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Our goal is to characterize AGN populations by comparing their X-ray and optical classifications. We present a sample of 99 spectroscopically identified X-ray point sources in the XMM-LSS survey which are significantly detected in the…

Explainable machine learning (XML) has emerged as a major challenge in artificial intelligence (AI). Although black-box models such as Deep Neural Networks and Gradient Boosting often exhibit exceptional predictive accuracy, their lack of…

统计方法学 · 统计学 2024-06-18 Evgenii Kuriabov , Jia Li

Computationally explicit hypotheses of brain function derived from machine learning (ML)-based models have recently revolutionized neuroscience. Despite the unprecedented ability of these artificial neural networks (ANNs) to capture…

神经元与认知 · 定量生物学 2023-12-12 Kohitij Kar , Simon Kornblith , Evelina Fedorenko

Video classification is productive in many practical applications, and the recent deep learning has greatly improved its accuracy. However, existing works often model video frames indiscriminately, but from the view of motion, video frames…

计算机视觉与模式识别 · 计算机科学 2017-03-28 Yunzhen Zhao , Yuxin Peng

Background: Several studies indicate that the anterior visual pathway provides information about the dynamics of axonal degeneration in Multiple Sclerosis (MS). Current research in the field is focused on the quest for the most…

图像与视频处理 · 电气工程与系统科学 2023-02-15 Monica Hernandez , Ubaldo Ramon-Julvez , Elisa Vilades , Beatriz Cordon , Elvira Mayordomo , Elena Garcia-Martin

Variability is a main property of active galactic nuclei (AGN) and it was adopted as a selection criterion using multi epoch surveys conducted for the detection of supernovae (SNe). We have used two SN datasets. First we selected the AXAF…

星系天体物理 · 物理学 2010-03-03 K. Boutsia , B. Leibundgut , D. Trevese , F. Vagnetti

Deep learning models have shown strong performance in classifying Alzheimer's disease (AD) from R2* maps, but their decision-making remains opaque, raising concerns about interpretability. Previous studies suggest biases in model decisions,…

图像与视频处理 · 电气工程与系统科学 2025-06-05 Christian Tinauer , Maximilian Sackl , Stefan Ropele , Christian Langkammer

Aspect Category Detection (ACD) aims to identify implicit and explicit aspects in a given review sentence. The state-of-the-art approaches for ACD use Deep Neural Networks (DNNs) to address the problem as a multi-label classification task.…

计算与语言 · 计算机科学 2024-04-09 Murtadha Ahmed , Qun Chen

Generative Adversarial Networks (GANs) have achieved impressive results for many real-world applications. As an active research topic, many GAN variants have emerged with improvements in sample quality and training stability. However,…

Most complex machine learning and modelling techniques are prone to over-fitting and may subsequently generalise poorly to future data. Artificial neural networks are no different in this regard and, despite having a level of implicit…

机器学习 · 统计学 2022-05-26 Vincent Szolnoky , Viktor Andersson , Balazs Kulcsar , Rebecka Jörnsten

We present results of recurrence analysis of 46 active galactic nuclei (AGN) using light curves from the 157-month catalog of the Swift Burst Alert Telescope (BAT) in the 14-150 keV band. We generate recurrence plots and compute recurrence…

高能天体物理现象 · 物理学 2022-11-28 R. A. Phillipson , M. S. Vogeley , P. T. Boyd

High spectral dimensionality and the shortage of annotations make hyperspectral image (HSI) classification a challenging problem. Recent studies suggest that convolutional neural networks can learn discriminative spatial features, which…

计算机视觉与模式识别 · 计算机科学 2018-02-13 Zilong Zhong , Jonathan Li

Recent developments in machine learning have introduced models that approach human performance at the cost of increased architectural complexity. Efforts to make the rationales behind the models' predictions transparent have inspired an…

计算与语言 · 计算机科学 2020-09-29 Pepa Atanasova , Jakob Grue Simonsen , Christina Lioma , Isabelle Augenstein

Class activation map (CAM) helps to formulate saliency maps that aid in interpreting the deep neural network's prediction. Gradient-based methods are generally faster than other branches of vision interpretability and independent of human…

计算机视觉与模式识别 · 计算机科学 2022-07-13 Masud An Nur Islam Fahim , Nazmus Saqib , Shafkat Khan Siam , Ho Yub Jung

Salient object detection has seen remarkable progress driven by deep learning techniques. However, most of deep learning based salient object detection methods are black-box in nature and lacking in interpretability. This paper proposes the…

计算机视觉与模式识别 · 计算机科学 2017-08-21 Huaxin Xiao , Jiashi Feng , Yunchao Wei , Maojun Zhang

Classification is a popular task in the field of Machine Learning (ML) and Artificial Intelligence (AI), and it happens when outputs are categorical variables. There are a wide variety of models that attempts to draw some conclusions from…

天体物理仪器与方法 · 物理学 2023-02-24 Mohammad H. Zhoolideh Haghighi

Graph neural network (GNN) models are increasingly being used for the classification of electroencephalography (EEG) data. However, GNN-based diagnosis of neurological disorders, such as Alzheimer's disease (AD), remains a relatively…

神经元与认知 · 定量生物学 2023-12-21 Dominik Klepl , Fei He , Min Wu , Daniel J. Blackburn , Ptolemaios G. Sarrigiannis

Multi-label (ML) classification is an actively researched topic currently, which deals with convoluted and overlapping boundaries that arise due to several labels being active for a particular data instance. We propose a classifier capable…

机器学习 · 计算机科学 2021-07-22 Anwesha Law , Ashish Ghosh

With the advent of GRAVITY+, the upgrade to the beam combiner GRAVITY at the Very Large Telescope Interferometer (VLTI), fainter and higher redshift active galactic nuclei (AGNs) are becoming observable, opening an unprecedented opportunity…

We present a deep machine learning (ML) approach to constraining cosmological parameters with multi-wavelength observations of galaxy clusters. The ML approach has two components: an encoder that builds a compressed representation of each…

天体物理仪器与方法 · 物理学 2022-02-16 Michelle Ntampaka , Alexey Vikhlinin