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Very high resolution (VHR) mapping through remote sensing (RS) imagery presents a new opportunity to inform decision-making and sustainable practices in countless domains. Efficient processing of big VHR data requires automated tools…

Computer Vision and Pattern Recognition · Computer Science 2024-12-23 Henry Cording , Yves Plancherel , Pablo Brito-Parada

Understanding the scattering mechanisms from the ground surface in the presence of different vegetation densities is necessary for the interpretation of P-band Synthetic Aperture Radar (SAR) observations and for the design of geophysical…

A new semi-parametric Expected Shortfall (ES) estimation and forecasting framework is proposed. The proposed approach is based on a two-step estimation procedure. The first step involves the estimation of Value-at-Risk (VaR) at different…

Risk Management · Quantitative Finance 2021-03-16 Giuseppe Storti , Chao Wang

Airborne Laser Scanning (ALS) can collect point clouds across large areas, enabling large-scale forest inventory. However, ALS point clouds are sparse and noisy, resulting in inaccurate individual-tree-level forest inventory, such as stem…

Computer Vision and Pattern Recognition · Computer Science 2026-05-11 Jinyuan Shao , Sangyoong Park , Chunxi Zhao , Ayman Habib , Songlin Fei

Relay-assisted free-space optical (FSO) communication systems are exploited as a means to mitigate the limiting effects of the turbulence induced atmospheric scintillation. However, conventional ground relays are stationary, and their…

Information Theory · Computer Science 2021-04-13 Jin-Yuan Wang , Yang Ma , Rong-Rong Lu , Jun-Bo Wang , Min Lin , Julian Cheng

Soil assessment is important for mobile robot planning and navigation on natural and planetary environments. Terramechanic characteristics can be inferred from the thermal behaviour of soils under the influence of sunlight using remote…

Satellite-based remote sensing has revolutionised the way we address global challenges. Huge quantities of Earth Observation (EO) data are generated by satellite sensors daily, but processing these large datasets for use in ML pipelines is…

Computer Vision and Pattern Recognition · Computer Science 2024-11-01 Matthew J Allen , Francisco Dorr , Joseph Alejandro Gallego Mejia , Laura Martínez-Ferrer , Anna Jungbluth , Freddie Kalaitzis , Raúl Ramos-Pollán

Many post-processing algorithms have been developed in order to better separate the signal of a companion from the bright light of the host star, but the effect of such algorithms on the shape of exoplanet spectra extracted from integral…

Earth and Planetary Astrophysics · Physics 2023-10-04 Evert Nasedkin , Paul Mollière , Jason Wang , Faustine Cantalloube , Laura Kreidberg , Laurent Pueyo , Tomas Stolker , Arthur Vigan

Hypercomplex signal processing (HSP) offers powerful tools for analyzing and processing multidimensional signals by explicitly exploiting inter-dimensional correlations through Clifford algebra. In recent years, hypercomplex formulations of…

Signal Processing · Electrical Eng. & Systems 2026-03-02 Kumar Vijay Mishra , Henry Arguello , Brian M. Sadler

The collection of ecological data in the field is essential to diagnose, monitor and manage ecosystems in a sustainable way. Since acquisition of this information through traditional methods are generally time-consuming, due to the…

Computer Vision and Pattern Recognition · Computer Science 2024-01-12 Ion Ciobotari , Adriana Príncipe , Maria Alexandra Oliveira , João Nuno Silva

The increasing availability of geospatial foundation models has the potential to transform remote sensing applications such as land cover classification, environmental monitoring, and change detection. Despite promising benchmark results,…

We employ nonparametric statistical procedures to analyse multitemporal SAR/PolSAR satellite images. The aim is two-fold. We seek parsimony in data representation as well as efficient change detection. For these, wavelets and geostatistical…

Applications · Statistics 2020-01-17 Rodney Fonseca , Guilherme Ludwig , Michel Montoril , Aluísio Pinheiro

Global food security depends on predicting crop responses to climate variability, yet process based crop models remain too computationally expensive for large scale exploration of genotype and environment interactions. Here we develop a…

Computational Engineering, Finance, and Science · Computer Science 2026-05-25 Mojdeh Saadati , Juan Panelo , Gustavo Visentini , Soumik Sarkar , Carlos Messina , Baskar Ganapathysubramanian

High-quality labeled geospatial datasets are essential for extracting insights and understanding our planet. Unfortunately, these datasets often do not span the entire globe and are limited to certain geographic regions where data was…

Advances in hyperspectral imaging modes including electron energy loss spectroscopy (EELS) in scanning transmission electron microscopy (STEM) bring forth the challenges of exploratory and subsequently physics-based analysis of…

Computational Physics · Physics 2020-05-22 Sergei V. Kalinin , Andrew R. Lupini , Rama K. Vasudevan , Maxim Ziatdinov

This paper investigates joint device activity detection and channel estimation for grant-free random access in Low-earth orbit (LEO) satellite communications. We consider uplink communications from multiple single-antenna terrestrial users…

Information Theory · Computer Science 2025-04-09 Rui Mao , Yongpeng Wu , Boxiao Shen , Symeon Chatzinotas , Björn Ottersten , Wenjun Zhang

Accurate estimation of global terrestrial evapotranspiration (ET) is essential to understanding changes in the water cycle, which are expected to intensify in the context of climate change. Current global ET products are derived from…

Atmospheric and Oceanic Physics · Physics 2023-09-14 Haiyang Shi

Geospatial foundation models (GFMs) have emerged as a promising approach to overcoming the limitations in existing featurization methods. More recently, Google DeepMind has introduced AlphaEarth Foundation (AEF), a GFM pre-trained using…

Machine Learning · Computer Science 2026-04-21 Yuchi Ma , Yawen Shen , Anu Swatantran , David B. Lobell

This paper presents an algorithm that relies on a series of dense and deep neural networks for passive microwave retrieval of precipitation. The neural networks learn from coincidences of brightness temperatures from the Global…

Machine Learning · Computer Science 2022-12-06 Reyhaneh Rahimi , Sajad Vahedizadeh , Ardeshir Ebtehaj

This paper investigates the joint optimization of trajectory planning and resource allocation for a high-altitude platform stations synthetic aperture radar (HAPs-SAR) system. To support real-time sensing and conserve the limited energy…

Systems and Control · Electrical Eng. & Systems 2025-07-01 Bang Huang , Kihong Park , Xiaowei Pang , Mohamed-Slim Alouini