Learn in the textbookSearch Optimization, Effectiveness Measurement, and Delivery Technologies
DefinitionRecommendation (レコメンデーション) is a system that infers a user's tastes from their browsing history, purchase history and similar data, and suggests products or information likely to suit that person.
ExplanationBrowsing history records which pages someone viewed, and purchase history records what they bought. A video streaming service, for example, looks at the kinds of titles a person has watched so far and lines up the ones they are likely to watch next. Instead of showing everyone the same items, it changes the display for each person to lead to the next purchase or use.
AnalogyIt is like a clerk at your regular bookshop who remembers the books you bought and, each time you visit, picks out one new release that suits your taste.
Memory hookComes from the English verb recommend.