Build generative models

[POskar]

Build a generative model based on Variational Autoencoder.

[POskar]

Implemented GAIN model from Yoon, J., Jordon, J., & van der Schaar, M. (2018). GAIN: Missing Data Imputation using Generative Adversarial Nets (arXiv:1806.02920). arXiv. https://doi.org/10.48550/arXiv.1806.02920 Need to tweak with it since loss function is not looking optimal as of now.

Will finish implementing VAEAC ASAP (from Yoon, J., Jordon, J., & van der Schaar, M. (2018). GAIN: Missing Data Imputation using Generative Adversarial Nets (arXiv:1806.02920). arXiv. https://doi.org/10.48550/arXiv.1806.02920)