Hi, I am Joshua CHOI Kui-Wang 蔡居宏, a Computer Science undergraduate student studying at CityUHK.
I am highly interested in the design and analysis of algorithms across various topics.
EDUCATION
- B.Sc. Computer Science, City University of Hong Kong, Hong Kong (Sep 2024 - Jun 2028 (Anticipated Graduation Date))
- Dean’s List (2024 - 2025) (2025 - 2026 Semester A)
- Competitive Programming School Team Member (2024 - Present)
- Sing Yin Secondary School, Hong Kong (Sep 2018 - May 2024)
- 2023/24 1st in Mathematics (Extended Part - Module 1)
- 2022/23 Youth Arch Student Improvement Award
- Competitive Programming School Team Member (2021 - 2024)
- Table Tennis School Team Member (2019 - 2024)
RESEARCH EXPERIENCE
- Undergraduate Research Student, Prof. Bo Li’s Group, Department of Computing, PolyU, Hong Kong (Feb 2026 - Present)
- Supervised by Prof. Bo Li
- Research Topic: Fair Division, Computational Social Choice, Theory of Computing
- Undergraduate Research Student, Prof. Minming Li’s Group, Department of Computer Science, CityU, Hong Kong (Jul 2025 - Present)
- Supervised by Prof. Minming Li
- Research Topic: Fair Division, Computational Social Choice, Mechanism Design
- DIMACS, Rutgers University, New Jersey, United States (May 2026 - Jul 2026)
- Summer Research Internship, Bright Future Engineering Talent Hub, College of Engineering, CityU, Hong Kong (Mar 2024 - Jul 2024)
- Supervised by Prof. Jing Liao
- Research Topic: AI Painting
- Learnt and researched about state-of-the-art image and video generation models
- Had hands-on experience with LoRA and Stable Diffusion
- Produced a 30-second, entirely AI-generated video along with video editing techniques
WORK EXPERIENCE
- Research Assistant, School of Law, CityU, Hong Kong (Jun 2025 - Jun 2026)
- Supervised by Prof. Martin Lai
- Designed an interactive game simulating collusive pricing behavior based on good software design practices
- Developed a Windows application in C# through the Spiral Development Lifecycle
- Used by 16 participants in the course LW6161E
- Implemented TCP/IP networking framework to enable multi-user gameplay
- Intern (Data & Analytics), Research Grants and Contracts Office, CityU, Hong Kong (Sep 2025 - Jun 2026)
- Provided data analytics support for evaluating and enhancing CityU’s institutional research performance
- Analyzed over 30 datasets, with over 1000 records
- Produced 20 visualizations to facilitate data analysis
- PALSI Leader (MA1200 - Calculus and Basic Linear Algebra I), Talent and Education Development Office, CityU, Hong Kong (Sep 2025 - Dec 2025)
- Nominated by the Department of Mathematics
- Tutored 8 students on the course MA1200 - Calculus and Basic Linear Algebra I
PREPRINTS
- Kui-Wang Choi and Minming Li (2026), Temporal Fair Division of Indivisible Goods with Scheduling. arXiv:2601.12835 [arXiv]
SCHOLARSHIPS
- Bright Future Whole Person Development Scholarship 2025/2026, HKD 181,000
- HKSAR Government Scholarship Fund (Non-Academic Awards) – Talent Development Scholarship, HKD 10,000
SELECTED ACHIEVEMENTS
- 2026 ICPC National Invitation Tournament (Shenzhen) - Bronze Medal (Apr 2026)
- International Invitational Math Optimization Challenge 2025 - Gold Award (8th place out of 209 teams) (Dec 2025)
- IEEEXtreme 19.0 Programming Competition - Hong Kong Champion (Oct 2025)
- The 2024 ICPC Asia Kunming Regional Contest - Bronze Medal (Dec 2024)
- The 2024 ICPC Asia Hong Kong Regional Contest - Bronze Medal (Dec 2024)
SELECTED PROJECTS
- α-GraphDC: Setting a New State-of-the-Art on NLGraph Under a 15B Parameter Budget (May 2026)
- Achieved new State-of-the-Art (76.9% accuracy) on NLGraph connectivity-hard benchmark, outperforming all sub-15B models
- Engineered structured prompting and graph decomposition techniques using 4-bit quantized Qwen-2.5-14B-Instruct without any fine-tuning
- CAVS: Consensus-based AI Verification System (Jan 2026 - Apr 2026)
- Led a 6‑person team to build a copyright verification prototype for AIGC images.
- Designed a consensus algorithm using Python with 3 LLM judges (Stable Diffusion, OpenJourney, Segmind Tiny SD), achieving 70% agreement with copyrightable prompts
- Hong Kong Weather ETL Pipeline (May 2026 - Jun 2026)
- Assembled an Extract-Transform-Load pipeline from the Hong Kong Observatory API using Python, SQL, Pandas, Docker, and Streamlit
- Visualized and displayed temperatures using an interactive map for 25+ locations in Hong Kong
- Ensured 100% schema consistency by automating the pipeline for the database each run
LEADERSHIPS AND COMMUNITY SERVICES
- Leadership Horizons Programme 2025-26 by LinkedIn Learning (Apr 2026 - Present)
- Founder & Lead Researcher, Social Logic, Hong Kong (Mar 2026 - Present)
- An independent computational research initiative leveraging Algorithmic Game Theory and Mechanism Design to analyze and optimize Hong Kong’s socio-economic frameworks.
- Visit our website.
- HKSC Database Mini Competition Logistics Volunteer (Apr 2026)
CERTIFICATES
- Deloitte Australia Data Analytics Job Simulation, Forage (Mar 2026)
- Datacom Software Development Job Simulation, Forage (Feb 2026)
- MATLAB Programming Skills, MathWorks (Nov 2025)
- Google Data Analytics Professional Certificate, Coursera (Aug 2025)
AFFILIATED WEBSITES
PERSONAL INFORMATION
Where Am I?
Hong Kong
Language
- Cantonese: Native
- English: Working Proficiency (IELTS 7.5 in Dec 2023)
- Mandarin: Working Proficiency
Contact Information
Email in hex: 6B 75 69 77 63 68 6F 69 32 2D 63 40 6D 79 2E 63 69 74 79 75 2E 65 64 75 2E 68 6B
Misc
ORCID: 0009-0009-8723-0223