Item-Based Similarity: "Customers Who Bought X"
This lesson is part of the course
In this lesson
You build the "customers who bought Salt & Ember also bought …" box from purchase data, and see why cosine beats a raw co-purchase share.
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Lessons in this course
- The User–Item Ratings Matrix Locked
- Cosine Similarity Between Users Locked
- User-Based Collaborative Filtering Locked
- Item-Based Similarity: "Customers Who Bought X" Locked
- Popularity Baseline & Evaluation with MAE Locked
- Bag of Words: Counting Words with Formulas Locked
- TF-IDF: Which Words Really Matter Locked
- Sentiment Scoring with a Word Lexicon Locked