Wenchang Chai - UC San Diego

About Me

I am a PhD student in Data Science at UC San Diego, advised by Haojian Jin in the AI Smith Lab. My current research focuses on privacy in genetic testing.

I received my BSc (Hons) in Computer Science with First Class Honours from The Hong Kong Polytechnic University in 2026. My prior work spans satellite IoT, edge AI and mathematical reasoning. Curriculum vitae.

Education

University of California San Diego

2026–present

PhD student in Data Science

Halıcıoğlu Data Science Institute · Advisor: Haojian Jin

The Hong Kong Polytechnic University

2022–2026

BSc (Hons) in Computer Science

First Class Honours · Minor in Artificial Intelligence and Information Engineering

Publications

First/Co-First Author Publications

[C1] Satellite IoT in Practice: A First Measurement Study on Network Availability, Performance, and Costs

Wenchang Chai, Jinhong Liu, Ziyue Zhang, Xianjin Xia, Yuanqing Zheng, Ningning Hou, Qiang Yang, Weiwei Chen, Tao Gu

ACM IMC 2025 · 891–899DOI Author PDF

[J1] Verifying energy generation via edge LLM for web3-based decentralized clean energy networks

Shan Jiang, Wenchang Chai, Mingjin Zhang, Jiannong Cao, Shichang Xuan, Jiaxing Shen

Shan Jiang and Wenchang Chai contributed equally.

Information Fusion, 2026 · 127, Part A, 103752DOI

Co-Author Publications

[C2] From Interference Mitigation to Toleration: Pathway to Practical Spatial Reuse in LPWANs

Ruonan Li, Ziyue Zhang, Xianjin Xia, Ningning Hou, Wenchang Chai, Shiming Yu, Yuanqing Zheng, Tao Gu

ACM MobiCom 2025 · 422–437DOI Author PDF Code

[C3] Thinking Before You Speak: A Proactive Test-time Scaling Approach

Cong Liu, Wenchang Chai, Hejun Wu, Yan Pan, Pengxu Wei, Liang Lin

Findings of EMNLP 2025 · 24643–24650DOI ACL Anthology PDF Code

[J2] LitchiInst: Instance segmentation of the main fruit-bearing branch via fruit-branch association for robotic litchi harvesting

Yukun Qian, Wenchang Chai, Haitao Wang, Zhiyang Mai, Liangliang Zhou, Hejun Wu

Biosystems Engineering, 2026 · 271, 104586DOI

Selected Research Experience

Measuring satellite IoT in practice

ACM IMC · 2025 · First author

My work: Built ground-station devices and satellite-pass scheduling software; collected and analysed measurement data. Paper

Verifying decentralised energy generation

Information Fusion · 2026 · Co-first author

My work: Analysed model behaviour for edge deployment; contributed to framework evaluation. Paper

Thinking Before You Speak

Findings of EMNLP · 2025 · Co-author

My work: Deployed Qwen2.5 and analysed mathematical-reasoning evaluations; contributed code. Paper

Professional Experience

Tencent AI Lab

Jul–Sep 2024

Research Intern · AI for Science

Worked on scheduling and data caching for Kubernetes-based batch computing.

Honours & Awards

COMPUTHON · Second Runner-up — Undergraduate Stream · Team Podex · PolyU | 2026
Au Bak Ling Charity Trust Scholarship — The Hong Kong Polytechnic University | 2025
Dean’s Honours List — The Hong Kong Polytechnic University | 2023/24, 2024/25