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Hongmei Liu is a seasoned data science leader with extensive experience in managing high-performing teams and driving strategic initiatives across various sectors. Currently serving as the Head of Consumer Data Science at Rakuten, Hongmei focuses on optimizing marketing strategies through advanced analytics. Prior roles include Principal Data and Applied Science Manager at Microsoft, where Hongmei expanded team capabilities to develop AI products, and Machine Learning Science Lead at Expedia Group, specializing in fraud detection for e-commerce. Additional experience encompasses data science roles at Amazon, Wells Fargo, and Discover Financial Services, where Hongmei contributed to credit card marketing strategies, risk analysis, and project management. Hongmei holds a Master's degree in Statistics from the University of Illinois Chicago and a Bachelor's degree in Engineering from Tongji University.