AI is one of the most powerful technologies developed to date. Not only does it transform how businesses operate, but also enhances the services and products offered to customers to increase their relevancy and resulting customer retention.

Our study of 187 participants found that information about the sustainability of a product, in the form of a sustainability score, can have a significant impact on consumers’ buying behaviour. This research project sought to examine the potential effectiveness of providing consumers with a product-level sustainability score during their buying journey.

Recommender systems continue to evolve as new methods and algorithms are discovered, and more data is available, both in terms of volume and variety. In this paper we present an overview of the history of recommender systems, starting from precursors of recommendation engines, all the way to modern deep learning systems.