Actively seeking faculty positions

Sijie Ji

Schmidt Science Fellow @ Caltech

I am currently working with Prof. Wei Gao in the Division of Engineering and Applied Science at Caltech. I also hold a joint appointment with UCLA, working with Prof. Mani Srivastava.

I obtained my Ph.D. from Nanyang Technological University in 2023, under the guidance of Prof. Mo Li.

Broadly interested in sensing, deep learning, ubiquitous computing, and their applications in digital healthcare, cyber-physical systems, and next-gen AIoT.

Email Me Google Scholar

AI + Health AI + Wireless Sensing + X Physical AI Human-Centric Cyber-Physical Systems

Latest News

[1/26] Papers are accepted by IEEE TMC & ICASSP 2026. Congrats to the team!
[1/26] Give a guest lecture, CSE 5360 Artificial Intelligence (Graduate-level), at the University of Texas at Arlington.
[11/25] Invited to serve as TPC member of EMSOFT 2026.
[09/25] GSRF is accepted by NeurIPS 2025 as a spotlight (~3.19%). Congrats to Kang! See you in SD!
[07/25] Papers are accepted by IEEE TMC & ACM MM. Congrats to Xinzhe and Sheng!
[06/25] Invited to serve as TPC member of Sensys 2026. Welcome to submit papers!
[05/25] LLM + Mental Health papers are accepted by SenSys (poster), ACL 2025. Congrats to the team!
[05/25] Invited to serve as TPC member of MobiCom Demo, MobiCom Poster and BodySys 2025.

[04/25] Invited to serve as a co-Chair for BuildSys 2025.

[04/25] Papers accepted to ACM IMWUT / Ubicomp, IEEE Comm Mag, ICC. Congrats to Luca, Senthil and Man!

[02/25] Invited to serve as TPC member of EMSOFT, ESWeek'25.

[01/25] Give an invited seminar at UC Merced.

[01/25] NeurIT is accepted by ICRA 2025. Congrats to Xinzhe!

[12/24] Invited to serve as a TPC member of FMSys 2025 and Shadow TPC of CoNEXT 2025.

[11/24] We are organizing HumanSys 2025.

[10/24] Invited to serve as a TPC member of MobiSys 2025.

[07/24] Gave an invited talk at Peking University.

[07/24] RS-BNN is accepted by IEEE TVT.

[06/24] Invited to serve as a TPC member of ICPADS 2024 and a session chair of ICDCS 2024. See you in NYC!

[04/24] MuSAC is accepted by ICDCS 2024.

[04/24] Selected as a CPS Rising Star.

[04/24] Honored to join Schmidt Science Fellows 2024 cohort!

[02/24] Invited to serve as Co-Chair for the 2024 SenSys/BuildSys Joint Ph.D. Forum, and as an AEC member for MobiCom 2024.

[12/23] BG-BERT is accepted by ICASSP 2024. Code available.

[10/23] Selected for the N2Women Young Researcher Fellowship and organized the N2Women event at SenSys 2023.

[10/23] HandFi is accepted by SenSys 2023 and has been filed as a patent.

[09/23] Joined HKU. Hit me up when you are in Hong Kong!

[09/23] Honored to be listed in the Singapore 100 Women in Tech.

[08/23] Gave invited talks at Zhejiang University and Zhejiang Lab.

[07/23] Spent a wonderful month at ShanghaiTech University.

[06/23] Successfully defended my Ph.D. thesis.

[01/23] JPTS is accepted by ICC 2023.

[12/22] Gave an invited Student Lecture Series talk on SiFall. Video available.

[10/22] SiFall is accepted by SenSys 2022.

[01/22] Gave an invited Student Lecture Series talk on CLNet. Video available.

[10/21] 1st runner-up in the Masked Face Recognition Challenge, ICCV 2021.

[07/21] CLNet is accepted by IEEE Wireless Communications Letters.

[06/20] 2nd runner-up in the AI Meets Beauty Challenge, ACM MM 2020.

[05/20] 2nd runner-up in the EmotioNet Challenge, CVPR 2020.

Selected Publications

* denotes co-first/corresponding author. ^ denotes mentored students.

SenSys 2023

Construct 3D Hand Skeleton with Commercial WiFi

Sijie Ji, Xuanye Zhang^, Yuanqing Zheng, Mo Li

PDF Code Project

SenSys 2022

SiFall: Practical Online Fall Detection with RF Sensing

Sijie Ji, Yaxiong Xie, Mo Li

PDF Video Slides

WCL 2021

CLNet: Complex Input Lightweight Neural Network for CSI Feedback

Sijie Ji, Mo Li

PDF Code

ICDCS 2024

MuSAC: Mutualistic Sensing and Communication for Mobile Crowdsensing

Sijie Ji, Lixiang Lian, Yuanqing Zheng, Chenshu Wu

PDF

ACL 2025

ProMind-LLM: Proactive Mental Health Care via Causal Reasoning with Sensor Data

Xinzhe Zheng^, Sijie Ji*, Jiawei Sun^, Renqi Chen^, Wei Gao, Mani Srivastava

PDF

SenSys 2025

Transforming Mental Health Care with Autonomous LLM Agents at the Edge

Sijie Ji, Xinzhe Zheng^, Wei Gao, Mani Srivastava

PDF

More Publications

[ICC'23] JPTS: Enhancing Deep Learning Performance of Massive MIMO CSI Feedback — Sijie Ji, Mo Li.
[ICASSP'24] Predicting Adverse Events for Patients with Type-1 Diabetes via Self-supervised Learning — Xinzhe Zheng^, Sijie Ji , Chenshu Wu.
[MM'25] CardioLive: Empowering Video Streaming with Online Cardiac Monitoring via Audio-Visual Learning — Sheng Lyu^, Ruiming Huang^, Sijie Ji, et al.
[IET Radar'23] Excellent Paper Award. Joint location design and resource allocation for ISAC — Yuanhao Cui, Weijie Yuan, Sijie Ji*, et al.

View Full List on Google Scholar