Conference paper

VRÁBELOVÁ Pavla, BAŘINA David, ŠKODA Petr, VÁŽNÝ Jaroslav and ZENDULKA Jaroslav. Classification of Spectra of Emission-line Stars Using Feature Extraction Based on Wavelet Transform. In: Proceedings of 23rd Annual Astronomical Data Analysis Software and Systems (ADASS) Conference. San Francisco: Astronomical Society of the Pacific, 2013, pp. 177-180. ISBN 978-1-58381-854-1. Available from: http://www.aspbooks.org/publications/485/177.pdf
Publication language:english
Original title:Classification of Spectra of Emission-line Stars Using Feature Extraction Based on Wavelet Transform
Title (cs):Klasifikace spekter emisních čar hvězd použitím extrakce příznaků založené na vlnkové transformaci
Pages:177-180
Proceedings:Proceedings of 23rd Annual Astronomical Data Analysis Software and Systems (ADASS) Conference
Conference:Astronomical Data Analysis Software and Systems
Place:San Francisco, US
Year:2013
URL:http://www.aspbooks.org/publications/485/177.pdf
ISBN:978-1-58381-854-1
Publisher:Astronomical Society of the Pacific
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Keywords
discrete wavelet transform, DWT, stationary wavelet transform, SWT, support vector machines, SVM
Annotation
The paper deals with classification of Be star spectra using discrete wavelet transform (DWT), stationary wavelet transform (SWT) and support vector machines (SVM).
Abstract
Our goal is to automatically identify Be and B[e] stars spectra in large archives and classify their types. Due to the length of spectra, the dimension reduction is required. As the Be stars show a number of different shapes of emission lines, it is not easy to construct simple criteria to identify the emission lines. We propose to perform the wavelet transform and apply statistical metrics on the wavelet coefficients. The results show that using proposed method we can reduce the number of attributes and the processing time to a small fraction, and moreover increase the accuracy.
BibTeX:
@INPROCEEDINGS{
   author = {Pavla Vr{\'{a}}belov{\'{a}} and David Ba{\v{r}}ina and Petr
	{\v{S}}koda and Jaroslav V{\'{a}}{\v{z}}n{\'{y}} and
	Jaroslav Zendulka},
   title = {Classification of Spectra of Emission-line Stars Using
	Feature Extraction Based on Wavelet Transform},
   pages = {177--180},
   booktitle = {Proceedings of 23rd Annual Astronomical Data Analysis
	Software and Systems (ADASS) Conference},
   year = {2013},
   location = {San Francisco, US},
   publisher = {Astronomical Society of the Pacific},
   ISBN = {978-1-58381-854-1},
   language = {english},
   url = {http://www.fit.vutbr.cz/research/view_pub.php?id=10412}
}

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