Is there any weak baseline in modelzoo?

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I am trying to verify availability of my idea, but when I train the model base on the modelzoo R50-C4.pkl, the performance are not improved. then I try to train base on the ImageNet Pretained Model R-50.pkl: converted copy of MSRA's original ResNet-50 model. , the C2 weights are remapping to the model, is this remapping normal? Any help would be appreciated.