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Collaborative vs Content-Based Filtering

Understand the core recommendation algorithms: when to use collaborative filtering, content-based methods, or hybrid approaches.

What is the difference between collaborative filtering and content-based recommendation?

Collaborative filtering recommends items based on user behavior patterns — if similar users liked item X, you might too. Content-based filtering recommends items similar to what you've liked, based on item attributes. Collaborative filtering excels at serendipitous discovery but suffers from cold start; content-based works immediately but can create filter bubbles.

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Collaborative vs Content-Based Filtering

What is the difference between collaborative filtering and content-based recommendation?

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