Publication Details

Classification of Spectra of Emission-line Stars Using Feature Extraction Based on Wavelet Transform

VRÁBELOVÁ, P.; BAŘINA, D.; ŠKODA, P.; VÁŽNÝ, J.; ZENDULKA, J. 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. p. 177-180. ISBN: 978-1-58381-854-1.
Czech title
Klasifikace spekter emisních čar hvězd použitím extrakce příznaků založené na vlnkové transformaci
Type
conference paper
Language
English
Authors
Vrábelová Pavla, Ing.
Bařina David, Ing., Ph.D. (DCGM)
Škoda Petr, RNDr., Ph.D.
Vážný Jaroslav
Zendulka Jaroslav, doc. Ing., CSc. (UIFS)
URL
Keywords

discrete wavelet transform, DWT, stationary wavelet transform, SWT, support vector machines, SVM

Abstract

The paper deals with classification of Be star spectra using discrete wavelet transform (DWT), stationary wavelet transform (SWT) and support vector machines (SVM).

Annotation
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.
Published
2013
Pages
177–180
Proceedings
Proceedings of 23rd Annual Astronomical Data Analysis Software and Systems (ADASS) Conference
ISBN
978-1-58381-854-1
Publisher
Astronomical Society of the Pacific
Place
San Francisco
UT WoS
000376047600040
BibTeX 
@inproceedings{BUT103542,
  author="Pavla {Vrábelová} and David {Bařina} and Petr {Škoda} and Jaroslav {Vážný} and Jaroslav {Zendulka}",
  title="Classification of Spectra of Emission-line Stars Using Feature Extraction Based on Wavelet Transform",
  booktitle="Proceedings of 23rd Annual Astronomical Data Analysis Software and Systems (ADASS) Conference",
  year="2013",
  pages="177--180",
  publisher="Astronomical Society of the Pacific",
  address="San Francisco",
  isbn="978-1-58381-854-1",
  url="http://www.aspbooks.org/publications/485/177.pdf"
}
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