What is a recommendation engine? How does it work?

What is a recommendation engine? How does it work?



Answer: Recommendation engines basically are data filtering tools that make use of algorithms and data to recommend the most relevant items to a particular user. Or in simple terms, they are nothing but an automated form of a "shop counter guy". You ask him for a product. Not only he shows that product, but also the related ones which you could buy. There are three main types:

- Collaborative Filtering
- Content-Based Filtering
- Hybrid Recommendation Systems

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