Torch code for Domain Adaptation model(CD3A) . For more information, please refer the paper

Accepted at [BMVC 2019]

Domain adaptation is essential to enable wide usage of deep learning based networks trained using large labeled datasets. Adversarial learning based techniques have shown their utility towards solving this problem using a discriminator that ensures source and target distributions are close. However, here we suggest that rather than using a point estimate, it would be useful if a distribution based discriminator could be used to bridge this gap. This could be achieved using multiple classifiers or using traditional ensemble methods. In contrast, we suggest that a Monte Carlo dropout based ensemble discriminator could suffice to obtain the distribution based discriminator. Specifically, we propose a curriculum based dropout discriminator that gradually increases the variance of the sample based distribution and the corresponding reverse gradients are used to align the source and target feature representations. The detailed results and thorough ablation analysis show that our model outperforms state-of-the-art results.

This code is written in Lua and requires Torch.

You also need to install the following package in order to sucessfully run the code.

• Torch
• loadcaffe

• Office -31
• ImageClef
• Office-Home

• Download the dataset

We have prepared everything for you ;)

####Clone the repositotry

git clone https://github.com/DelTA-Lab-IITK/CD3A

• Downalod dataset

• put all source images inside mydataset/train/ such that folder name is class name

  mkdir -p /path_to_wherever_you_want/mydataset/train/ 

• put all target images inside mydataset/val/ such that folder name is class name

mkdir -p /path_to_wherever_you_want/mydataset/val/ 

• creare softlink of dataset

 cd CD3A/
 ln -sf /path_to_wherever_you_want/mydataset dataset

• Download Alexnet pretraine caffe model Link

cd CD3A/  

ln -sf /path_to_where_model_is_downloaded/ pretrained_network 

cd CD3A/  
./train.sh 

If you use this code as part of any published research, please acknowledge the following paper

@article{kurmi2019curriculum,
  title={Curriculum based Dropout Discriminator for Domain Adaptation},
  author={Kurmi, Vinod Kumar and Bajaj, Vipul and Subramanian, Venkatesh K and Namboodiri, Vinay P},
  journal={arXiv preprint arXiv:1907.10628},
  year={2019}
}

• Vinod K. Kurmi ([email protected])
• Vipul Bajaj ([email protected])