MF models: Notes
نویسنده
چکیده
1 Notation and Definitions 2 2 MF Models 2 3 Latent Factors 3 3.1 L2 regularization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3.2 Baseline Predictors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 SVD++ [4] 6 5 Joint Factorization (JF) Models 7 5.1 Brian’s Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5.2 Eliminating Ω from the second factorization . . . . . . . . . . . . . . . . . . 9 5.3 Local Collective Embeddings . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6 Tensor Decomposition 10 7 Non-linearity 10 8 General SVD Loss Gradient 11 9 TF-IDF 13
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