Pretext accuracy of RotNet with AlexNet on ImageNet?

[jasonwei20]

What is the rotation prediction accuracy of RotNet using AlexNet trained on ImageNet

[jasonwei20]

Also, does better rotation prediction accuracy correlate with better accuracy on the downstream task? In Figure 5(a) in the paper, the downstream accuracy did not improve after 40 epochs, although the rotation accuracy did improve.

[gidariss]

Hi Jason,

The rotation prediction accuracy of a AlexNet-based RotNet on the validation set of ImageNet is around 89.0%.

Regarding the correlation question, in general (and I believe this is a common observation among all self-supervised methods) training for longer on the pretext task (which usually leads to improved accuracy on the pretext task) leads to improved accuracy on the downstream task.