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Observing the individual building blocks of matter is one of the primary goals of microscopy. The invention of the scanning tunneling microscope [1] revolutionized experimental surface science in that atomic-scale features on a solid-state…

Materials Science · Physics 2008-08-04 Jannik C. Meyer , C. O. Girit , M. F. Crommie , A. Zettl

Support estimation (SE) of a sparse signal refers to finding the location indices of the non-zero elements in a sparse representation. Most of the traditional approaches dealing with SE problem are iterative algorithms based on greedy…

Signal Processing · Electrical Eng. & Systems 2026-05-06 Mehmet Yamac , Mete Ahishali , Serkan Kiranyaz , Moncef Gabbouj

Low-energy cosmic rays ($<1$ TeV) are a pivotal source of ionisation of the interstellar medium, where they play a central role in determining the gas chemical composition and drastically influence the formation of stars and planets. Over…

Astrophysics of Galaxies · Physics 2023-05-05 Giovanni Sabatini , Stefano Bovino , Elena Redaelli

This paper proposes a novel algorithm for vehicle speed-aided monocular visual-inertial localization using a topological map. The proposed system aims to address the limitations of existing methods that rely heavily on expensive sensors…

Computer Vision and Pattern Recognition · Computer Science 2024-11-11 Chanuk Yang , Hayeon O , Kunsoo Huh

Compressive sensing is a sensing protocol that facilitates reconstruction of large signals from relatively few measurements by exploiting known structures of signals of interest, typically manifested as signal sparsity. Compressive…

Quantum Physics · Physics 2022-08-10 Kyle Sherbert , Naveed Naimipour , Haleh Safavi , Harry Shaw , Mojtaba Soltanalian

We estimate spatial gradients in the ionosphere using the Global Positioning System (GPS) and GLONASS (Russian global navigation system) observations, utilising data from multiple GPS stations in the vicinity of Murchison Radio-astronomy…

Electron impact ionization is critical in producing the ionospheres on many planetary bodies and, as discussed here, is critical for interpreting spacecraft and telescopic observations of the tenuous atmospheres of the icy Galilean…

Earth and Planetary Astrophysics · Physics 2023-03-22 Shane R. Carberry Mogan , Robert E. Johnson , Audrey Vorburger , Lorenz Roth

Benefitting from the vast spatial degrees of freedom, the amalgamation of integrated sensing and communication (ISAC) and massive multiple-input multiple-output (MIMO) is expected to simultaneously improve spectral and energy efficiencies…

Information Theory · Computer Science 2024-01-18 Ruoyu Zhang , Lei Cheng , Shuai Wang , Yi Lou , Yulong Gao , Wen Wu , Derrick Wing Kwan Ng

Recently, Low Earth Orbit (LEO) satellite networks (i.e., non-terrestrial network (NTN)), such as Starlink, have been successfully deployed to provide broader coverage than terrestrial networks (TN). Due to limited spectrum resources, TN…

Networking and Internet Architecture · Computer Science 2025-01-07 Haoxuan Yuan , Zhe Chen , Zheng Lin , Jinbo Peng , Yuhang Zhong , Xuanjie Hu , Songyan Xue , Wei Li , Yue Gao

Maps provide robots with crucial environmental knowledge, thereby enabling them to perform interactive tasks effectively. Easily accessing accurate abstract-to-detailed geometric and semantic concepts from maps is crucial for robots to make…

Robotics · Computer Science 2024-03-26 Tianshuai Hu , Jianhao Jiao , Yucheng Xu , Hongji Liu , Sheng Wang , Ming Liu

Unsupervised point cloud completion aims to infer the whole geometry of a partial object observation without requiring partial-complete correspondence. Differing from existing deterministic approaches, we advocate generative modeling based…

Computer Vision and Pattern Recognition · Computer Science 2022-11-15 Ruikai Cui , Shi Qiu , Saeed Anwar , Jing Zhang , Nick Barnes

Near-equatorial great enhancements of the quasi-trapped >30 keV electrons at low-altitudes are studied during strong geomagnetic storms. We have found that the transient phenomenon often began at the morning and was capable to live several…

Space Physics · Physics 2013-01-14 A. V. Suvorova , A. V. Dmitriev , L. -C. Tsai

Terrain assessment is a key aspect for autonomous exploration rovers, surrounding environment recognition is required for multiple purposes, such as optimal trajectory planning and autonomous target identification. In this work we present a…

Computer Vision and Pattern Recognition · Computer Science 2020-06-18 Sebastiano Chiodini , Luca Torresin , Marco Pertile , Stefano Debei

This manuscript analyzes IONORT-ISP-WC, an advanced ionospheric ray-tracing tool improving HF radio wave propagation predictions. It significantly upgrades IONORT-ISP by integrating a double-exponential collision frequency model for the…

Geophysics · Physics 2025-07-01 Alessandro Settimi

We present the first full-sky analysis of the cosmic ray arrival direction distribution with data collected by the HAWC and IceCube observatories in the Northern and Southern hemispheres at the same median primary particle energy of 10 TeV.…

