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Despite the wide use of explainability techniques to attempt to understand the behavior of Artificial Intelligence (AI), the generated explanations may not always be reliable. An explanation can appear plausible to humans but fail to…

Machine Learning · Computer Science 2026-05-28 Tomás Pereira , João Vitorino , Eva Maia , Isabel Praça

The sonar images provide a rapid view of the seabed in order to characterize it. However, in such as uncertain environment, real seabed is unknown and the only information we can obtain, is the interpretation of different human experts,…

Computer Vision and Pattern Recognition · Computer Science 2008-12-18 Arnaud Martin , Christophe Osswald

Performance of automatic target recognition from synthetic aperture sonar data is heavily dependent on the complexity of the beamformed imagery. Several mechanisms can contribute to this, including unwanted vehicle dynamics, the bathymetry…

Computer Vision and Pattern Recognition · Computer Science 2018-08-17 Brian Reinhardt , Isaac Gerg , Daniel Brown , Joonho Park

While deep learning makes significant achievements in Artificial Intelligence (AI), the lack of transparency has limited its broad application in various vertical domains. Explainability is not only a gateway between AI and real world, but…

Machine Learning · Computer Science 2020-04-28 Sheng Shi , Yangzhou Du , Wei Fan

This paper explores the intricate relationship between interpretability and robustness in deep learning models. Despite their remarkable performance across various tasks, deep learning models often exhibit critical vulnerabilities,…

Machine Learning · Computer Science 2024-12-30 Navid Nayyem , Abdullah Rakin , Longwei Wang

Improving the performance on an imbalanced training set is one of the main challenges in nowadays Machine Learning. One way to augment and thus re-balance the image dataset is through existing deep generative models, like class-conditional…

Image and Video Processing · Electrical Eng. & Systems 2023-03-10 Chenqi Guo , Fabian Benitez-Quiroz , Qianli Feng , Aleix Martinez

Self-play fine-tuning has demonstrated promising abilities in adapting large language models (LLMs) to downstream tasks with limited real-world data. The basic principle is to iteratively refine the model with real samples and synthetic…

Machine Learning · Computer Science 2025-12-09 Yibo Wang , Qing-Guo Chen , Zhao Xu , Weihua Luo , Kaifu Zhang , Lijun Zhang

The growing reliance on deep learning models in safety-critical domains such as healthcare and autonomous navigation underscores the need for defenses that are both robust to adversarial perturbations and transparent in their…

Machine Learning · Computer Science 2026-01-06 Longwei Wang , Mohammad Navid Nayyem , Abdullah Al Rakin , KC Santosh , Chaowei Zhang , Yang Zhou

Sonar systems are frequently used to classify objects at a distance by using the structure of the echoes of acoustic waves as a proxy for the object's shape and composition. Traditional synthetic aperture processing is highly effective in…

Computational Engineering, Finance, and Science · Computer Science 2021-12-14 Michael Robinson

Advances in unmanned synthetic aperture sonar (SAS) imaging platforms allow for the simultaneous collection of multiband SAS imagery. The imagery is collected over several octaves and the phenomenology's interactions with the sea floor vary…

Computer Vision and Pattern Recognition · Computer Science 2018-08-09 Isaac D Gerg

Given two multi-temporal aerial images, semantic change detection aims to locate the land-cover variations and identify their change types with pixel-wise boundaries. This problem is vital in many earth vision related tasks, such as precise…

Computer Vision and Pattern Recognition · Computer Science 2021-05-11 Kunping Yang , Gui-Song Xia , Zicheng Liu , Bo Du , Wen Yang , Marcello Pelillo , Liangpei Zhang

Synthetic aperture radar (SAR) image change detection is a critical yet challenging task in the field of remote sensing image analysis. The task is non-trivial due to the following challenges: Firstly, intrinsic speckle noise of SAR images…

Image and Video Processing · Electrical Eng. & Systems 2021-10-19 Yunhao Gao , Feng Gao , Junyu Dong , Qian Du , Heng-Chao Li

Methods for interpreting machine learning black-box models increase the outcomes' transparency and in turn generates insight into the reliability and fairness of the algorithms. However, the interpretations themselves could contain…

Machine Learning · Computer Science 2019-06-05 Yujia Zhang , Kuangyan Song , Yiming Sun , Sarah Tan , Madeleine Udell

Traditionally, in supervised machine learning, (a significant) part of the available data (usually 50% to 80%) is used for training and the rest for validation. In many problems, however, the data is highly imbalanced in regard to different…

Machine Learning · Computer Science 2020-04-21 Xiaowei Gu , Plamen P Angelov , Eduardo Almeida Soares

Self-supervised learning (SSL) has emerged as a powerful strategy for representation learning under limited annotation regimes, yet its effectiveness remains highly sensitive to many factors, especially the nature of the target task. In…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Jorge Quesada , Ghassan AlRegib

This paper introduces Synthetic Enclosed Echoes (SEE), a novel dataset designed to enhance robot perception and 3D reconstruction capabilities in underwater environments. SEE comprises high-fidelity synthetic sonar data, complemented by a…

Robotics · Computer Science 2025-05-22 Guilherme de Oliveira , Matheus M. dos Santos , Paulo L. J. Drews-Jr

Imbalanced classification and spurious correlation are common challenges in data science and machine learning. Both issues are linked to data imbalance, with certain groups of data samples significantly underrepresented, which in turn would…

Machine Learning · Statistics 2026-02-10 Ryumei Nakada , Yichen Xu , Lexin Li , Linjun Zhang

Enhancing forward-looking sonar images is critical for accurate underwater target detection. Current deep learning methods mainly rely on supervised training with simulated data, but the difficulty in obtaining high-quality real-world…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Zhisheng Zhang , Peng Zhang , Fengxiang Wang , Liangli Ma , Fuchun Sun

The recognition or understanding of the scenes observed with a SAR system requires a broader range of cues, beyond the spatial context. These encompass but are not limited to: imaging geometry, imaging mode, properties of the Fourier…

Image and Video Processing · Electrical Eng. & Systems 2023-01-11 Mihai Datcu , Zhongling Huang , Andrei Anghel , Juanping Zhao , Remus Cacoveanu

As large language models (LLMs) achieve strong performance on traditional benchmarks, there is an urgent need for more challenging evaluation frameworks that probe deeper aspects of semantic understanding. We introduce SAGE (Semantic…

Artificial Intelligence · Computer Science 2025-09-26 Samarth Goel , Reagan J. Lee , Kannan Ramchandran