Experience

Amazon

May 2025 – present · Applied Scientist · Seattle

School of Information and Library Science, UNC Chapel Hill

Aug 2019 – May 2025 · Research Assistant · Chapel Hill

I worked with Prof. Yue Wang, Prof. Jaime Arguello and Prof. Rob Capra across multiple research projects on information retrieval, human-computer interaction and explainable AI.

Amazon

May 2023 – Aug 2023 · Applied Scientist Intern · Sunnyvale

I worked at the Local Information team in Alexa AI. I developed a LambdaMART learning-to-rank model to improve Alexa’s local business search in the Japanese market. The model has been launched in production, leading to a 4% increase in customer satisfaction within one week and impacting over 1 million queries annually.

Amazon

May 2022 – Aug 2022 · Applied Scientist Intern · Sunnyvale

I worked at the Local Information team in Alexa AI. I developed a BERT-based classification model to predict Alexa search query intentions, boosting Precision@1 by 14% and Recall@1 by 51%. The model has been deployed within the team's pipeline, providing predictions as features for downstream tasks.

University of North Carolina at Chapel Hill

Aug 2019 – May 2025 (exp.) · Ph.D. in Information Science

Dissertation: Explaining Unintuitive Feature Importance Explanations.

University of North Carolina at Chapel Hill

Aug 2017 – May 2019 · M.S. in Information Science

Thesis: A Medical Literature Search System for Identifying Effective Treatments in Precision Medicine
Award: Dean's Achievement Award for the best Master's Thesis (2 out of 95, first Chinese student recipient in the award history)

Nanjing Forestry University

Aug 2017 – May 2019 · B.S. in Information Management and Information System

Award: Outstanding Bachelor's Thesis (top 3%).