Recommender Systems Complete Course Beginner to Advanced - Machine Learning for Recommender Systems: Collaborative Filte

The video tutorial explains the KNN algorithm, its uses, and its drawbacks. It demonstrates how to merge two data frames, 'ratings' and 'books', using pandas, focusing on the ISBN column. The tutorial then shows how to clean the data by dropping unnecessary columns and handling missing values. It further explains how to group data by book titles to calculate total rating counts and merge these counts back into the main data frame. Finally, it discusses analyzing the data using the describe function and filtering popular books based on rating counts.

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