Hi. I'm Sijie Ji.

I am currently working with Prof. Chenshu Wu in the Department of Computer Science at The University of Hong Kong. I obtained my Ph.D. from the School of Computer Science and Engineering at Nanyang Technological University, under the guidance of Prof. Mo Li.

I'm broadly interested in sensing, deep learning, edge computing, and next-generation AIoT systems. If you are interested in these areas, feel free to reach out for a discussion or collaboration!

In addition, if you are a student from underrepresented groups or in need, you can fill out this form. I'm more than willing to chat about research, grad school, or anything else to offer assistance to the best of my ability.

News

  • [04/24] Honored to join Schmidt Science Fellows 2024 cohort!
  • [04/24] MuSAC is accepted by ICDCS'24.
  • [04/24] Humbled to be selected for CPS Rising Stars 2024!
  • [03/24] Check out our new findings on the capability of LLMs for reasoning raw sensor data: Human Activity Recognition and Trajectory Recognition based on IMU data.
  • [02/24] Invited to serve as co-chair for Ph.D. Forum, BuildSys'24, and serve as an AEC member for Mobicom'24.
  • [12/23] BG-BERT is accepted by ICASSP'24, codes.
  • [10/23] I have been selected for the N2Women Young Researcher Fellowship and will organize the N2Women event at SenSys'23.
  • [10/23] HandFi is accepted by SenSys'23 and has been filed as a patent.
  • [09/23] Join HKU! Hit me up when you are in HK.
  • [09/23] I am honored to be listed in the Singapore 100 Women in Tech.
  • [08/23] Give invited talks at Zhejiang University and Zhejiang Lab.
  • [07/23] Spend a wonderful month at ShanghaiTech University.
  • [06/23] Sucessfully defend my Ph.D. thesis.
  • [01/23] JPTS is accepted by ICC'23.
  • [12/22] Give invited Student Lecture Series Talk: SiFall. Video Avaliable.
  • [10/22] SiFall is accepted by SenSys'22.
  • [01/22] Give invited Student Lecture Series Talk: CLNet. Video Avaliable.
  • [10/21] Clinch the 1st runner-up in the Masked Face Recognition Challenge, ICCV 2021.
  • [07/21] CLNet is accepted by IEEE Wireless Communications Letters.
  • [06/20] Clinch the 2nd runner-up in the AI Meets Beauty Challenge, ACM MM 2020.
  • [05/20] Clinch the 2nd runner-up in the EmotioNet Challenge, CVPR 2020.


    • On the way......

    Selected Publications

    * denotes either a co-first author or a corresponding author. / ^ denotes students I mentored.
    Image 1 SenSys

    Construct 3D Hand Skeleton with Commercial WiFi

    Sijie Ji, Xuanye Zhang^, Yuanqing Zheng, Mo Li
    The 21th ACM Conference on Embedded Networked Sensor Systems (SenSys), 2023.
    PDF Code Project Page BibTex
    Image 1 SenSys

    SiFall: Practical Online Fall Detection with RF Sensing

    Sijie Ji, Yaxiong Xie, Mo Li
    The 20th ACM Conference on Embedded Networked Sensor Systems (SenSys), 2022.
    PDF Slides Video BibTex
    Image 1 WCL

    CLNet: Complex Input Lightweight Neural Network Designed for Massive MIMO CSI Feedback

    Sijie Ji, Mo Li
    IEEE Wireless Communications Letters, 2021.
    PDF Code Video BibTex

