Machine learning aided noise filtration and signal classification for CREDO experiment

@inproceedings{66681,
   author = {Bibrzycki, Łukasz and Bar, Olaf and Piekarczyk, Marcin and Niedźwiecki, Michał and Rzecki, Krzysztof and Stuglik, Sławomir and Homola, Piotr and AlvarezandCastillo, David and Gora, Dariusz and Kovács, Péter and Stasielak, Jaroslaw and Sushchov, Oleksandr and Tursunov, Arman},
   address = {Itálie},
   booktitle = {Proceedings of Science},
   doi = {http://dx.doi.org/10.22323/1.395.0227},
   keywords = {CREDO;Cosmology;Daubechies wavelet transformed images;Luminance;Cosmic rays},
   howpublished = {elektronická verze "online"},
   language = {eng},
   location = {Itálie},
   pages = {"227-1"-"227-9"},
   publisher = {Sissa Medialab Srl},
   title = {Machine learning aided noise filtration and signal classification for CREDO experiment},
   url = {https://pos.sissa.it/395/227},
   year = {2022}
}

TY  - JOUR
ID  - 66681
AU  - Bibrzycki, Łukasz - Bar, Olaf - Piekarczyk, Marcin - Niedźwiecki, Michał - Rzecki, Krzysztof - Stuglik, Sławomir - Homola, Piotr - Alvarez-Castillo, David - Gora, Dariusz - Kovács, Péter - Stasielak, Jaroslaw - Sushchov, Oleksandr - Tursunov, Arman
PY  - 2022
TI  - Machine learning aided noise filtration and signal classification for CREDO experiment
PB  - Sissa Medialab Srl
CY  - Itálie
KW  - CREDO;Cosmology;Daubechies wavelet transformed images;Luminance;Cosmic rays
UR  - https://pos.sissa.it/395/227
N2  - The wealth of smartphone data collected by the Cosmic Ray Extremely Distributed Observatory (CREDO) greatly surpasses the capabilities of manual analysis. So, efficient means of rejecting the non-cosmic-ray noise and identification of signals attributable to extensive air showers are necessary. To address these problems we discuss a Convolutional Neural Network-based method of artefact rejection and complementary method of particle identification based on common statistical classifiers as well as their ensemble extensions. These approaches are based on supervised learning, so we need to provide a representative subset of the CREDO dataset for training and validation. According to this approach over 2300 images were chosen and manually labeled by 5 judges. The images were split into spot, track, worm (collectively named signals) and artefact classes. Then the preprocessing consisting of luminance summation of RGB channels (grayscaling) and background removal by adaptive thresholding was performed. For purposes of artefact rejection the binary CNN-based classifier was proposed which is able to distinguish between artefacts and signals. The classifier was fed with input data in the form of Daubechies wavelet transformed images. In the case of cosmic ray signal classification, the well-known feature-based classifiers were considered. As feature descriptors, we used Zernike moments with additional feature related to total image luminance. For the problem of artefact rejection, we obtained an accuracy of 99%. For the 4-class signal classification, the best performing classifiers achieved a recognition rate of 88%.
ER  - 

BIBRZYCKI, Łukasz, Olaf BAR, Marcin PIEKARCZYK, Michał NIED$\backslash$'ZWIECKI, Krzysztof RZECKI, Sławomir STUGLIK, Piotr HOMOLA, David ALVAREZ-CASTILLO, Dariusz GORA, Péter KOVÁCS, Jaroslaw STASIELAK, Oleksandr SUSHCHOV a Arman TURSUNOV. Machine learning aided noise filtration and signal classification for CREDO experiment. Online. In \textit{Proceedings of Science}. Itálie: Sissa Medialab Srl, 2022, s.~''227-1''-''227-9'', 9 s. ISSN~1824-8039. Dostupné z: https://dx.doi.org/10.22323/1.395.0227.