Pytorch Generative ChatBot (Dialog System) based on RNN, Transformer, Bert and GPT2 NLP Deep Learning 1. ChatBot (Dialog System) based on RNN 2. ChatBot (Dialog System) based on Transformer and Bert 3. ChatBot (Dialog System) based on Bert and GPT2 Reference [1] https://github.com/bentrevett/pytorch-seq2seq [2] https://pytorch.org/tutorials/ [3] https://github.com/huggingface/transformers PS: The format of dataset is two columns of chat sentences from two people.