recommendation system
A system that selects for each user a relatively small set of desirable items from a large corpus.
Plain English Explanation
A system that selects for each user a relatively small set of desirable items from a large corpus. For example, a video recommendation system might recommend two videos from a corpus of 100,000 videos, selecting Casablanca and The Philadelphia Story for one user, and Wonder Woman and Black Panther for another. A video recommendation system might base its recommendations on factors such as: - Movies that similar users have rated or watched. - Genre, directors, actors, target demographic... See the Recommendation Systems course for more information.
How is it used?
Practitioners refer to recommendation system when building, training, or evaluating machine learning systems. It appears in research papers, product documentation, and technical discussions about AI capabilities and limitations.