NDCG Is Not All You Need

Behavioral testing for recSys with RecList

Introduction

Recommender systems (RSs) are all around us, helping us navigate the paradox of choice of contemporary life: what is the next song I should be listening to? What is the next movie I should watch? Or, more subtly, what is the next piece of news I should consume?

RSs represent one of the most ubiquitous types of Machine Learning systems and all its power in personalizing the digital life of billions of people, …

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