中文
相关论文

相关论文: On the Use of Logistic Regression for stellar clas…

200 篇论文

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

With the advent of digital astronomy, new benefits and new problems have been presented to the modern day astronomer. While data can be captured in a more efficient and accurate manor using digital means, the efficiency of data retrieval…

天体物理仪器与方法 · 物理学 2020-01-03 Kyle B Johnston , Hakeem M Oluseyi

Revealing hidden patterns in astronomical data is often the path to fundamental scientific breakthroughs; meanwhile the complexity of scientific inquiry increases as more subtle relationships are sought. Contemporary data analysis problems…

天体物理仪器与方法 · 物理学 2015-05-26 R. S. de Souza , E. Cameron , M. Killedar , J. Hilbe , R. Vilalta , U. Maio , V. Biffi , B. Ciardi , J. D. Riggs

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…

星系天体物理 · 物理学 2018-12-26 Yu Bai , JiFeng Liu , Song Wang , Fan Yang

This project outlines the complete development of a variable star classification algorithm methodology. With the advent of Big-Data in astronomy, professional astronomers are left with the problem of how to manage large amounts of data, and…

天体物理仪器与方法 · 物理学 2020-09-01 Kyle Burton Johnston

Machine learning techniques offer a plethora of opportunities in tackling big data within the astronomical community. We present the set of Generalized Linear Models as a fast alternative for determining photometric redshifts of galaxies, a…

天体物理仪器与方法 · 物理学 2016-06-29 J. Elliott , R. S. de Souza , A. Krone-Martins , E. Cameron , E. E. O. Ishida , J. Hilbe

Current and future large astronomical surveys will yield multiparameter databases on millions or even billions of objects. The scientific exploitation of these will require powerful, robust, and automated classification tools tailored to…

天体物理学 · 物理学 2007-05-23 C. A. L. Bailer-Jones

Machine learning techniques have been successfully used to classify variable stars on widely-studied astronomical surveys. These datasets have been available to astronomers long enough, thus allowing them to perform deep analysis over…

天体物理仪器与方法 · 物理学 2018-01-31 Patricio Benavente , Pavlos Protopapas , Karim Pichara

Direct imaging of exoplanets requires to separate the background noise from the exoplanet signals. Statistical methods have been recently proposed to avoid subtracting any signal of interest as opposed to initial self-subtracting methods…

地球与行星天体物理 · 物理学 2024-12-02 Hadrien Cambazard , Nicolas Catusse , A. Chomez , A. -M. Lagrange

During the last ten years, a considerable amount of effort has been made to develop algorithms for automatic classification of variable stars. That has been primarily achieved by applying machine learning methods to photometric datasets…

天体物理仪器与方法 · 物理学 2018-01-31 Lucas Valenzuela , Karim Pichara

With the availability of multi-object spectrometers and the designing \& running of some large scale sky surveys, we are obtaining massive spectra. Therefore, it becomes more and more important to deal with the massive spectral data…

天体物理仪器与方法 · 物理学 2023-12-27 Xiangru Li , Yangtao Lin , Kaibin Qiu

With the coming data deluge from synoptic surveys, there is a growing need for frameworks that can quickly and automatically produce calibrated classification probabilities for newly-observed variables based on a small number of time-series…

This review outlines concepts of mathematical statistics, elements of probability theory, hypothesis tests and point estimation for use in the analysis of modern astronomical data. Least squares, maximum likelihood, and Bayesian approaches…

天体物理仪器与方法 · 物理学 2012-05-10 Eric D. Feigelson , G. Jogesh Babu

Machine learning has achieved an important role in the automatic classification of variable stars, and several classifiers have been proposed over the last decade. These classifiers have achieved impressive performance in several…

天体物理仪器与方法 · 物理学 2021-05-26 F. Pérez-Galarce , K. Pichara , P. Huijse , M. Catelan , D. Mery

Machine learning techniques offer a precious tool box for use within astronomy to solve problems involving so-called big data. They provide a means to make accurate predictions about a particular system without prior knowledge of the…

天体物理仪器与方法 · 物理学 2019-01-01 J. Elliott , R. S. de Souza , A. Krone-Martins , E. Cameron , E. E. O. Ishida , J. Hilbe

The exponential growth of astronomical data from large-scale surveys has created both opportunities and challenges for the astrophysics community. This paper explores the possibilities offered by transfer learning techniques in addressing…

Machine Learning algorithms are good tools for both classification and prediction purposes. These algorithms can further be used for scientific discoveries from the enormous data being collected in our era. We present ways of discovering…

天体物理仪器与方法 · 物理学 2021-02-26 Shraddha Surana , Yogesh Wadadekar , Divya Oberoi

Automatic classification methods applied to sky surveys have revolutionized the astronomical target selection process. Most surveys generate a vast amount of time series, or \quotes{lightcurves}, that represent the brightness variability of…

天体物理仪器与方法 · 物理学 2018-01-31 Nicolas Castro , Pavlos Protopapas , Karim Pichara

Due to the ever-expanding volume of observed spectroscopic data from surveys such as SDSS and LAMOST, it has become important to apply artificial intelligence (AI) techniques for analysing stellar spectra to solve spectral classification…

太阳与恒星天体物理 · 物理学 2020-01-08 Kaushal Sharma , Ajit Kembhavi , Aniruddha Kembhavi , T. Sivarani , Sheelu Abraham , Kaustubh Vaghmare

Most existing star-galaxy classifiers use the reduced summary information from catalogs, requiring careful feature extraction and selection. The latest advances in machine learning that use deep convolutional neural networks allow a machine…

天体物理仪器与方法 · 物理学 2016-10-20 Edward J. Kim , Robert J. Brunner
‹ 上一页 1 2 3 10 下一页 ›