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Deep convolutional neural networks (DCNNs) have become the most common solution for automatic image annotation due to their non-parametric nature, good performance, and their accessibility through libraries such as TensorFlow. Among other…

Astrophysics of Galaxies · Physics 2022-01-11 Sanchari Dhar , Lior Shamir

In modern astrophysics, the machine learning has increasingly gained more popularity with its incredibly powerful ability to make predictions or calculated suggestions for large amounts of data. We describe an application of the supervised…

Astrophysics of Galaxies · Physics 2018-12-26 Yu Bai , JiFeng Liu , Song Wang , Fan Yang

Despite the utility of neural networks (NNs) for astronomical time-series classification, the proliferation of learning architectures applied to diverse datasets has thus far hampered a direct intercomparison of different approaches. Here…

Instrumentation and Methods for Astrophysics · Physics 2020-10-05 Sara Jamal , Joshua S. Bloom

In the context of radio galaxy classification, most state-of-the-art neural network algorithms have been focused on single survey data. The question of whether these trained algorithms have cross-survey identification ability or can be…

Instrumentation and Methods for Astrophysics · Physics 2019-07-31 Hongming Tang , Anna M. M. Scaife , J. P. Leahy

Deep learning models are being increasingly adopted in wide array of scientific domains, especially to handle high-dimensionality and volume of the scientific data. However, these models tend to be brittle due to their complexity and…

Astrophysics of Galaxies · Physics 2021-11-03 A. Ćiprijanović , D. Kafkes , G. N. Perdue , K. Pedro , G. Snyder , F. J. Sánchez , S. Madireddy , S. M. Wild , B. Nord

This paper addresses the task of set prediction using deep learning. This is important because the output of many computer vision tasks, including image tagging and object detection, are naturally expressed as sets of entities rather than…

Computer Vision and Pattern Recognition · Computer Science 2017-08-14 S. Hamid Rezatofighi , Vijay Kumar B G , Anton Milan , Ehsan Abbasnejad , Anthony Dick , Ian Reid

DenseNet architectures have demonstrated impressive performance in image classification tasks, but limited research has been conducted on using character-level DenseNet (char-DenseNet) architectures for text classification tasks. It is not…

Computation and Language · Computer Science 2020-12-07 Trevor Londt , Xiaoying Gao , Peter Andreae

With the advent of new spectroscopic surveys from ground and space, observing up to hundreds of millions of galaxies, spectra classification will become overwhelming for standard analysis techniques. To prepare for this challenge, we…

Astrophysics of Galaxies · Physics 2022-06-08 Fucheng Zhong , Rui Li , Nicola R. Napolitano

Multitask learning, i.e. learning several tasks at once with the same neural network, can improve performance in each of the tasks. Designing deep neural network architectures for multitask learning is a challenge: There are many ways to…

Neural and Evolutionary Computing · Computer Science 2018-04-19 Jason Liang , Elliot Meyerson , Risto Miikkulainen

Visual observation of Cumulus Oocyte Complexes provides only limited information about its functional competence, whereas the molecular evaluations methods are cumbersome or costly. Image analysis of mammalian oocytes can provide attractive…

Computer Vision and Pattern Recognition · Computer Science 2019-01-11 Viswanath P Sudarshan , Tobias Weiser , Phalgun Chintala , Subhamoy Mandal , Rahul Dutta

Next-generation radio surveys will yield an unprecedented amount of data, warranting analysis by use of machine learning techniques. Convolutional neural networks are the deep learning technique that has proven to be the most successful in…

Instrumentation and Methods for Astrophysics · Physics 2019-05-29 V. Lukic , M. Brüggen , B. Mingo , J. H. Croston , G. Kasieczka , P. N. Best

Wildlife populations in Africa face severe threats, with vertebrate numbers declining by over 65% in the past five decades. In response, image classification using deep learning has emerged as a promising tool for biodiversity monitoring…

Galaxy morphology analysis involves studying galaxies based on their shapes and structures. For such studies, fundamental tasks include identifying and classifying galaxies in astronomical images, as well as retrieving visually or…

Computer Vision and Pattern Recognition · Computer Science 2025-09-04 Ruoqi Wang , Haitao Wang , Qiong Luo

The cosmic web plays a major role in the formation and evolution of galaxies and defines, to a large extent, their properties. However, the relation between galaxies and environment is still not well understood. Here we present a machine…

Astrophysics of Galaxies · Physics 2018-04-11 Jianan Hui , Miguel A. Aragon-Calvo , Xinping Cui , James M. Flegal

We present a deep learning framework for computer-aided lung cancer diagnosis. Our multi-stage framework detects nodules in 3D lung CAT scans, determines if each nodule is malignant, and finally assigns a cancer probability based on these…

Computer Vision and Pattern Recognition · Computer Science 2017-05-29 Kingsley Kuan , Mathieu Ravaut , Gaurav Manek , Huiling Chen , Jie Lin , Babar Nazir , Cen Chen , Tse Chiang Howe , Zeng Zeng , Vijay Chandrasekhar

Automatic pulmonary nodules classification is significant for early diagnosis of lung cancers. Recently, deep learning techniques have enabled remarkable progress in this field. However, these deep models are typically of high computational…

Image and Video Processing · Electrical Eng. & Systems 2021-01-20 Hanliang Jiang , Fuhao Shen , Fei Gao , Weidong Han

We present morphological classifications of over 41,000 galaxies out to $z_{\rm phot}\sim2.5$ across six square degrees of the Euclid Deep Field North (EDFN) from the Hawaii Twenty Square Degree (H20) survey, a part of the wider Cosmic Dawn…

Artificial intelligence methods show great promise in increasing the quality and speed of work with large astronomical datasets, but the high complexity of these methods leads to the extraction of dataset-specific, non-robust features.…

Astrophysics of Galaxies · Physics 2023-03-23 A. Ćiprijanović , A. Lewis , K. Pedro , S. Madireddy , B. Nord , G. N. Perdue , S. M. Wild

Morphology is a powerful indicator of a galaxy's dynamical and merger history. It is strongly correlated with many physical parameters, including mass, star formation history and the distribution of mass. The Galaxy Zoo project collected…

Optical transmission spectroscopy is one method to understand brain tissue structural properties from brain tissue biopsy samples, yet manual interpretation is resource intensive and prone to inter observer variability. Deep convolutional…

Medical Physics · Physics 2025-05-20 Mohnish Sao , Mousa Alrubayan , Prabhakar Pradhan