AUTHOR=O’Mara B. , Mahmud M. S. TITLE=Addressing grading bias in rock climbing: machine and deep learning approaches JOURNAL=Frontiers in Sports and Active Living VOLUME=6 YEAR=2025 URL=https://www.frontiersin.org/journals/sports-and-active-living/articles/10.3389/fspor.2024.1512010 DOI=10.3389/fspor.2024.1512010 ISSN=2624-9367