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Discovering pulsars is a significant and meaningful research topic in the field of radio astronomy. With the advent of astronomical instruments such as he Five-hundred-meter Aperture Spherical Telescope (FAST) in China, data volumes and…

Instrumentation and Methods for Astrophysics · Physics 2019-10-24 Ping Guo , Fuqing Duan , Pei Wang , Yao Yao , Qian Yin , Xin Xin

Artificial intelligence methods are indispensable to identifying pulsars from large amounts of candidates. We develop a new pulsar identification system that utilizes the CoAtNet to score two-dimensional features of candidates, uses a…

Instrumentation and Methods for Astrophysics · Physics 2023-04-25 NanNan Cai , JinLin Han , WeiCong Jing , ZeKai Zhang , DeJiang Zhou , Xue Chen

Polarimetric synthetic aperture radar (PolSAR) images are widely used in disaster detection and military reconnaissance and so on. However, their interpretation faces some challenges, e.g., deficiency of labeled data, inadequate utilization…

Image and Video Processing · Electrical Eng. & Systems 2019-06-11 Qigong Sun , Xiufang Li , Lingling Li , Xu Liu , Fang Liu , Licheng Jiao

Pulsar surveys generate millions of candidates per run, overwhelming manual inspection. This thesis builds a deep learning pipeline for radio pulsar candidate selection that fuses array-derived features with image diagnostics. From…

Instrumentation and Methods for Astrophysics · Physics 2025-10-31 Manideep Pendyala

In recent years, image classification, as a core task in computer vision, relies on high-quality labelled data, which restricts the wide application of deep learning models in practical scenarios. To alleviate the problem of insufficient…

Computer Vision and Pattern Recognition · Computer Science 2025-05-27 Jiyu Hu , Haijiang Zeng , Zhen Tian

Image recognition is an important topic in computer vision and image processing, and has been mainly addressed by supervised deep learning methods, which need a large set of labeled images to achieve promising performance. However, in most…

Computer Vision and Pattern Recognition · Computer Science 2019-08-13 Haoqian Wang , Zhiwei Xu , Jun Xu , Wangpeng An , Lei Zhang , Qionghai Dai

In this work, we investigate semi-supervised learning (SSL) for image classification using adversarial training. Previous results have illustrated that generative adversarial networks (GANs) can be used for multiple purposes. Triple-GAN,…

Machine Learning · Computer Science 2019-10-22 Wenyuan Li , Zichen Wang , Yuguang Yue , Jiayun Li , William Speier , Mingyuan Zhou , Corey W. Arnold

In recent years, Generative Adversarial Networks (GAN) have emerged as a powerful method for learning the mapping from noisy latent spaces to realistic data samples in high-dimensional space. So far, the development and application of GANs…

Machine Learning · Statistics 2018-01-30 Atanas Mirchev , Seyed-Ahmad Ahmadi

We present a novel self-supervised learning approach for conditional generative adversarial networks (GANs) under a semi-supervised setting. Unlike prior self-supervised approaches which often involve geometric augmentations on the image…

Computer Vision and Pattern Recognition · Computer Science 2020-10-12 Jiaze Sun , Binod Bhattarai , Tae-Kyun Kim

Pulsar search with time-domain observation is very computationally expensive and data volume will be enormous with the next generation telescopes such as the Square Kilometre Array. We apply artificial neural networks (ANNs), a machine…

Instrumentation and Methods for Astrophysics · Physics 2020-03-17 Naoyuki Yonemaru , Keitaro Takahashi , Hiroki Kumamoto , Shi Dai , Shintaro Yoshiura , Shinsuke Ideguchi

Lensed quasars are key to many areas of study in astronomy, offering a unique probe into the intermediate and far universe. However, finding lensed quasars has proved difficult despite significant efforts from large collaborations. These…

Medical anomaly detection is a critical research area aimed at recognizing abnormal images to aid in diagnosis.Most existing methods adopt synthetic anomalies and image restoration on normal samples to detect anomaly. The unlabeled data…

Image and Video Processing · Electrical Eng. & Systems 2024-05-22 Zerui Zhang , Zhichao Sun , Zelong Liu , Bo Du , Rui Yu , Zhou Zhao , Yongchao Xu

For most diseases, building large databases of labeled genetic data is an expensive and time-demanding task. To address this, we introduce genetic Generative Adversarial Networks (gGAN), a semi-supervised approach based on an innovative GAN…

Machine Learning · Computer Science 2020-07-03 Caio Davi , Ulisses Braga-Neto

As performance of dedicated facilities continually improved, massive pulsar candidates are being received, which makes selecting valuable pulsar signals from candidates challenging. In this paper, we designed a deep convolutional neural…

Instrumentation and Methods for Astrophysics · Physics 2019-09-25 Yuanchao Wang , Mingtao Li , Zhichen Pan , Jianhua Zheng

In recent years, applying deep learning (DL) to assess structural damages has gained growing popularity in vision-based structural health monitoring (SHM). However, both data deficiency and class-imbalance hinder the wide adoption of DL in…

Machine Learning · Computer Science 2022-11-30 Yuqing Gao , Pengyuan Zhai , Khalid M. Mosalam

The success of deep learning for medical imaging tasks, such as classification, is heavily reliant on the availability of large-scale datasets. However, acquiring datasets with large quantities of labeled data is challenging, as labeling is…

Image and Video Processing · Electrical Eng. & Systems 2021-09-29 Shafin Haque , Ayaan Haque

Despite having been discovered more than three decades ago, High Temperature Superconductors (HTSs) lack both an explanation for their mechanisms and a systematic way to search for them. To aid this search, this project proposes ScGAN, a…

Superconductivity · Physics 2023-10-13 Evan Kim , S. V. Dordevic

Semi-supervised learning methods using Generative Adversarial Networks (GANs) have shown promising empirical success recently. Most of these methods use a shared discriminator/classifier which discriminates real examples from fake while…

Machine Learning · Computer Science 2018-06-13 Abhishek Kumar , Prasanna Sattigeri , P. Thomas Fletcher

Pulsar candidate sifting is an essential process for discovering new pulsars. It aims to search for the most promising pulsar candidates from an all-sky survey, such as High Time Resolution Universe (HTRU), Green Bank Northern Celestial Cap…

Instrumentation and Methods for Astrophysics · Physics 2023-12-27 Haitao Lin , Xiangru Li , Qingguo Zeng

Weakly-supervised learning has become a popular technology in recent years. In this paper, we propose a novel medical image classification algorithm, called Weakly-Supervised Generative Adversarial Networks (WSGAN), which only uses a small…

Computer Vision and Pattern Recognition · Computer Science 2021-12-01 Jiawei Mao , Xuesong Yin , Yuanqi Chang , Qi Huang
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