AUTHOR=Venancio Ranan , Filipe Vitor , Cerveira Adelaide , Gonçalves Lio TITLE=Advanced driving assistance integration in electric motorcycles: road surface classification with a focus on gravel detection using deep learning JOURNAL=Frontiers in Artificial Intelligence VOLUME=8 YEAR=2025 URL=https://www.frontiersin.org/journals/artificial-intelligence/articles/10.3389/frai.2025.1520557 DOI=10.3389/frai.2025.1520557 ISSN=2624-8212