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Selective Classification for Deep Neural Networks

Introduction

This is implementation of NIPS 2017 Paper Selective Classification For Deep Neural Networks as a part of NIPS Global Paper Implementation Challenge

Dependencies

  1. Python 3.6
  2. Keras
  3. Tensoflow

Files needed to evaluate

  • ImageNet validation dataset can be downloaded from here.
  • ILSVRC2012_validation_ground_truth.txt contains ground truth labels for ImageNet validation dataset.
  • imagenet-classes-dict.dat is a pickle dictionary, if you input a class you get a number from 1 to 1000 corresponding to the ground truth in the ILSVRC2012_validation_ground_truth.txt file.
  • The weights of the model trained as suggested in paper on CIFAR-10 and CIFAR-100 datasets can be downloaded from CIFAR-10 WEIGHTS(93.67% accuracy)and CIFAR-100 WEIGHTS(70.52% accuracy).

Evaluation

  • Evaluating on CIFAR-10 dataset.
python eval/cifar10_vgg16.py
  • Evaluating on CIFAR-100 dataset.
python eval/cifar100_vgg16.py
  • Evaluating on ImageNet validation dataset using VGG16 top1.
python eval/vgg16_top1.py
  • Evaluating on ImageNet validation dataset using VGG16 top5.
python eval/vgg16_top5.py
  • Evaluating on ImageNet validation dataset using ResNet50 top1.
python eval/resnet50_top1.py
  • Evaluating on ImageNet validation dataset using ResNet50 top5.
python eval/resnet50_top5.py

Experiment Results

  • On CIFAR-10 using VGG16.
Desired Risk Train Risk Train Coverage Test Risk Test Coverage Risk Bound
0.01 0.0039 0.7044 0.0046 0.6964 0.0093
0.02 0.0121 0.8410 0.0140 0.8376 0.0199
0.03 0.0207 0.8896 0.0226 0.8868 0.0299
0.04 0.0294 0.9198 0.0293 0.9200 0.0399
0.05 0.0382 0.9482 0.0388 0.9492 0.0498
0.06 0.0473 0.9688 0.0477 0.9728 0.0599
  • On CIFAR-100 dataset using VGG16.
Desired Risk Train Risk Train Coverage Test Risk Test Coverage Risk Bound
0.02 0.0031 0.1288 0.0074 0.1354 0.0185
0.05 0.0319 0.4012 0.0344 0.4016 0.0488
0.10 0.0792 0.5584 0.0821 0.5646 0.0099
0.15 0.1268 0.6642 0.1279 0.6734 0.0149
0.20 0.1756 0.7698 0.1746 0.7672 0.0199
0.25 0.2253 0.8692 0.2263 0.8704 0.2499
  • On ImageNet Validation dataset using VGG16 Top1.
Desired Risk Train Risk Train Coverage Test Risk Test Coverage Risk Bound
0.02 0.0118 0.1619 0.1011 0.1582 0.0198
0.05 0.0418 0.4084 0.0429 0.4052 0.0498
0.10 0.0904 0.5608 0.0926 0.5660 0.0999
0.15 0.1395 0.6741 0.1373 0.6762 0.1499
0.20 0.1891 0.7762 0.1855 0.7817 0.1999
0.25 0.2388 0.8736 0.2337 0.8770 0.2499
  • On ImageNet Validation dataset using VGG16 Top5.
Desired Risk Train Risk Train Coverage Test Risk Test Coverage Risk Bound
0.01 0.0055 0.2556 0.0071 0.2534 0.0099
0.02 0.0152 0.4798 0.0176 0.4823 0.0199
0.03 0.0247 0.5870 0.0254 0.5929 0.0299
0.04 0.0343 0.6763 0.0341 0.6785 0.0399
0.05 0.0440 0.7589 0.0414 0.7646 0.0499
0.06 0.0537 0.8148 0.0521 0.8196 0.0599
0.07 0.0634 0.8654 0.0622 0.8681 0.0699
  • On ImageNet Validation dataset using ResNet50 Top1.
Desired Risk Train Risk Train Coverage Test Risk Test Coverage Risk Bound
0.02 0.0122 0.1733 0.0114 0.1722 0.0199
0.05 0.0422 0.4461 0.0455 0.4425 0.0499
0.10 0.0908 0.6141 0.0903 0.6156 0.0999
0.15 0.1399 0.7336 0.1374 0.7328 0.1499
0.20 0.1895 0.8438 0.1901 0.8458 0.1999
0.25 0.2392 0.9381 0.2389 0.9386 0.2499
  • On ImageNet Validation dataset using ResNet50 Top5.
Desired Risk Train Risk Train Coverage Test Risk Test Coverage Risk Bound
0.01 0.0053 0.2398 0.0062 0.2374 0.0999
0.02 0.0153 0.4965 0.0156 0.4984 0.0199
0.03 0.0249 0.6306 0.0236 0.6324 0.0299
0.04 0.0346 0.7374 0.0321 0.7370 0.0399
0.05 0.0442 0.8138 0.0408 0.8153 0.0499
0.06 0.0539 0.8710 0.0501 0.8714 0.0599
0.07 0.0636 0.9205 0.0622 0.9223 0.0699

Notes on Experiments:

  • Achieved 60% test coverage guaranteed with 99.9% probability at 3% error rate top-5 ImageNet classification.