    • [ICASSP 2024] Predicting Adverse Events for Patients with Type-1 Diabetes via Self-supervised Learning.
      　  Xinzhe Zheng, Sijie Ji, Chenshu Wu
    • [ICC 2023] JPTS: Enhancing Deep Learning Performance of Massive MIMO CSI Feedback
      　  Sijie Ji, Mo Li
    • [CVPRW 2020] Multiple Transfer Learning and Multi-Label Balanced Training Strategies for Facial AU Detection in the Wild
      　  Sijie Ji, Kai Wang, Xiaojiang Peng, Jianfei Yang, Zhaoyang Zeng, Yu Qiao
    • [MM 2020] Attention-driven Unsupervised Image Retrieval for Beauty Products with Visual and Textual Clues
      　  Jingwen Hou, Sijie Ji*, Annan Wang^
    • [ICCVW 2021] Improving Representation Consistency with Pairwise Loss for Masked Face Recognition
      　  Hanjie Qian, Panpan Zhang, Sijie Ji, Shuxin Cao, Yuecong Xu
    • [IET Radar 2023] (excellent paper award) Joint Location Design and Resource Allocation for Integrated Sensing and Semantic Communication
      　  Yuanhao Cui, Weijie Yuan, Sijie Ji*, Hongming Zhang, Fan Liu, Zhaohui Yang, Zhouyi Wu
    • [DSP 2024] Robust Target Detection of Intelligent Integrated Optical Camera and mmWave Radar System
      　  Chen Zhu, Zhouxiang Zhao, Zejing Shan, Lijie Yang, Sijie Ji, Zhaohui Yang, Zhaoyang Zhang

    Academic Services

    Invited Reviewer:
    Journal: TON, TMC, TWC, TCOM, IOTJ, TVT, ACM IMWUT, TIOT, CL, WCL, TSIP
    IEEE Internet of Things Journal, IEEE Transactions on Mobile Computing, ACM/IEEE Transactions on Networking, ACM Transactions on Internet of Things, IEEE Transactions on Vehicular Technology, IEEE Transactions on Wireless Communications, IEEE Transactions on Communications, IEEE Communications Letters, IEEE Wireless Communications Letters
    Conference: CVPR, GlobeCom, ICC, INFOCOM, AVSS, VTC, AICity 2021/2022 (CVPR Workshop)
    Services:
    Session Chiar: VTC Fall 2023
    Teaching Assistant(TA):
    CE3005 Computer Networks 2019-2021
    CZ3006 Net-Centric Computing AY20/21 (the head of TAs)
    Final Year Projects (FYP) Mentor:
    Hao Zhe Lim, 2019 Argota Timothy John Tee, 2020 Annan Wang, 2020 Yupeng Huang, 2021 Xuanye Zhang, 2022

    Awards & Honors

    Scholarship: NTU Research Scholarship, 2018-2022
    National Encouragement Scholarship, 2016
    Outstanding Student Scholarship, 2013/2015
    Janpan Infotec Inc Aunual Scholarship, 2014
    Lu Jiaxi Scholarship, 2012
    Competition: 2nd Place, Masked Face Recognition Challenge, ICCV21
    Silver Medal, Indoor Location Competition 2.0, Kaggle, 2021
    Final list(7/1736), AI+Wireless National Artificial Intelligence Competition, 2020
    Bronze Medal Award, AI Meets Beauty Challenge, MM2020
    Third Place, EmotioNet Challenge, CVPR2020
    Third Prize, "Challenge Cup" National College Student Academic Competition, 2017
    Second Prize, International Undergraduate Mathematical Contest in Modeling, 2017
    Second Prize, International Undergraduate Interdisciplinary Contest in Modeling, 2016
    Third Prize, China Undergraduate Mathematical Modeling Competition, 2016
    Second Prize, "Challenge Cup" National College Student Business Plan Competition, 2016
    Honorable Mention, China "Internet+"​ College Students Innovation and Entrepreneurship Competition, 2016
    Honorable Mention, Asia Region, The 39th International Collegiate Programming Contest, 2014
    Silver Medal, China Adolescents Science & Technology Innovation Contest(CASTIC), 2011
    Honor: Excellent Paper Award, IET Radar 2023
    N2Women Young Researcher Fellowship, SenSys 2023
    Singapore 100 Women in Tech, 2023
    SenSys Travel Grant, 2022
    Excellent Bachelor Thesis, ECNU
    Excellent Student Cadre, ECNU
    The Most Outstanding Collaboration Awards, NTU