Hammad, Amin, and Ali Ghelmani. “Self-Supervised Learning Approach for Excavator Activity Recognition Using Contrastive Video Representation”. In Proceedings of the 29th EG-ICE International Workshop on Intelligent Computing in Engineering, edited by Jochen Teizer and Carl Schultz, 350–358. Proceedings. Aarhus, DK: Aarhus Universitet, 2022. Accessed November 16, 2025. https://openbooks.kb.dk/au/catalog/book/455/chapter/225.