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Title: Sub-Classification of Blip Glitches Using Q-Transforms and Convolutional Neural Networks with GravitySpy
Transient noise, called "glitches," can mimic and obscure real gravitational waves in the strain data channel. One machine learning software package used to classify these glitches and identify their sources, GravitySpy, is successful when the spectrogram of the glitch has a very distinct and unique shape. However, one of the most common types of glitches, called a "blip," has an indistinct shape due to so few cycles being in-band, and tends to ring off template signals of binary black hole mergers, making it especially necessary to eliminate blips for future observing runs. Here we examine blip glitches in a Q-transform spectrogram with different parameters than those used by GravitySpy to determine if there are sub-classifications of blips that might have identifiable sources, and then use Convolutional Neural Networks to sub-classify these blips. The implementation of Convolutional Neural Networks has provided compelling evidence of distinguishable differences between these hypothesized sub-classes.  more » « less
Award ID(s):
1757303
PAR ID:
10089820
Author(s) / Creator(s):
;
Date Published:
Journal Name:
LIGO Laboratory Summer 2018 Undergraduate Research
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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