Latent-Factor-Model

Python implementation of Recommender-System algorithm Latent Factor Model (LFM) based on SGD and Book dataset.

Dataset

Extract data from goodreads_reviews_young_adult_train.7z, goodreads_reviews_young_adult_test.7z, goodreads_reviews_young_adult_val.7z. Original data is from here.

Implement the regularized latent factor model without bias using SGD

• Compare different latent factors' amount k.

Implement the regularized latent factor model with bias using SGD

• Compare different latent factors' amount k.