Pytorch implementation of Behaviour Sequence transformer for user sequence prediction as outlined in: Behavior Sequence Transformer for E-commerce Recommendation in Alibaba.

• Implemented as a seq-to-seq prediction problem instead of CTR prediction problem as outlined in the original paper.

1. Original Paper - Qiwei Chen, Huan Zhao, Wei Li, Pipei Huang, and Wenwu Ou. 2019. Behavior sequence transformer for e-commerce recommendation in Alibaba. https://arxiv.org/pdf/1905.06874.pdf

2. https://github.com/DannyMerkx/next_word_prediction

1. Performance on MovieLens Dataset.
2. Reduce training speed.