AUTHOR=Bhattacharjee Vidyasagar , Roy Provas Kumar , Tejani Ghanshyam G. , Mousavirad Seyed Jalaleddin TITLE=Oppositional chaotic artificial hummingbird algorithm on engineering design optimization JOURNAL=Frontiers in Mechanical Engineering VOLUME=Volume 11 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/mechanical-engineering/articles/10.3389/fmech.2025.1547819 DOI=10.3389/fmech.2025.1547819 ISSN=2297-3079