Name: How does ALS work? - Overview of matrix multiplication
Uploaded: 2026-06-16T00:00:00Z
Description: In this chapter you will review basic concepts of matrix multiplication and matrix factorization, and dive into how the Alternating Least Squares algorithm works and what arguments and hyperparameters it uses to return the best recommendations possible. You will also learn important techniques for properly preparing your data for ALS in Spark.