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Donglai Chen is a seasoned Machine Learning Engineer at Linklogis since November 2020, specializing in NER, text classification, and document intelligence projects, with notable achievements in competitive challenges. Previously, as a Data Scientist at Sam's Club, Donglai Chen focused on exploring data for fraud detection and enhancing XGBoost models. Experience includes significant roles at Purdue University, where Donglai Chen conducted research as a Research Assistant and served as a Statistical Consultant, and a Data Scientist internship at Oriental Trading Company. Donglai Chen holds a PhD in Statistics from Purdue University and a BS in Statistics from Peking University.