Comparative Analysis of Machine Learning Models for Air Quality Index Prediction in Hyderabad and Delhi CitiesArun Kumar Katkoori, Nayani Sateesh, Sathya Prakash Racharla and V.D.S. KrishnaEPJ Web Conf., 379 (2026) 05004DOI: https://doi.org/10.1051/epjconf/202637905004