Xuan Chen — CV / Resume

Xuan Chen

I am proactively seeking admission to Ph.D. programs starting in Fall 2026.

📝 Biography

I am a graduate research assistant at Duke focusing on database systems and query optimization. I work with Prof. Jun Yang on robust query optimizers and with Prof. Xiaowei Yang on ML systems for content moderation in networked environments.

🔬 Research Interests

• Query Optimization • Vector Databases (For RAG) • Data Center Networks

🎓 Education

Duke University • M.S. in Computer Science • Aug 2024 – Present

Central University of Finance and Economics • B.S. in Data Science • Sep 2020 – Jun 2024

💎 Publication

🔶 One-Pass Robust Query Optimization via Structure-Aware Subplan Reuse — In Preparation

Authors: Haibo Xiu, Xuan Chen, Jun Yang

Target Venue: 2025 ACM SIGMOD International Conference on Management of Data

🔶 Delta-Aug: Cross-Modal Hard Feature Mining for Few-Shot Learning

Authors: Xuan Chen • Open Access (ACM DL)

2024 6th Asia Conference on Machine Learning and Computing • Bangkok, Thailand

📚 Research Projects

🔶 Robust Query Optimization in Database Systems

Advisor: Prof. Jun Yang, Duke University

Developed robust query optimization methods in PostgreSQL.

🔶 Mini-Amazon: A Database-Centric E-Commerce System

Advisor: Prof. Jun Yang, Duke University

Built a full-stack e-commerce system with PostgreSQL and pgvector.

🔶 Content Moderation in Web and Networked Systems

Advisor: Prof. Xiaowei Yang, Duke University

Designed an LLM/VLM-as-a-judge pipeline for content moderation.

🔶 Cross-Modal Hard Feature Mining for Few-Shot Learning

Central University of Finance and Economics

Proposed DeltaAug, a CLIP-based method for few-shot learning.

🔶 Research on Computer Networking: MQTT Protocol

Advisor: Prof. Fu Chen, Central University of Finance and Economics

Studied MQTT protocol focusing on QoS, reliability, and large-scale implementation.