19.2 3rd place solution

The 3rd place solution was quite interesting because it introduced a now widely used technique called “entity embedding” which is described in detail in the paper “Entity Embeddings of Categorical Variables” http://arxiv.org/abs/1604.06737. It uses an ensemble of 10 neural networks defined with Keras. The code can be found at https://github.com/entron/entity-embedding-rossmann

An interview with Kaggle team Neokami Inc. is presented at https://medium.com/kaggle-blog/rossmann-store-sales-winners-interview-3rd-place-neokami-inc-ed67c7a2c3ca