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An Optimized Unsupervised Feature Selection Algorithm | ||
پدافند الکترونیکی و سایبری | ||
Article 2, Volume 3, Issue 3, February 2020, Pages 1-7 PDF (824.28 K) | ||
Authors | ||
Hamid Reza Kakaei1; Mahdi Mollazadeh* 1; Babak Teymour Pour2 | ||
1Instructor, Imam Hossein University, Tehran, Iran | ||
2Assistant Professor, Tarbiat Modares University, Tehran, Iran | ||
Receive Date: 31 July 2013, Revise Date: 21 June 2023, Accept Date: 19 September 2018 | ||
Abstract | ||
Choosing a feature vector for maximizing the success of a classifier machine is very effective. In thispaper, using a combination of different methods to calculate the core function, an unsupervised feature selection algorithm improvement has been proposed. Feature vector obtained by the proposed algorithm, will maximizes output accuracy of backpropagation neural network classifier. In this paper we used case study of standard encoding of images compressed by alternate method and uncompressed images classifying based on their relative bit stream. Standards for classifications are JPEG and JPEG2000 and for uncompressed images is TIFF format. Using this feature vector obtained by the proposed algorithm, classifier accuracy will be about 98%. | ||
Keywords | ||
Feature Vector; Feature Vector Selection; Neural Network; Classification; Image Compressing Standard | ||
References | ||
[1] P. Suresh, R. M. D. Sundaram, and A. Arumugam, “Feature Extraction in Compressed Domain for Content Based Image Retrieval,” International Conference on Advanced Computer Theory and Engineering, Phuket, 2008. [2] N. Verma, S. S. Khan, and S. Kant, “Statistical Feature Extraction to Discriminate Various Languages: Plain and Crypt,” Scientific Analysis Group, 2003. [3] W. H. Vellerling, W. T. Teukolsky, and S. A. Flannery, “Numerical Recipes in C,” Second Edition, 1995. [4] G. Zhang, “Neural networks for classification: a survey,” IEEE Transactions on Systems, Man and Cybernetics, Part C: Applications and Reviews, vol. 30, no 4, pp. 451-462, 2000. [5] I. H. Witten and E. Frank, “Data Mining: Practical Machine Learning Tools and Techniques with Java Implementations,” Morgan Kaufmann Publishers, 2000. [6] H. Liu and Z. Zhao, “Spectral Feature Selection for Supervised and Unsupervised Learning,” Proceedings of the 24th International Conference on Machine Learning, 2007. | ||
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