Classification of galaxies from image features using best parameter selection by horse herd optimization algorithm (HOA)

IF 1.9 4区 物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS Astronomy and Computing Pub Date : 2024-11-19 DOI:10.1016/j.ascom.2024.100898
Ahmadreza Yeganehmehr, Hossein Ebrahimnezhad
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引用次数: 0

Abstract

With the advancement of observation technology, visual data has made significant progress, rendering manual image classification less effective. Consequently, various image processing and automatic classification methods have garnered attention from researchers. Scientists estimate that there are approximately 2 trillion observable galaxies in the universe. Each galaxy possesses unique characteristics that are distinguishable. Therefore, finding a method to quickly and accurately identify these characteristics of each galaxy and classify them rapidly can greatly enhance the galaxy detection and classification process, while minimizing human errors. The objective of the present study is to determine the class of galaxies with from telescope image features using an optimized classifier with best parameters. The proposed method uses the HOA algorithm, based on the behavior of horse herds, to find the best parameters. This method evaluates the model's error with different SVM parameters and selects the optimal SVM parameters for constructing M-SVM. Using this method, the proposed algorithm is trained and ultimately applied to classify the test data. The results indicate that the developed model correctly classified up to 94.11% of the test dataset (1) and 90.74% of the test dataset (2).
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利用马群优化算法(HOA)的最佳参数选择,从图像特征对星系进行分类
随着观测技术的发展,视觉数据取得了长足的进步,人工图像分类的效果大打折扣。因此,各种图像处理和自动分类方法受到了研究人员的关注。科学家估计,宇宙中大约有 2 万亿个可观测星系。每个星系都具有可区分的独特特征。因此,找到一种方法来快速、准确地识别每个星系的这些特征,并对它们进行快速分类,可以大大提高星系探测和分类过程的效率,同时最大限度地减少人为误差。本研究的目的是利用最佳参数的优化分类器,根据望远镜图像特征确定星系类别。所提出的方法采用基于马群行为的 HOA 算法来寻找最佳参数。该方法评估了不同 SVM 参数下模型的误差,并选择最佳 SVM 参数来构建 M-SVM。利用这种方法,对提出的算法进行训练,并最终应用于测试数据的分类。结果表明,所开发的模型对测试数据集(1)的正确分类率高达 94.11%,对测试数据集(2)的正确分类率高达 90.74%。
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来源期刊
Astronomy and Computing
Astronomy and Computing ASTRONOMY & ASTROPHYSICSCOMPUTER SCIENCE,-COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS
CiteScore
4.10
自引率
8.00%
发文量
67
期刊介绍: Astronomy and Computing is a peer-reviewed journal that focuses on the broad area between astronomy, computer science and information technology. The journal aims to publish the work of scientists and (software) engineers in all aspects of astronomical computing, including the collection, analysis, reduction, visualisation, preservation and dissemination of data, and the development of astronomical software and simulations. The journal covers applications for academic computer science techniques to astronomy, as well as novel applications of information technologies within astronomy.
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