姓名：孙佶

职称：助理研究员

邮箱：sunji@tsinghua.edu.cn

教育背景

工学博士（计算机科学与技术），清华大学，中国，2016.09-2021.06

工学学士（计算机科学与技术），北京邮电大学，中国，2012.09-2016.06

访问学者：CSAIL, MIT，美国，2017.12-2018.06

研究领域

智能数据库与数据分析，Data+AI

荣誉奖励

中国计算机学会优秀博士论文奖, 2021

ACM Sigmod Programming Contest Finalists, 2020

学术成果

[1] Song Yu, Shengyuan Lin, Shufeng Gong, Yongqing Xie, Ruicheng Liu, Yijie Zhou, Ji Sun, Yanfeng Zhang, Guoliang Li, Ge Yu. A topology-aware localized update strategy for graph-based ann index. PVLDB 2026

[2] Yuchen Peng, Dingyu Yang, Zhongle Xie, Ji Sun, Lidan Shou, Ke Chen, Gang Chen. SVFusion: A CPU-GPU Co-Processing Architecture for Large-Scale Real-Time Vector Search. PVLDB 2026

[3] Ji Sun, Guoliang Li, Peiyao Zhou, Yihui Ma, Jingzhe Xu, Yuan Li. AgenticData: An Agentic Data Analytics System for Heterogeneous Data. arXiv:2508.05002, 2025

[4] Ji Sun,Guoliang Li, James Pan, Jiang Wang, Yongqing Xie,Ruicheng Liu, Wen Nie. GaussDB-Vector: A Large-Scale Persistent Real-Time Vector Database for LLM Applications. PVLDB 2025.

[5] Hongya Wang, Wenlong Wu, Cong Luo, Aobei Bian, Chunguang Meng, Yishuo Wu, Ji Sun. Boosting Accuracy and Efficiency for Vector Retrieval with Local Scaling Graph. ICDE 2025.

[6] Guoliang Li, Ji Sun, Lijie Xu, Shifu Li, Jiang Wang, Wen Nie. Gaussml: An end-to-end in-database machine learning system. ICDE 2024.

[7] Yue Han, Guoliang Li, Haitao Yuan, Ji Sun. AutoView:An Autonomous Materialized View Management System With Encoder-Reducer. TKDE 2022.

[8] Ji Sun, Jintao Zhang, Zhaoyan Sun, Guoliang Li, Nan Tang. Learned cardinality estimation: A design space exploration and a comparative evaluation. PVLDB 2021.

[9] Ji Sun, Guoliang Li, Nan Tang. Learned Cardinality Estimation for Similarity Queries. SIGMOD Conference 2021.

[10] Guoliang Li, Xuanhe Zhou, Ji Sun, Xiang Yu, Yue Han, Lianyuan Jin, Wenbo Li, Tianqing Wang, Shifu Li. opengauss: An autonomous database system.

PVLDB 2021.

[11] Xuanhe Zhou, Lianyuan Jin, Ji Sun, Xinyang Zhao, Xiang Yu, Shifu Li, Tianqing Wang, Kun Li, Luyang Liu. DBMind: A Self-Driving Platform in openGauss. PVLDB 2021.

[12] Yue Han, Guoliang Li, Haitao Yuan, Ji Sun. An autonomous materialized view management system with deep reinforcement learning. ICDE 2021.

[13] Haitao Yuan, Guoliang Li, Ling Feng, Ji Sun, Yue Han. Automatic View Generation with Deep Learning and Reinforcement Learning ICDE 2020.

[14] Xuanhe Zhou, Ji Sun, Guoliang Li, Jianhua Feng. Query performance prediction for concurrent queries using graph embedding. PVLDB 2020.

[15] Ji Sun, Guoliang Li. An End-to-End Learning-based Cost Estimator. PVLDB 2020.

[16] Xuanhe Zhou, Chengliang Chai, Guoliang Li, Ji Sun. Database meets artificial intelligence: A survey. TKDE 2020.