Yutong Gou

PhD student · Nanyang Technological University

Yutong Gou

My research focuses on vector databases.

Google Scholar GitHub DBLP Research group
GitHub avatar of Yutong Gou

Research

About

I am a PhD student in the College of Computing and Data Science at Nanyang Technological University, advised by Prof. Cheng Long. I received my bachelor’s degree from Tsinghua University.

Research

Selected publications

  1. 2026

    Revisiting RaBitQ and TurboQuant: A Symmetric Comparison of Methods, Theory, and Experiments

    Jianyang Gao, Yutong Gou, Yuexuan Xu, Jifan Shi, Yongyi Yang, Shuolin Li, Raymond Chi-Wing Wong, Cheng Long

    Preprint

    Paper Code

  2. 2025

    SymphonyQG: Towards Symphonious Integration of Quantization and Graph for Approximate Nearest Neighbor Search

    Yutong Gou, Jianyang Gao, Yuexuan Xu, Cheng Long

    Proceedings of the ACM on Management of Data · SIGMOD 2025

    Paper Code

  3. 2025

    Practical and Asymptotically Optimal Quantization of High-Dimensional Vectors in Euclidean Space for Approximate Nearest Neighbor Search

    Jianyang Gao, Yutong Gou, Yuexuan Xu, Yongyi Yang, Cheng Long, Raymond Chi-Wing Wong

    Proceedings of the ACM on Management of Data · SIGMOD 2025

    Paper Code

  4. 2024

    iRangeGraph: Improvising Range-dedicated Graphs for Range-filtering Nearest Neighbor Search

    Yuexuan Xu, Jianyang Gao, Yutong Gou, Cheng Long, Christian S. Jensen

    Proceedings of the ACM on Management of Data · SIGMOD 2024

    Paper Code

  5. 2024

    High-Dimensional Vector Quantization: General Framework, Recent Advances, and Future Directions

    Jianyang Gao, Yutong Gou, Yuexuan Xu, Jifan Shi, Cheng Long, Raymond Chi-Wing Wong, Themis Palpanas

    IEEE Data Engineering Bulletin

    Details

Complete publication list

Projects

Open source

RaBitQ Library

Implementations of 1-bit and multi-bit RaBitQ, with IVF, HNSW, and SymphonyQG indexes.

C++17 · Python · AVX2 / AVX-512

SymphonyQG

A quantized graph index for approximate nearest-neighbor search. Its current implementation is included in RaBitQ Library.

C++ · Python · graph indexing