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Planetary surfaces are typically analyzed using high-level semantic concepts in natural language, yet vast orbital image archives remain organized at the pixel level. This mismatch limits scalable, open-ended exploration of planetary…

Artificial Intelligence · Computer Science 2026-01-23 Yiran Wang , Shuoyuan Wang , Zhaoran Wei , Jiannan Zhao , Zhonghua Yao , Zejian Xie , Songxin Zhang , Jun Huang , Bingyi Jing , Hongxin Wei

This paper studies Federated Learning (FL) in low Earth orbit (LEO) satellite constellations, where satellites are connected via intra-orbit inter-satellite links (ISLs) to their neighboring satellites. During the FL training process,…

Signal Processing · Electrical Eng. & Systems 2025-01-22 Nasrin Razmi , Sourav Mukherjee , Bho Matthiesen , Armin Dekorsy , Petar Popovski

The composition of Solar System surfaces can be inferred through reflectance and emission spectroscopy, by comparing these observations to laboratory measurements and radiative transfer models. While several populations of objects appear to…

Earth and Planetary Astrophysics · Physics 2020-11-02 Robin Sultana , Olivier Poch , Pierre Beck , Bernard Schmitt , Eric Quirico

Polarized neutron reflectometry is a powerful technique to interrogate the structures of multilayered magnetic materials with depth sensitivity and nanometer resolution. However, reflectometry profiles often inhabit a complicated objective…

Supervised Learning has been successfully used to produce phase diagrams and identify phase boundaries when local order parameters are unavailable. Here, we apply unsupervised learning to this task. By using readily available clustering…

Strongly Correlated Electrons · Physics 2019-08-19 Steven Durr , Sudip Chakravarty

We investigate whether the surfaces of the classical moons of Uranus are compositionally stratified, with a thin veneer of mostly tiny H2O ice grains (<= 2 micron diameters) mantling a lower layer composed of larger grains of H2O ice, dark…

Recently, stochastic geometry has been applied to provide tractable performance analysis for low earth orbit (LEO) satellite networks. However, existing works mainly focus on analyzing the ``coverage probability'', which provides limited…

Information Theory · Computer Science 2023-07-06 Yanshi Sun , Zhiguo Ding

Remote sensing observations suffer significant limitations when used to study the bulk atmospheric composition of the giant planets of our solar system. This impacts our knowledge of the formation of these planets and the physics of their…

Mobile robots rely on maps to navigate through an environment. In the absence of any map, the robots must build the map online from partial observations as they move in the environment. Traditional methods build a map using only direct…

Robotics · Computer Science 2024-10-14 Vishnu Dutt Sharma

Surface albedo is an important parameter in radiative-transfer simulations of the Earth's system as it is fundamental for correctly calculating the energy budget of the planet. The Moderate Resolution Imaging Spectroradiometer (MODIS)…

Earth and Planetary Astrophysics · Physics 2026-05-27 Giulia Roccetti , Luca Bugliaro , Felix Gödde , Claudia Emde , Ulrich Hamann , Mihail Manev , Michael Sterzik , Cedric Wehrum

A general method to obtain a representation of the structural landscape of nanoparticles in terms of a limited number of variables is proposed. The method is applied to a large dataset of parallel tempering molecular dynamics simulations of…

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…

The Galileo Near Infrared Mapping Spectrometer (NIMS) collected spectra of Europa in the 0.7-5.2 $\mu$m wavelength region, which have been critical to improving our understanding of the surface composition of this moon. However, most of the…

Earth and Planetary Astrophysics · Physics 2021-09-27 Ishan Mishra , Nikole Lewis , Jonathan Lunine , Kevin P. Hand , Paul Helfenstein , R. W. Carlson , Ryan J. MacDonald

Competing processes shape Europa's surface: geological activity replenishes material through resurfacing, while bombardment by charged particles alters surface chemical composition. Each process leaves distinct spectral signatures. We…

Earth and Planetary Astrophysics · Physics 2026-03-13 Gideon Yoffe , Sahar Shahaf

This paper presents a data processing pipeline designed to extract information from the hyperspectral signature of unknown space objects. The methodology proposed in this paper determines the material composition of space objects from…

Instrumentation and Methods for Astrophysics · Physics 2024-01-30 Massimiliano Vasile , Lewis Walker , Andrew Campbell , Simao Marto , Paul Murray , Stephen Marshall , Vasili Savitski

Deep neural networks have gained tremendous success in a broad range of machine learning tasks due to its remarkable capability to learn semantic-rich features from high-dimensional data. However, they often require large-scale labelled…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Hu Wang , Guansong Pang , Chunhua Shen , Congbo Ma

The Atmospheric Chemistry Experiment's Fourier Transform Spectrometer on the SCISAT satellite has been measuring infrared transmission spectra of Earth during Solar occultations since 2004. We use these data to build an infrared transit…

Earth and Planetary Astrophysics · Physics 2019-12-12 Evelyn J. R. Macdonald , Nicolas B. Cowan

Broad-band exoplanet transit photometry can characterize the planetary atmosphere when observed at multiple selected filters. This observing technique can reveal gradients in the spectra of extrasolar planets, for example the slope of…

Earth and Planetary Astrophysics · Physics 2017-09-19 Matthias Mallonn , Hannah R. Wakeford

Galaxy morphology is a fundamental quantity, that is essential not only for the full spectrum of galaxy-evolution studies, but also for a plethora of science in observational cosmology. While a rich literature exists on…

Astrophysics of Galaxies · Physics 2020-01-08 Garreth Martin , Sugata Kaviraj , Alex Hocking , Shaun C. Read , James E. Geach

In the context of mobile navigation in unstructured environments, the predominant approach entails the avoidance of obstacles. The prevailing path planning algorithms are contingent upon deviating from the intended path for an indefinite…

Robotics · Computer Science 2025-06-06 Tuba Girgin , Emre Girgin , Cagri Kilic
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