estimation in extremely large aperture array (ELAA) systems, where near-field propagation and spatial non-stationarity introduce complexities that hinder the effectiveness of traditional estimation techniques. A…

信号处理 · 电气工程与系统科学 2025-08-07 Thibaut Ceulemans , Cel Thys , Robbert Beerten , Zhuangzhuang Cui , Sofie Pollin

Using very long baseline interferometry (VLBI) observations at (sub)millimeter wavelengths, the Event Horizon Telescope (EHT) currently achieves the finest angular resolution of any astronomical facility, necessary for imaging the…

天体物理仪器与方法 · 物理学 2025-10-23 Uri Rolls , Dominic W. Pesce , Paul Tiede , Lindy Blackburn , Iniyan Natarajan , Sheperd S. Doeleman

We applied machine learning to the entire data history of ESO's High Accuracy Radial Velocity Planet Searcher (HARPS) instrument. Our primary goal was to recover the physical properties of the observed objects, with a secondary emphasis on…

太阳与恒星天体物理 · 物理学 2024-12-13 Vojtěch Cvrček , Martino Romaniello , Radim Šára , Wolfram Freudling , Pascal Ballester

Satellite-based retrieval has become a popular PM2.5 monitoring method currently. To improve the retrieval performance, multiple variables are usually introduced as auxiliary variable in addition to aerosol optical depth (AOD). Different…

大气与海洋物理 · 物理学 2019-07-09 Qianqian Yang , Qiangqiang Yuan , Linwei Yue , Huanfeng Shen , Liangpei Zhang

Radio polarimetry is an invaluable tool to investigate the physical conditions and variability processes in active galactic nuclei (AGN) jets. However, detecting their linear and circular polarization properties is a challenging endeavor…

高能天体物理现象 · 物理学 2016-11-30 Ioannis Myserlis , Emmanouil Angelakis , Alex Kraus , Lars Fuhrmann , Vassilis Karamanavis , J. Anton Zensus

Periodicity is often studied in timeseries modelling with autoregressive methods but is less popular in the kernel literature, particularly for higher dimensional problems such as in textures, crystallography, and quantum mechanics. Large…

机器学习 · 统计学 2018-05-15 Anthony Tompkins , Fabio Ramos

With the growing size of pre-trained models, full fine-tuning and storing all the parameters for various downstream tasks is costly and infeasible. In this paper, we propose a new parameter-efficient fine-tuning method, Gradient-based…

计算机视觉与模式识别 · 计算机科学 2024-12-02 Zhi Zhang , Qizhe Zhang , Zijun Gao , Renrui Zhang , Ekaterina Shutova , Shiji Zhou , Shanghang Zhang

Phase retrieval refers to the problem of recovering a signal $\mathbf{x}_{\star}\in\mathbb{C}^n$ from its phaseless measurements $y_i=|\mathbf{a}_i^{\mathrm{H}}\mathbf{x}_{\star}|$, where $\{\mathbf{a}_i\}_{i=1}^m$ are the measurement…

信息论 · 计算机科学 2020-09-10 Junjie Ma , Rishabh Dudeja , Ji Xu , Arian Maleki , Xiaodong Wang
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