The "vin" prefix typically refers to the Playing Violin action category.
If you are looking for the architectures that made these videos famous in AI research, you should also look at: vin8.mp4
UCF101: A Dataset of 101 Human Action Classes From Videos in the Wild The "vin" prefix typically refers to the Playing
(Simonyan & Zisserman, 2014) – This paper introduced the concept of using both spatial (RGB) and temporal (optical flow) streams. vin8.mp4