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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

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

The Commensal Radio Astronomy Five-hundred-meter Aperture Spherical radio Telescope (FAST) Survey (CRAFTS) utilizes the novel drift-scan commensal survey mode of FAST and can generate billions of pulsar candidate signals. The human experts…

Instrumentation and Methods for Astrophysics · Physics 2019-03-18 Hongfeng Wang , Weiwei Zhu , Ping Guo , Di Li , Sibo Feng , Qian Yin , Chenchen Miao , Zhenzhao Tao , Zhichen Pan , Pei Wang , Xin Zheng , Xiaodan Deng Zhijie Liu , Xiaoyao Xie , Xuhong Yu , Shanping You , Hui Zhang

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

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

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

In this work, six convolutional neural networks (CNNs) have been trained based on %different feature images and arrays from the database including 15,638 superflare candidates on solar-type stars, which are collected from the three-years…

Solar and Stellar Astrophysics · Physics 2022-09-19 Zuo-Lin Tu , Qin Wu , Wenbo Wang , G. Q. Zhang , Zi-Ke Liu , F. Y. Wang

Porting state of the art deep learning algorithms to resource constrained compute platforms (e.g. VR, AR, wearables) is extremely challenging. We propose a fast, compact, and accurate model for convolutional neural networks that enables…

Computer Vision and Pattern Recognition · Computer Science 2017-06-14 Hessam Bagherinezhad , Mohammad Rastegari , Ali Farhadi

In pulsar astronomy, detecting effective pulsar signals among numerous pulsar candidates is an important research topic. Starting from space X-ray pulsar signals, the two-dimensional autocorrelation profile map (2D-APM) feature modelling…

Instrumentation and Methods for Astrophysics · Physics 2021-09-08 Longqi Wang , Jing Jin , Lu Liu , Yi Shen

This paper presents a comprehensive evaluation of the potential of Quantum Convolutional Neural Networks (QCNNs) in comparison to classical Convolutional Neural Networks (CNNs) and Artificial / Classical Neural Network (ANN) models. With…

Quantum Physics · Physics 2023-07-25 Gowri Namratha Meedinti , Kandukuri Sai Srirekha , Radhakrishnan Delhibabu

The observation of the transient sky through a multitude of astrophysical messengers hasled to several scientific breakthroughs these last two decades thanks to the fast evolution ofthe observational techniques and strategies employed by…

Instrumentation and Methods for Astrophysics · Physics 2020-07-22 Damien Turpin , M. Ganet , S. Antier , E. Bertin , L. P. Xin , N. Leroy , C. Wu , Y. Xu , X. H. Han , H. B. Cai , H. L. Li , X. M. Lu , J. Y. Wei

Convolutional Neural Network (CNN) is a popular model in computer vision and has the advantage of making good use of the correlation information of data. However, CNN is challenging to learn efficiently if the given dimension of data or…

Quantum Physics · Physics 2020-09-22 Seunghyeok Oh , Jaeho Choi , Joongheon Kim

Convolutional Neural Networks (CNNs) can provide accurate object classification. They can be extended to perform object detection by iterating over dense or selected proposed object regions. However, the runtime of such detectors scales as…

Computer Vision and Pattern Recognition · Computer Science 2014-04-08 Forrest Iandola , Matt Moskewicz , Sergey Karayev , Ross Girshick , Trevor Darrell , Kurt Keutzer

Vetting of exoplanet candidates in transit surveys is a manual process, which suffers from a large number of false positives and a lack of consistency. Previous work has shown that Convolutional Neural Networks (CNN) provide an efficient…

The ability to accurately detect and classify objects at varying pixel sizes in cluttered scenes is crucial to many Navy applications. However, detection performance of existing state-of the-art approaches such as convolutional neural…

Computer Vision and Pattern Recognition · Computer Science 2017-08-28 JT Turner , Kalyan Moy Gupta , David Aha

Galaxy clusters appear as extended sources in XMM-Newton images, but not all extended sources are clusters. So, their proper classification requires visual inspection with optical images, which is a slow process with biases that are almost…

The Convolution Neural Network (CNN) has demonstrated the unique advantage in audio, image and text learning; recently it has also challenged Recurrent Neural Networks (RNNs) with long short-term memory cells (LSTM) in sequence-to-sequence…

Computation and Language · Computer Science 2017-12-29 Qiming Chen , Ren Wu

Context. Convolutional neural networks (CNNs) have been established as the go-to method for fast object detection and classification on natural images. This opens the door for astrophysical parameter inference on the exponentially…

Astrophysics of Galaxies · Physics 2020-01-29 J. Bialopetravičius , D. Narbutis

Context. Convolutional neural networks (CNNs) have been proven to perform fast classification and detection on natural images and have potential to infer astrophysical parameters on the exponentially increasing amount of sky survey imaging…

Astrophysics of Galaxies · Physics 2019-01-16 J. Bialopetravičius , D. Narbutis , V. Vansevičius
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