ALS_implementation

Implementation of ALS algorithm from "Collaborative Filtering for Implicit Feedback Data" [paper]

Contents

• als.ipynb : notebook which contains step by step comments and visulization.
• als.py : simplified python implementation

Parameters to fix

• r_lambda = 40
• nf = 200
• alpha = 40

Train Result

More detail

• als.ipynb contains details of each algorithm steps.
• more information can be found in my blog posting. (in Korean) [blog]