SGD-PMF

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SGD for Probabilistic Matrix Factorization(PMF)

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# SGD-PMF
The SGD for Probabilistic Matrix Factorization(PMF) in Python

Detailed explanation and derivation process please see:https://zhuanlan.zhihu.com/p/34422451

Created by Xiuze Zhou

E-mail: zhouxiuze@foxmail.com

Permission is granted for anyone to copy, use, modify, or  distribute this program and accompanying programs and documents  for any purpose, provided this copyright notice is retained and  prominently displayed, along with a note saying that the original  programs are available from our web page.

The programs and documents are distributed without any warranty,  express or implied. As the programs were written for research  purposes only, they have not been tested to the degree that would  be advisable in any important application. All use of these programs is entirely at the user's own risk.

How to make it work:

1. Create a separate directory and download all these files into the same directory
   2. Download the following 2 files: 
       1) SGD_PMF.py: Main file for training PMF
       2) u.data: MovieLens 100k data set
   3. Run SGD_PMF.py

I did not try to optimize this code, but please e-mail me if you find bugs.

I am also very glad to communicate with you by e-mail about your problems.

SGD-PMF

SGD-PMF Latest Version Download

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