To address the recipes in this chapter, you will need the following files (which are available on GitHub):
- function_composition.py
 - pipeline.py
 
- knn.py
 - nn_classification.py
 - nn_regression.py
 - euclidean_score.py
 - pearson_score.py
 - find_similar_users.py
 - movie_recommendations.py
 - LambdaMARTModel.py
 - train.txt
 - vali.txt
 - test.txt
 - TensorFilter.py