3 papers
astro-ph.EP2026
Active Learning for Planet Habitability Classification under Extreme Class Imbalance
R. I. El-Kholy, Z. M. Hayman
The increasing size and heterogeneity of exoplanet catalogs have made systematic habitability assessment challenging, particularly given the extreme scarcity of potentially habitab…
astro-ph.SR2025
NutMaat: A Python package for stellar spectral classification on the MK system
R. I. El-Kholy, Z. M. Hayman
Stellar spectral classification according to the Morgan-Keenan (MK) system remains fundamental to astrophysical studies, yet modern surveys require automated, scalable tools. We pr…
astro-ph.SR2025
Optimized sampling of SDSS-IV MaStar spectra for stellar classification using supervised models
R. I. El-Kholy, Z. M. Hayman
Supervised machine learning models are increasingly being used for solving the problem of stellar classification of spectroscopic data. However, training such models requires a lar…