[Univ of Cambridge] [Dept of Engineering]

Xunying Liu ΑυΡ­ΣΆ

Photo of Xunying Liu

I am an Associate Professor in with the Department of Systems Engineering and Engineering Management, Chinese University of Hong Kong since 2016. Before joining CUHK, I was previously a Senior Research Associate in the Speech Research Group of the Machine Intelligence Laboratory, Cambridge University Engineering Department.

  • Postdoctoral researcher positions, PhD positions and Research Assistantships currently available.
  • Prospective Students

      If you are interested in pursuing a PhD please CONTACT ME. You can find potential topical areas below. Full funding support for suitable PhD candiates are vailable from sources such as the Hong Kong PhD Fellowship, a prestigious award open every year for application. Students from outside Hong Kong and China are also encouraged to apply.

    Research Interests

    • Machine learning
    • Large vocabulary continuous speech recognition
    • Language modelling
    • Speech synthesis
    • Speech and language processing
    • Assitive technologies
    • Big data analytics

    Best Papers


    Some of my published or on-going research work may be found here, or on third party sites such as ResearchGate, DPLP, and less reliably in GoogleScholar.

    Research Grants

    • Hong Kong Research Grant Council Theme Based Research Scheme
    • Hong Kong Research Grant Council General Research Fund
    • Hong Kong Innovation and Technology Fund Innovation and Technology Support Programme
    • Hong Kong Jockey Club AI Academy Education Development Grant
    • Shun Hing Institute of Advanced Engineering
    • Microsoft Research Asia Collaborative Research Grant
    • The Chinese University of Hong Kong Direct Allocation Grant


    • SEEM4540: Open Systems for E-Commerce (UG: 2019)
    • SEEM5160: Advanced Data Science for Systems Engineering (PhD/MPhil: 2019)
    • ENGG1110: Problem Solving by Programming (Year 1 Undergraduate: 2016, 2017, 2018)
    • ENGG1410: Linear Algebra and Vector Calculus for Engineers (Year 1 Undergraduate: 2016, 2017, 2018)
    • SEEM5330: Speech and Language Processing (PhD/MPhil: 2017, 2018)

    Research Students

    • Guinan Li (PhD, from 2020)
    • Jiajun Deng (PhD, from 2020)
    • Zengrui Jin (PhD, from 2020)
    • Mingyu Cui (PhD, from 2021)
    • Shujie Hu (PhD, from 2021)
    • Tianzi Wang (PhD, from 2021)
    • Zhaoqing Li (PhD, from 2022)
    • Tao Zhong (PhD, from 2022)
    • Youjun Chen (PhD, from 2023)
    • Huimeng Wang (PhD, from 2023)
    • Haoning Xu (PhD, from 2023)
    • Mengzhe Geng (PhD, 2019-2023, now Postdoctoral Fellow at National Research Council of Canada)
    • Yi Wang (MPhil, 2021-2023, co-supervised with Prof. Helen Meng at Dpt. of SEEM CUHK, now PhD student at CSTR, University of Edinburgh)
    • Boyang Xue (RA and Research Student, 2020-2022)
    • Fabian Ritter Gutierrez (Research Student, 2020-2021, now PhD student at Nanyang Technological University)
    • Zi Ye (Research Student, 2019-2022)
    • Junhao Xu (PhD, 2018-2022, now at Moore Threads)
    • Shoukang Hu (PhD, 2017-2021, now Postdoc at Nanyang Technological University)
    • Shansong Liu (PhD, 2017-2021, now Senior Researcher at Tencent PCG ARC Lab)
    • Jianwei Yu (PhD, 2017-2021, now Senior Researcher at Tencent AI Lab)
    • Max Lam (MPhil, 2017-2019, now Senior Researcher at ByteDance, before that at Tencent AI Lab)
    • Xurong Xie (co-supervised PhD at Dpt. of EE CUHK 2015-2020 with Prof. Tan Lee, now Associate Professor at Institute of Software, Chinese Academy of Sciences)
    • Rongfeng Su (co-supervised PhD at CAS SIAT 2015-2020 with Prof. Lan Wang now Senior Engineer at Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences)
    • Xie Chen (co-supervised PhD at Dpt. of Engineering, Cambridge University, 2012-2017 with Prof. Mark Gales, now Associate Professor at Shanghai Jiao Tong University, before Senior Researcher at Microsoft Research)

    Visiting Students and Interns

    • Cathleen Law, Winnie Liu, Jinze Sha, Zhiyuan Xu (CUED UG Year 1, CUHK hosted Industrial Placement Jul-Sep 2017)
    • Hengfai Chang, Shahang Chen, Calvin Chow, Cindy Lam, Danyi Liu, Yi Wang (CUED UG Year 1 & 2, CUHK hosted Industrial Placement Jul-Sep 2018)

    FYP Students

    • Chamwing Sin, Wingpan So, Haufung Tang (2017)
    • Jiani Chen, Wingchung Lau, Kahei To (2018)


    • HTK Version 3.5 Now supports DNN based acoustic modelling and RNN based language model lattice rescoring.
    • CUED-RNNLM toolkit for efficient GPU parallel training of RNN based statistical language models.

    Completed Projects

    Contact Information

    Rm. 708, William M.W. Mong Engineering Building
    TEL: +852 3943 8318
    Chinese University of Hong Kong FAX: +852 2603 5505
    Shatin, N.T., Hong Kong Email xyliu@se.cuhk.edu.hk

    [Univ of Cambridge] [Dept of Engineering]