Machine Learning Engineer
Participated in optimization of the recommendation system on China's largest e-commerce platform, primarily focusing on optimizing deep learning algorithms for recall, ranking. Conducted large-scale multi-GPU training on billion-scale data.Implemented ranking improvements. Integrated various cutting-edge deep learning models including DIN, SENet, MMOE, and PLE, while conducting feature selection and dynamic adjustments based on relevance and personalization.Enhanced recall stage, added a new video recall pathway using SwingI2I., improving relevance and consistency between content and product recommendation.Achieved a 2.56% AUC improvement through ranking model upgrades. After two months of continuous testing, average three-second retention stability increased by 3.62%, achieving full deployment online.