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YingYing Li is an accomplished data science manager currently overseeing various Reddit Ads products, including Ads Manager and Ads Review, while driving cross-functional initiatives to enhance advertiser productivity and growth. Previously, at Facebook, YingYing led product, marketing, and sales analytics, generating $6 billion in annual incremental revenue from small businesses and managing teams of data scientists. Prior experience includes roles at Expedia Group, Trip.com Group, and Marriott International, where YingYing focused on analytics strategies, performance improvements, and operational projects, culminating in significant revenue gains and sales growth. YingYing Li holds a Master of Science in Statistics from Rutgers University, a Media Marketing Research Certificate from New York University, and a Bachelor of Science in Statistics from Sun Yat-sen University.