El-Sayed M. El-kenawy, Ahmed Mohamed Zaki, Ebrahim A. Mattar, Amel Ali Alhussan, Doaa Sami Khafaga, Marwa M. Eid, Mervat El-Seddek. "Smart room occupancy detection using neural networks and the puma optimization algorithm." Scientific Reports (2025). https://doi.org/10.1038/s41598-025-29938-8