Contact Info

✉️ Email: [email protected]

🎓 My Google Scholar

🔗 My LinkedIn

📍 La Jolla, California, 92092

Leisure Interests

🏐 Volleyball

⚽ Soccer — