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Overcoming machine learning training data imbalance by simulating exoplanet transits

Gorchakova, Nika orcid logoORCID: 0009-0007-7271-4749 and Creaner, Oisin orcid logoORCID: 0000-0002-1080-0090 (2025) Overcoming machine learning training data imbalance by simulating exoplanet transits. Astronomical Society of the Pacific. Conference Proceedings . ISSN 1050-3390

We propose to use simulations of exoplanet transits to improve training outcomes for Machine Learning models. Machine learning has huge potential in exoplanet detection but faces challenges due to data imbalance and lack of ground truth in observational data. Most stars do not show transits, leading to datasets being skewed towards non-transit light curves, which can result in over-fitting and poor recall. Furthermore, the absence of ground truth complicates understanding the effects of noise and errors on detection outcomes. To address these issues, we simulate exoplanet transits using key astrophysical parameters and diverse noise profiles to create balanced training datasets. This simulation-based approach will improve machine learning models, enhancing their outcomes in detecting exoplanets in real-world data.
Item Type:Article (Published)
Refereed:Yes
Subjects:Computer Science > Artificial intelligence
Computer Science > Machine learning
Physical Sciences > Astronomy > Astrophysics
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Science and Health
DCU Faculties and Schools > Faculty of Science and Health > School of Physical Sciences
Publisher:ASP Conference Series
Official URL:https://astrosociety.org/news-publications/aspcs/
Copyright Information:Authors
Funders:Science Foundation Ireland through the SFI Centre for Research Training in Machine Learning (Grant No. 18/CRT/6183), National Open Research Forum (NORF) Open Research Fund 2023
ID Code:30752
Deposited On:19 Mar 2025 10:59 by Nika Gorchakova . Last Modified 19 Mar 2025 10:59

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