High Energy Astrophysical Phenomena · Physics 2019-01-28 HAWC Collaboration , A. U. Abeysekara , R. Alfaro , C. Alvarez , J. D. Álvarez , R. Arceo , J. C. Arteaga-Velázquez , D. Avila Rojas , E. Belmont-Moreno , S. Y. BenZvi , C. Brisbois , T. Capistrán , A. Carramiñana , S. Casanova , U. Cotti , J. Cotzomi , J. C. Díaz-Vélez , C. De León , E. De la Fuente , S. Dichiara , M. A. DuVernois , C. Espinoza , D. W. Fiorino , H. Fleischhack , N. Fraija , A. Galván-Gámez , J. A. García-González , M. M. González , J. A. Goodman , Z. Hampel-Arias , J. P. Harding , S. Hernandez , B. Hona , F. Hueyotl-Zahuantitla , A. Iriarte , A. Jardin-Blicq , V. Joshi , A. Lara , H. León Vargas , G. Luis-Raya , K. Malone , S. S. Marinelli , J. Martínez-Castro , O. Martinez , J. A. Matthews , P. Miranda-Romagnoli , E. Moreno , M. Mostafá , L. Nellen , M. Newbold , M. U. Nisa , R. Noriega-Papaqui , E. G. Pérez-Pérez , J. Pretz , Z. Ren , C. D. Rho , C. Rivière , D. Rosa-González , M. Rosenberg , H. Salazar , F. Salesa Greus , A. Sandoval , M. Schneider , H. Schoorlemmer , G. Sinnis , A. J. Smith , P. Surajbali , I. Taboada , K. Tollefson , I. Torres , L. Villaseño , T. Weisgarber , J. Wood , A. Zepeda , H. Zhou , IceCube Collaboration , : , M. G. Aartsen , M. Ackermann , J. Adams , J. A. Aguilar , M. Ahlers , M. Ahrens , D. Altmann , K. Andeen , T. Anderson , I. Ansseau , G. Anton , C. Argüelles , J. Auffenberg , S. Axani , P. Backes , H. Bagherpour , X. Bai , A. Barbano , J. P. Barron , S. W. Barwick , V. Baum , R. Bay , J. J. Beatty , K. -H. Becker , J. Becker Tjus , S. BenZvi , D. Berley , E. Bernardini , D. Z. Besson , G. Binder , D. Bindig , E. Blaufuss , S. Blot , C. Bohm , M. Börner , F. Bos , S. Böser , O. Botner , E. Bourbeau , J. Bourbeau , F. Bradascio , J. Braun , H. -P. Bretz , S. Bron , J. Brostean-Kaiser , A. Burgman , R. S. Busse , T. Carver , C. Chen , E. Cheung , D. Chirkin , K. Clark , L. Classen , G. H. Collin , J. M. Conrad , P. Coppin , P. Correa , D. F. Cowen , R. Cross , P. Dave , M. Day , J. P. A. M. de André , C. De Clercq , J. J. DeLaunay , H. Dembinski , K. Deoskar , S. De Ridder , P. Desiati , K. D. de Vries , G. de Wasseige , M. de With , T. DeYoung , J. C. Díaz-Vélez , H. Dujmovic , M. Dunkman , E. Dvorak , B. Eberhardt , T. Ehrhardt , B. Eichmann , P. Eller , P. A. Evenson , S. Fahey , A. R. Fazely , J. Felde , K. Filimonov , C. Finley , A. Franckowiak , E. Friedman , A. Fritz , T. K. Gaisser , J. Gallagher , E. Ganster , S. Garrappa , L. Gerhardt , K. Ghorbani , W. Giang , T. Glauch , T. Glüsenkamp , A. Goldschmidt , J. G. Gonzalez , D. Grant , Z. Griffith , C. Haack , A. Hallgren , L. Halve , F. Halzen , K. Hanson , D. Hebecker , D. Heereman , K. Helbing , R. Hellauer , S. Hickford , J. Hignight , G. C. Hill , K. D. Hoffman , R. Hoffmann , T. Hoinka , B. Hokanson-Fasig , K. Hoshina , F. Huang , M. Huber , K. Hultqvist , M. Hünnefeld , R. Hussain , S. In , N. Iovine , A. Ishihara , E. Jacobi , G. S. Japaridze , M. Jeong , K. Jero , B. J. P. Jones , P. Kalaczynski , W. Kang , A. Kappes , D. Kappesser , T. Karg , A. Karle , U. Katz , M. Kauer , A. Keivani , J. L. Kelley , A. Kheirandish , J. Kim , T. Kintscher , J. Kiryluk , T. Kittler , S. R. Klein , R. Koirala , H. Kolanoski , L. Köpke , C. Kopper , S. Kopper , D. J. Koskinen , M. Kowalski , K. Krings , M. Kroll , G. Krückl , S. Kunwar , N. Kurahashi , A. Kyriacou , M. Labare , J. L. Lanfranchi , M. J. Larson , F. Lauber , K. Leonard , M. Leuermann , Q. R. Liu , E. Lohfink , C. J. Lozano Mariscal , L. Lu , J. Lünemann , W. Luszczak , J. Madsen , G. Maggi , K. B. M. Mahn , Y. Makino , S. Mancina , I. C. Mariş , R. Maruyama , K. Mase , R. Maunu , K. Meagher , M. Medici , A. Medina , M. Meier , T. Menne , G. Merino , T. Meures , S. Miarecki , J. Micallef , G. Momenté , T. Montaruli , R. W. Moore , M. Moulai , R. Nagai , R. Nahnhauer , P. Nakarmi , U. Naumann , G. Neer , H. Niederhausen , S. C. Nowicki , D. R. Nygren , A. Obertacke Pollmann , A. Olivas , A. O'Murchadha , E. O'Sullivan , T. Palczewski , H. Pandya , D. V. Pankova , P. Peiffer , C. Pérez de los Heros , D. Pieloth , E. Pinat , A. Pizzuto , M. Plum , P. B. Price , G. T. Przybylski , C. Raab , A. Raissi , M. Rameez , L. Rauch , K. Rawlins , I. C. Rea , R. Reimann , B. Relethford , G. Renzi , E. Resconi , W. Rhode , M. Richman , S. Robertson , M. Rongen , C. Rott , T. Ruhe , D. Ryckbosch , D. Rysewyk , I. Safa , S. E. Sanchez Herrera , A. Sandrock , J. Sandroos , M. Santander , S. Sarkar , S. Sarkar , K. Satalecka , M. Schaufel , P. Schlunder , T. Schmidt , A. Schneider , J. Schneider , S. Schöneberg , L. Schumacher , S. Sclafani , D. Seckel , S. Seunarine , J. Soedingrekso , D. Soldin , M. Song , G. M. Spiczak , C. Spiering , J. Stachurska , M. Stamatikos , T. Stanev , A. Stasik , R. Stein , J. Stettner , A. Steuer , T. Stezelberger , R. G. Stokstad , A. Stößl , N. L. Strotjohann , T. Stuttard , G. W. Sullivan , M. Sutherland , I. Taboada , F. Tenholt , S. Ter-Antonyan , A. Terliuk , S. Tilav , M. N. Tobin , C. Tönnis , S. Toscano , D. Tosi , M. Tselengidou , C. F. Tung , A. Turcati , R. Turcotte , C. F. Turley , B. Ty , E. Unger , M. A. Unland Elorrieta , M. Usner , J. Vandenbroucke , W. Van Driessche , D. van Eijk , N. van Eijndhoven , S. Vanheule , J. van Santen , M. Vraeghe , C. Walck , A. Wallace , M. Wallraff , N. Wandkowsky , F. D. Wandler , T. B. Watson , C. Weaver , M. J. Weiss , J. Weldert , C. Wendt , J. Werthebach , S. Westerhoff , B. J. Whelan , N. Whitehorn , K. Wiebe , C. H. Wiebusch , L. Wille , D. R. Williams , L. Wills , M. Wolf , J. Wood , T. R. Wood , E. Woolsey , K. Woschnagg , G. Wrede , D. L. Xu , X. W. Xu , Y. Xu , J. P. Yanez , G. Yodh , S. Yoshida , T. Yuan

