warning icon QCon London 2021 has been canceled. See our current virtual and in-person events.
You are viewing content from a past/completed QCon -

Presentation: Applying AI/ML for Trusted Commerce Connections @Facebook Marketplace

Track: Modern CS in the Real World

Location: Windsor, 5th flr.

Duration: 5:25pm - 6:15pm

Day of week: Monday


Facebook Marketplace is aimed at making buying and selling seamless for people locally within their communities and open up economic opportunity through social commerce. Given that Trust is a key driver of consumer decisions in Commerce, it is important for Facebook to build trust amongst buyers and sellers and on the platform. This talk will explore how we apply Machine Learning techniques to detect and take down bad/policy violating content and behavior as well as promote good content/behavior to build a trustworthy online marketplace. You will get to hear examples of adversarial behavior such as Scam, Spam, Harassment etc and how we apply ML towards solving these problems to keep people safe.

Speaker: Liza Fireman

Engineering Manager @Facebook Marketplace Trust & Safety

Liza is an Engineering Manager of the Marketplace Integrity and Payment Risks teams. She has more than 20 years of engineering experience building backend, ML and user-facing products. Prior to Facebook, she spent 6 years in engineering management roles at Google, including leading the innovative ML software of Google Clips, and before that taking part in the leadership of Google Drive and Gmail. She holds an M.Sc in Computer Science from the Technion, Israel.

Find Liza Fireman at

Last Year's Tracks