GSpyNetTree-O4: an event validation tool used in the fourth LIGO-Virgo-KAGRA observing run

arXiv:2607.25208 · gr-qc, astro-ph.HE, astro-ph.IM · Submitted 2026-07-28 · Read on arXiv

Sofia Alvarez-Lopez, Man Leong Chan, Franz S. Herbst, Dhatri Raghunathan, Airene Ahuja, Annudesh Liyanage, Julian Ding, Alejandro Garcia-Varela, Raymond Ng, Jess McIver

gr-qc, astro-ph.HE, astro-ph.IM

Submitted: 2026-07-28

Comments: 23 pages, 16 figures

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• AUC — 27× in this paper · explained in 2 episodes
• Robustness — 8× in this paper · explained in 5 episodes
• True Alarm Rate — 7× in this paper
• Data Quality Report — 5× in this paper
• Calibration — 4× in this paper · explained in 7 episodes
• Accuracy — 3× in this paper · explained in 1 episode
• LIGO-Virgo-KAGRA Collaboration — 3× in this paper
• Data Augmentation — 2× in this paper · explained in 7 episodes
• Transferability — 2× in this paper · explained in 4 episodes
• Activation Function — 1× in this paper · explained in 1 episode
• Adam — 1× in this paper · explained in 2 episodes
• Consistency — 1× in this paper · explained in 3 episodes
• Convolutional Neural Networks (CNNs) — 1× in this paper · explained in 2 episodes
• Core — 1× in this paper · explained in 2 episodes
• Interpretability — 1× in this paper · explained in 15 episodes
• LIGO Hanford Observatory — 1× in this paper
• LIGO Livingston Observatory — 1× in this paper
• Receiver Operating Characteristic — 1× in this paper
• Signal-to-noise ratio (SNR) — 1× in this paper · explained in 2 episodes

Sources

• GWTC-3: Compact Binary Coalescences Observed by LIGO and Virgo During the Second Part of the Third Observing Run
• A new method to distinguish gravitational-wave signals from detector noise transients with Gravity Spy
• LigoDV-web: Providing easy, secure and universal access to a large distributed scientific data store for the LIGO Scientific Collaboration
• Open data from the third observing run of LIGO, Virgo, KAGRA and GEO

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