What Does ALS Stand For?

ALS stands for Alternating Least Squares

Alternating Least Squares (ALS) is a mathematical optimization technique widely used in machine learning and statistics for collaborative filtering and matrix factorization tasks. The method operates by iteratively optimizing the variables in a least squares framework, alternating between fixing one set of variables while solving for the others, thereby effectively handling large-scale data sets. ALS is particularly known for its efficiency in recommendation systems, enabling the prediction of user preferences based on past interactions.

Other Meanings for ALS