Recommendation System, Recommender Systems, Machine Learning, Data Science, Big Data.
i we have rᵤᵢ = 0 instead of rᵤᵢ =“?” . Second, we weight each loss term by the confidence cᵤᵢ that u likes i. Loss function for SVD for implicit feedback. Finally, the SVD++ algorithm can be used when we have access to both explicit and implicit feedbacks. This can be very useful, because