Xiang Ma is a Staff Machine Learning Engineer at Apple AIML, focusing on improving retrieval, ranking, and summarization models for Retrieval-Augmented Generation systems. Previously, they were a Staff Software Engineer at Google, where they led a team to develop personalized deep retrieval and ranking models for YouTube Search and worked on LLM architecture. Xiang began their career in research and development at Tsinghua University, and has held positions at MicroStrategy, Yahoo, and as a Research Assistant at Columbia University. They earned a Bachelor's degree in Information Technology from Beijing University of Posts and Telecommunications and a Master's degree in Computer Science from Columbia University.
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