Achieved Accuracy of 83.30%, placed to 2nd rank.
Using Xception Model, loading pre-trained Imagenet weights and fine-tuning to achieve better validation accuracy.
10% of the data used for validation, rounding up to 90,000 train images, and 10,000 validation images.
data/ 
   train/
      class1/
      class2/
      
   validation/
      class1/
      class2/
pip3 install -r requirements.txt (Python 3.5.2)