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3 cards from this section. Quick, good the night before a test.
What is a recommendation system?
Think about websites that suggest what to buy based on your previous choices.
Define user profile.
Remember what information is stored for personalized suggestions.
What does a recommendation system do?
Think about how platforms like Amazon or Netflix suggest items.
True or False: An inversion means that two users have the same ranking.
Recall what an inversion signifies in rankings.
Design a simple algorithm that uses inversion counting to recommend products to a new user based on a small set of user profiles.
Consider how to implement the comparison efficiently.
Critique the effectiveness of using inversions as the only metric for recommendations. Are there situations where this method might fail?
Think about how other factors could impact a user's decision.
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