tldr - powered by Generative AI

• Pinterest's AI system consists of several machine learning models trained to optimize objectives such as predicting the likelihood that a pin would be relevant to a Pinner given a variety of inputs.
• The AI system takes input from queries, user features, content features, and past interactions with pins and boards.
• Developing inclusive AI requires an end-to-end iterative and collaborative development approach.
• Reducing bias is important to move away from historical patterns of bias in society, prevent harm, put users first, and improve technical craftsmanship.
• Pinterest built skin tone ranges and hair pattern search to give control to users on their experience in search and AR try on similar looks recommendation module.
• The closed box version of the skin tone range system had issues with performance and coverage in darker skin tone ranges.
• The bias in face detection technology was studied and documented by Joybulam Winnie and Tim need Gabriel in the gender shade study.
• Pinterest developed an in-house version of the skin tone range system with several computer vision components and a fairness aware tuning phase.