Data Science, Recommender Systems, Collaborative Filtering, Artificial Intelligence, Machine Learning.
therefore, it is also commonly used in dimensionality reduction. The below formula replace X with A, and S with Σ. Sum of Square Error (https://www.youtube.com/watch?v=E8aMcwmqsTg&list=PLLssT5z_DsK9JDLcT8T62VtzwyW9LNepV&index=55) But how does this has to do with RMSE that I mentioned at the