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Algorithms from Recommender Systems by Aggarwal
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README.md

Recommender Systems - Aggarwal

Notes

All these implementations are to help me learn the algorithms - they don't form any kind of library or tutorial. Just putting them in the public domain in case they're useful to anyone else also studying from this book.

Chapter 2: Neighborhood-Based Collaborative Filtering

Run neighborhood-pearson-cosine.py

python neighborhood-pearson-cosine.py

This calculates the missing item 1 for user 3 from table 2.1 in the book. It can also be used to solve exercises 1 and 2 if you change the matrix and the item requested in main().

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