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Active learning aims to select the minimum amount of data to train a model that performs similarly to a model trained with the entire dataset. We study the potential of active learning for image segmentation in underwater infrastructure…

Computer Vision and Pattern Recognition · Computer Science 2024-03-22 Luiza Ribeiro Marnet , Yury Brodskiy , Stella Grasshof , Andrzej Wasowski

Deep predictive models rely on human supervision in the form of labeled training data. Obtaining large amounts of annotated training data can be expensive and time consuming, and this becomes a critical bottleneck while building such models…

Machine Learning · Statistics 2020-10-01 Bindya Venkatesh , Jayaraman J. Thiagarajan

Machine-learning (ML) algorithms will play a crucial role in studying the large datasets delivered by new facilities over the next decade and beyond. Here, we investigate the capabilities and limits of such methods in finding galaxies with…

Instrumentation and Methods for Astrophysics · Physics 2019-08-22 Andreas L. Faisst , Abhishek Prakash , Peter L. Capak , Bomee Lee

Nonlinear optical (NLO) materials for generating lasers via second harmonic generation (SHG) are highly sought in today's technology. However, discovering novel materials with considerable SHG is challenging due to the time-consuming and…

Materials Science · Physics 2025-04-29 Yomn Alkabakibi , Congwei Xie , Artem R. Oganov

We utilize a hybrid approach that integrates the traditional cross-correlation function (CCF) and machine learning to detect spectroscopic multi-systems, specifically focusing on double-line spectroscopic binary (SB2). Based on the ninth…

Instrumentation and Methods for Astrophysics · Physics 2024-11-25 Shan-shan Li , Chun-qian Li , Chang-hua Li , Dong-wei Fan , Yun-fei Xu , Lin-ying Mi , Chen-zhou Cui , Jian-rong Shi

The second Fermi-LAT source catalog (2FGL) is the deepest all-sky survey available in the gamma-ray band. It contains 1873 sources, of which 576 remain unassociated. Machine-learning algorithms can be trained on the gamma-ray properties of…

High Energy Astrophysical Phenomena · Physics 2014-01-29 M. Doert , M. Errando

Current synoptic sky surveys monitor large areas of the sky to find variable and transient astronomical sources. As the number of detections per night at a single telescope easily exceeds several thousand, current detection pipelines make…

Recently, CNN object detectors have achieved high accuracy on remote sensing images but require huge labor and time costs on annotation. In this paper, we propose a new uncertainty-based active learning which can select images with more…

Computer Vision and Pattern Recognition · Computer Science 2020-03-20 Zhenshen Qu , Jingda Du , Yong Cao , Qiuyu Guan , Pengbo Zhao

Modern astronomical surveys are producing datasets of unprecedented size and richness, increasing the potential for high-impact scientific discovery. This possibility, coupled with the challenge of exploring a large number of sources, has…

Instrumentation and Methods for Astrophysics · Physics 2024-04-01 Verlon Etsebeth , Michelle Lochner , Mike Walmsley , Margherita Grespan

Current fine-grained classification approaches often rely on a robust localization of object parts to extract localized feature representations suitable for discrimination. However, part localization is a challenging task due to the large…

Computer Vision and Pattern Recognition · Computer Science 2014-11-17 Marcel Simon , Erik Rodner , Joachim Denzler

An active object recognition system has the advantage of being able to act in the environment to capture images that are more suited for training and that lead to better performance at test time. In this paper, we propose a deep…

Artificial Intelligence · Computer Science 2015-12-18 Mohsen Malmir , Karan Sikka , Deborah Forster , Ian Fasel , Javier R. Movellan , Garrison W. Cottrell

Deep Neural Networks (DNNs) often rely on very large datasets for training. Given the large size of such datasets, it is conceivable that they contain certain samples that either do not contribute or negatively impact the DNN's…

Machine Learning · Computer Science 2020-11-10 Kashyap Chitta , Jose M. Alvarez , Elmar Haussmann , Clement Farabet

Deep learning models have become increasingly useful in many different industries. On the domain of image classification, convolutional neural networks proved the ability to learn robust features for the closed set problem, as shown in many…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Rafael S. Pereira , Alexis Joly , Patrick Valduriez , Fabio Porto

Modern detectors of cosmic gamma-rays are a special type of imaging telescopes (air Cherenkov telescopes) supplied with cameras with a relatively large number of photomultiplier-based pixels. For example, the camera of the TAIGA-IACT…

This paper introduces self-taught object localization, a novel approach that leverages deep convolutional networks trained for whole-image recognition to localize objects in images without additional human supervision, i.e., without using…

Computer Vision and Pattern Recognition · Computer Science 2016-02-03 Loris Bazzani , Alessandro Bergamo , Dragomir Anguelov , Lorenzo Torresani

This paper is concerned with pool-based active learning for deep neural networks. Motivated by coreset dataset compression ideas, we present a novel active learning algorithm that queries consecutive points from the pool using…

Machine Learning · Computer Science 2017-11-06 Yonatan Geifman , Ran El-Yaniv

Vulnerability detection is crucial for identifying security weaknesses in software systems. However, training effective machine learning models for this task is often constrained by the high cost and expertise required for data annotation.…

Cryptography and Security · Computer Science 2025-08-19 Xiang Lan , Tim Menzies , Bowen Xu

Collecting an over-the-air wireless communications training dataset for deep learning-based communication tasks is relatively simple. However, labeling the dataset requires expert involvement and domain knowledge, may involve private…

Networking and Internet Architecture · Computer Science 2024-02-08 Nasim Soltani , Jifan Zhang , Batool Salehi , Debashri Roy , Robert Nowak , Kaushik Chowdhury

In many applications the process of generating label information is expensive and time consuming. We present a new method that combines active and semi-supervised deep learning to achieve high generalization performance from a deep…

Machine Learning · Computer Science 2018-03-06 Matthias Rottmann , Karsten Kahl , Hanno Gottschalk

Distinguishing active galaxies from star-forming galaxies is essential for understanding galaxy evolution. Diagnostic methods like the BPT (Baldwin, Phillips, and Terlevich) diagram use optical emission-line ratios to separate galaxies.…

Astrophysics of Galaxies · Physics 2026-03-26 Farideh Mazoochi , Reihaneh Karimi , Mohammad Hossein Zhoolideh Haghighi , Fatemeh Tabatabaei
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