TGS-SaltNet

Kaggle | 21st place solution for TGS Salt Identification Challenge

General

I recently participated in a Kaggle competition TGS Salt Identification Challenge and reached the 21st place. This repository contains the final code which resulted in the best model. The code demonstrates usage of different important techniques using fast.ai and PyTorch.

1. Use ResNet model as an encoder for UNet.
2. Add intermediate layers like BAM,Squeeze & Excitation blocks in a ResNet34 model which can be easily replicated for other network architectures.
3. Show how to add Deep supervision to the network, and calculate loss and combine loss at different scale.

Main software used

1. fastai - 0.7
2. pytorch - 0.4
3. python - 3.6

Hardware required

The code was tested with TitanX GPU/1080ti.

Thanks

A special thanks to Heng for his generous contributions to different ideas in the competition, for a long list of amazing Kaglle community members, Jeremy and Fast.ai community for the amazing and flexible fastai framework.