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MovieLens: Filtering on Others' Reactions
Lichtendahl, Kenneth C. Jr.; Boatright, Benjamin; Holtz, PaulCase DARDEN-QA-0927-EDecision AnalysisThis case introduces students to relational databases and the basics of collaborative filtering, a popular recommendation system technique. The case points to a dataset shared by GroupLens, a research group developing algorithms that supply movie recommendations through a website called MovieLens. SQL queries provided in the case propose a collaborative filtering strategy for generating simple recommendations with a small degree of personalizatio...Starting at €8.20