MetaR-CNN icon indicating copy to clipboard operation
MetaR-CNN copied to clipboard

I found un-fair data usage

Open mandal4 opened this issue 4 years ago • 4 comments

Hi there. I well read uploaded source code. I found you set k-shot masked sample with k-'image' not 'instance'. It might be okay that there is binary mask for input of PRN. But the same k-'image' is fed into fasterRCNN in 2nd phase. So for FasterRCNN, it could be k+1 shot or k+2 shot and so on because you set k-shot with image-wise. Unfortunately i think it is un-fair setting for few-shot learning. Could you explain about it? I hope i misunderstood your nice work.

mandal4 avatar Jan 20 '20 01:01 mandal4

Hello, we have filtered the images with k-shot instance. Please see the function https://github.com/yanxp/MetaR-CNN/blob/0e54c48505a0fd472eec3885d1ea2a80852cf681/lib/roi_data_layer/roidb.py#L61

yanxp avatar Jan 20 '20 02:01 yanxp

Thanks for reply. I confused that. But still i couldn't understand it is same for input of PRN

mandal4 avatar Jan 20 '20 05:01 mandal4

I have the same concern with you and I have create an issue on the top. Maybe you can check that. I think I express the same idea with you.

Ze-Yang avatar Feb 14 '20 04:02 Ze-Yang

Hi there. I well read uploaded source code. I found you set k-shot masked sample with k-'image' not 'instance'. It might be okay that there is binary mask for input of PRN. But the same k-'image' is fed into fasterRCNN in 2nd phase. So for FasterRCNN, it could be k+1 shot or k+2 shot and so on because you set k-shot with image-wise. Unfortunately i think it is un-fair setting for few-shot learning. Could you explain about it? I hope i misunderstood your nice work.

I also find weird modeling. After the reweighted feature, it also produce num_classes+1 prediction. So what's the contribution of feature reweighting?

Ze-Yang avatar Feb 14 '20 04:02 Ze-Yang