Why Table 1 shows inconsistent CLIP performances with those in the CoCoOp paper? about prompt-align

[BeierZhu]

1. Please read the CoCoOp carefully. CoCoOp uses ViT as the backbone, while CoOp uses ResNet. To make fair comparison with CoOp and CoCoOp, we select ResNet for all experiment setting.

2. 16 shots is strictly not few-shot setting (conventional few-shot uses 1 or 5), thus we choose 4.

[BeierZhu]

Dear Ma Chengcheng

If you are interested in this work. We can add a WeChat friend for further discussion. My account is: Thu_E_E

Best wishes.

[BeierZhu]

Another difference I forget to mention is that in CoCoOp paper, all experiments are run only for 10 epochs due the training inefficiency of CoCoOp. But according to my training log, 10 epochs is insufficient for model convergence which makes unfair comparison between difference models. Thus I adopt CoOp setting to the base-to-new experiments, ie, 50 epochs for 1 shot, 100 epochs for 2 and 4 shots, 200 epochs for 8 and 16 shots.

[machengcheng2016]

Much appreciated~