The HI 21cm global signal from the Cosmic Dawn and the Epoch of Reionization (EoR) offers critical insights into the evolution of our Universe. Yet, its detection presents significant challenges due to its extremely low…

Cosmology and Nongalactic Astrophysics · Physics 2024-04-09 Yue Wang , Xin Wang , Shijie Sun , Fengquan Wu , Shoudong Luo , Xuelei Chen

We present a new method to localize a camera within a previously unseen environment perceived from an egocentric point of view. Although this is, in general, an ill-posed problem, humans can effortlessly and efficiently determine their…

Computer Vision and Pattern Recognition · Computer Science 2018-12-04 Jayant Sharma , Zixing Wang , Alberto Speranzon , Vijay Venkataraman , Hyun Soo Park

We propose tensor-network compressed sensing (TNCS) by combining the ideas of compressed sensing, tensor network (TN), and machine learning, which permits novel and efficient quantum communications of realistic data. The strategy is to use…

Machine Learning · Statistics 2020-09-02 Shi-Ju Ran , Zheng-Zhi Sun , Shao-Ming Fei , Gang Su , Maciej Lewenstein

Robots require a semantic understanding of their surroundings to operate in an efficient and explainable way in human environments. In the literature, there has been an extensive focus on object labeling and exhaustive scene graph…

Robotics · Computer Science 2024-04-16 Roberto Bigazzi , Lorenzo Baraldi , Shreyas Kousik , Rita Cucchiara , Marco Pavone

Optical spectroscopies provide a powerful tool for harnessing light-matter interactions for unraveling complex electronic features such as the flat bands and nontrivial topologies of materials. These insights are crucial for the development…

Materials Science · Physics 2025-12-11 Ting-Wei Hsu , Zhenyao Fang , Arun Bansil , Qimin Yan