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13 Recommender Systems - Basic Concepts You work on a recommender system for an e-commerce platform for electronic articles with roughly 200 million users and 70 million items. Based on this information you need to decide which recommender method you want to use. Decide for each statement whether it is True or False. 1.Op a An item-based neighborhood approach would result in more accurate recommendations. True False 1. Op b An item-based method would result in more unexpected recommendations compared to a user-based method. True False 1.0p A content-based method would result in more unexpected recommendations. True False 1.Op d A user-based neighborhood approach would result in more accurate recommendations. True False 1.Op A user-based method would result in more unexpected recommendations. True False