Welcome and Introduction

• Andrea Chincarini
• Luigia Petre (Åbo Akademi University)

Controls in Advanced Virgo: from Lock Acquisition to Lock Losses

• Diego Bersanetti (INFN Genova)

The recording of Diego's talk is here: https://www.dropbox.com/s/y66q9qvmk0hf2c3/diego.mp4?dl=0 Relevant papers on the global controls of the Virgo experiment for the O2 and the O3 runs: - Guided Lock in Advanced Virgo: https://epjplus.epj.org/articles/epjplus/abs/2018/02/13360_2018_Article_11920/13360_2018_Article_11920.html - Virgo Longitudinal Controls in Virgo for O2: https://www.sciencedirect.com/science/article/abs/pii/S0927650519301835 - Interferometer Sensing and Control in Virgo for O3: https://www.mdpi.com/2075-4434/8/4/85 - Etalon Control in Virgo during O3: https://www.mdpi.com/2075-4434/8/4/80

ROUND TABLE: ML for Cavity locking?

• Diego Bersanetti (INFN Genova)

Surrogate Wiener filtering for the prediction and optimized cancellation of Newtonian noise at Virgo

• Francesca Badaracco

The recording of Francesca's presentation is here: https://www.dropbox.com/s/1zyw3uav046ozkd/francesca.mp4?dl=0 Advanced Virgo+ will enhance its sensitivity for the upcoming run, O4. This means that Newtonian noise might dominate in the low-frequency band. Fo this reason, it is critical working to reduce it as well. This will be achieved through active noise cancellation. It is of fundamental importance to understand how to optimally deploy an array of seismic sensors dedicated to active noise cancellation. This talk will present a new technique that allows us to use existent seismic data to construct a surrogate Wiener filter model bypassing all the difficulties related to the computational effort required by the task.

The experiment of the table top interferometer

• Rob Walet (Nikhef National Institute for Sub Atomic Physics)

The recording of Rob's presentation is here: https://www.dropbox.com/s/7t0pb0qfjrs6ytc/rob.mp4?dl=0

Non stationary noise removal from LIGO data

• Gabriele Vajente (LIGO Laboratory Caltech)

The recording of Gabriele's presentation is here: https://www.dropbox.com/s/d7p9naimzseui5n/gabriele.mp4?dl=0

ROUND TABLE: ML for Noise removal?

• Gabriele Vajente (LIGO Laboratory Caltech)

The recording of the roundtable discussion on ML for noise removal is here: https://www.dropbox.com/s/794fhk3ozpax6ra/GabrieleRoundtable.mp4?dl=0

Squeezed light benches and optical alignment issues

• Fiodor Sorrentino

The recording of Fiodor's presentation is here: https://www.dropbox.com/s/onk1zryn24s51us/fiodor.mp4?dl=0

ROUND TABLE: ML for Squeezed light benches?

• Fiodor Sorrentino

The recording of the roundtable on ML for squeezed light benches is here: https://www.dropbox.com/s/vzq1ngpy9zmkvm8/fiodor%20roundtable.mp4?dl=0

Glitch removal in ground-based gravitational-wave interferometric detectors

• Marco Cavaglia

The recording of Marco's presentation and roundtable discussion is here: https://www.dropbox.com/s/ude1e42h0nztpbl/MarcoTalkAndDiscussion.mp4?dl=0

ROUND TABLE: ML for Glitch removal?

• Marco Cavaglia

Closing remarks

• Luigia Petre (Åbo Akademi University)
• Andrea Chincarini

The recording of this short session is here: https://www.dropbox.com/s/4mzjd27bscn17qm/SchoolAndClosing.mp4?dl=0