Wild Wild Tests: Monitoring Recommender Systems in the Wild

apply(conf) - May '22 - 10 minutes

As with most Machine Learning systems, recommender systems are typically evaluated through performance metrics computed over held-out data points. However, real-world behavior is undoubtedly nuanced, and case-specific tests must be employed to ensure the desired quality. We introduce RecList, a behavioral-based testing methodology and open source package for RecSys, designed to scale up testing through sensible defaults, extensible abstractions and wrappers for popular datasets.

Jacopo Tagliabue

Director of AI


Educated in several acronyms across the globe (UNISR, SFI, MIT), Jacopo Tagliabue was co-founder of Tooso, an A.I. company acquired by Coveo in 2019. Jacopo is currently the Director of A.I. at Coveo, shipping models to hundreds of customers and millions of users. When not busy building products, he teaches MLSys at NYU and explores topics at the intersection of language, reasoning and learning (with research work presented at NAACL, RecSys, ACL, SIGIR). In previous lives, he managed to get a Ph.D., do sciency things for a pro basketball team, and simulate a pre-Columbian civilization.

Federico Bianchi

Postdoctoral Researcher

Bocconi University