Yin Cui

Hi @bei-startdt Thanks for pointing this out! The implementation you mentioned is not very numerically stable (same for the implementation in https://github.com/tensorflow/tpu/blob/master/models/official/retinanet/retinanet_model.py#L130-L162). When gamma is small (< 1), there might...

Hi @Angzz , we haven't tried it on detection datasets.

Hi @shawnthu, in the formulation, we are using 1 for positive labels and 0 for negative labels.

The weight normalization is mentioned in the 3rd paragraph of "4. Class-Balanced Loss". The vanilla loss could be viewed as having weight of 1 for all classes. This simple normalization...

Hi @mathpopo, I just tried and it's working fine for me. Can you try this link (https://cornell.box.com/s/kr7r217g2ldxwk5icq3kg821p3pjmskm)?

Hi @muneeb699 , 1. I am using the feature on CUB-200 extracted from the model (Inception-V3 299) pre-trained on iNaturalist for kNN retrieval. 2. I trained the models, which can...

There is one model available: https://alpha.tfhub.dev/google/inaturalist/inception_v3/feature_vector/1 This is Inception v3 299 trained on the original splits. I plan to release larger models trained on our splits and an example to...

Hi @xmczh003 , I've updated the repo with code, models and examples.

Hi @gireek. Looks like some of the directories are not included in your system path. The root dir should be `tpu/models/official/detection/`. I haven't finished all the code release. TODOs are:...

@mitraavi Looks like you didn't update the config. The default config in `https://github.com/tensorflow/tpu/blob/master/models/official/detection/projects/fashionpedia/configs/model_config.py` uses resnet50-FPN, so the model is looking for FPN weights. SpineNet doesn't have FPN. Please pass the...