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SOEN 471 UU 2254, SOEN 6111 UU (Winter 2026)
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Which metric is most appropriate for evaluating rating prediction accuracy rather than ranking quality?
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Why does item-based collaborative filtering generally scale better than user-based filtering?
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Which scenario best demonstrates a limitation of content-based recommender systems?
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Which combination of characteristics best describes personalized recommender systems?
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What is the primary purpose of matrix factorization in recommender systems?
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Why are editorial recommendations poorly suited for large-scale personalization?
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Which assumption underlies the formal utility function u: X × S → R?
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Which situation most clearly illustrates implicit feedback?
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Why do recommender systems become more important in environments with abundant choices?
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In a highly sparse utility matrix, which problem becomes most severe?
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