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 the model 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.
PC Member and Reviewer:
WSDM 2026, SIGIR 2025, SIGIR 2024, CHI 2024, WWW 2023, ICTIR 2023, the Neurocomputing journal.
Volunteer:
WWW 2023, CHIIR 2023.
University of North Carolina at Chapel Hill
Aug 2019 - May 2025 (exp.), Ph.D. in Information Science
Dissertation: Explaining Unintuitive Feature Importane Explanations. (coming soon)
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%)