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Change detection, as an important and widely applied technique in the field of remote sensing, aims to analyze changes in surface areas over time and has broad applications in areas such as environmental monitoring, urban development, and…

Computer Vision and Pattern Recognition · Computer Science 2024-10-11 Zihan Yu , Tianxiao Li , Yuxin Zhu , Rongze Pan

Anomaly detection is a challenging problem in machine learning, and is even more so when dealing with instances that are captured in low-level, raw data representations without a well-behaved set of engineered features. The Radial Basis…

Machine Learning · Computer Science 2021-02-01 Mehran H. Z. Bazargani , Arjun Pakrashi , Brian Mac Namee

Radio Frequency Interference (RFI) poses a significant challenge in radio astronomy, arising from terrestrial and celestial sources, disrupting observations conducted by radio telescopes. Addressing RFI involves intricate heuristic…

Neural and Evolutionary Computing · Computer Science 2024-12-09 Nicholas J. Pritchard , Andreas Wicenec , Mohammed Bennamoun , Richard Dodson

Unlike areas such as computer vision and speech recognition where convolutional and recurrent neural networks-based approaches have proven effective to the nature of the respective areas of application, deep learning (DL) still lacks a…

Signal Processing · Electrical Eng. & Systems 2021-05-14 Khalid Youssef , Greg Schuette , Yubin Cai , Daisong Zhang , Yikun Huang , Yahya Rahmat-Samii , Louis-S. Bouchard

We introduce a new pipeline for analyzing and mitigating radio frequency interference (RFI), which we call Sky-Subtracted Incoherent Noise Spectra (SSINS). SSINS is designed to identify and remove faint RFI below the single baseline thermal…

Instrumentation and Methods for Astrophysics · Physics 2019-10-10 Michael J. Wilensky , Miguel F. Morales , Bryna J. Hazelton , Nichole Barry , Ruby Byrne , Sumit Roy

We present a data generation framework designed to simulate spoofing attacks and randomly place attack scenarios worldwide. We apply deep neural network-based models for spoofing detection, utilizing Long Short-Term Memory networks and…

Cryptography and Security · Computer Science 2025-10-24 Jan Zelinka , Oliver Kost , Marek Hrúz

Skin cancer is one of the most prevalent and potentially life-threatening diseases worldwide, necessitating early and accurate diagnosis to improve patient outcomes. Conventional diagnostic methods, reliant on clinical expertise and…

Computer Vision and Pattern Recognition · Computer Science 2025-01-28 Mirza Ahsan Ullah , Tehseen Zia

Searching for fleeting radio transients like fast radio bursts (FRBs) with wide-field radio telescopes has become a common challenge in data-intensive science. Conventional algorithms normally cost enormous time to seek candidates by…

Instrumentation and Methods for Astrophysics · Physics 2025-12-23 Yao Chen , Rui Luo , Chen Wang , Yong-Kun Zhang , Shiqian Zhao , Chengbing Lyu , ZePeng Zheng , Hai Lei , DeJiang Zhou , Chenhui Niu , JinLin Han , George Hobbs , Di Li , Chengwei Liang , Siyi Tan , Ting Tian

Deep learning has achieved remarkable success in medical image analysis, however its adoption in clinical practice is limited by a lack of interpretability. These models often make correct predictions without explaining their reasoning.…

Image and Video Processing · Electrical Eng. & Systems 2025-10-03 Jhonatan Contreras , Thomas Bocklitz

This study investigates the performance of various classification models for a malware classification task using different feature sets and data configurations. Six models-Logistic Regression, K-Nearest Neighbors (KNN), Support Vector…

Machine Learning · Computer Science 2025-03-05 Areej Dweib , Montaser Tanina , Shehab Alawi , Mohammad Dyab , Huthaifa I. Ashqar

Inertial navigation systems (INS) are widely used in both manned and autonomous platforms. One of the most critical tasks prior to their operation is to accurately determine their initial alignment while stationary, as it forms the…

Robotics · Computer Science 2025-11-20 Daniel Engelsman , Itzik Klein

Radio Frequency Interference (RFI) increasingly contaminates the radio astronomy spectrum, often exceeding astronomical signal amplitudes by 50-70 dB. Reliable detection and mitigation are therefore essential for studies of faint transient…

Instrumentation and Methods for Astrophysics · Physics 2026-05-08 Natalia A. Schmid , Sasanka Katreddi , Yechan Kweon

Signal artefacts due to Radio Frequency Interference (RFI) are a common nuisance in radio astronomy. Conventionally, the RFI-affected data are tagged by an expert data analyst in order to warrant data quality. In view of the increasing data…

Instrumentation and Methods for Astrophysics · Physics 2018-08-30 Paul Ray Burd , Karl Mannheim , Tobias März , Jonas Ringholz , Alexander Kappes , Matthias Kadler

Searches and analyses of strong gravitational lenses are challenging due to the rarity and image complexity of these astronomical objects. Next-generation surveys (both ground- and space-based) will provide more opportunities to derive…

Astrophysics of Galaxies · Physics 2019-11-18 Clecio Bom , Jason Poh , Brian Nord , Manuel Blanco-Valentin , Luciana Dias

Global navigation satellite system (GNSS) interference poses a serious threat to reliable positioning, especially in indoor and multipath-rich environments where source localization is highly challenging. In this paper, we formulate GNSS…

Automatic airplane detection in aerial imagery has a variety of applications. Two of the significant challenges in this task are variations in the scale and direction of the airplanes. To solve these challenges, we present a…

Computer Vision and Pattern Recognition · Computer Science 2020-11-03 Mohammad Reza Mohammadi

Global Navigation Satellite Systems (GNSS) are vital for reliable urban positioning. However, multipath and non-line-of-sight reception often introduce large measurement errors that degrade accuracy. Learning-based methods for predicting…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Jiaqi Zhu , Shouyi Lu , Ziyao Li , Guirong Zhuo , Lu Xiong

The rapid development of technology has led to an increase in the number of devices that rely on position, velocity, and time (PVT) information to perform their functions. As such, the Global Navigation Satellite Systems (GNSS) have been…

Signal Processing · Electrical Eng. & Systems 2025-11-04 Leatile Marata , Juhani Sankari , Eslam Eldeeb , Mikko Valkama , Elena Simona Lohan

Airplane detection from satellite imagery is a challenging task due to the complex backgrounds in the images and differences in data acquisition conditions caused by the sensor geometry and atmospheric effects. Deep learning methods provide…

Computer Vision and Pattern Recognition · Computer Science 2024-06-12 Tolga Bakirman , Elif Sertel

Image retrieval enables an efficient search through vast amounts of satellite imagery and returns similar images to a query. Deep learning models can identify images across various semantic concepts without the need for annotations. This…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Benedikt Blumenstiel , Viktoria Moor , Romeo Kienzler , Thomas Brunschwiler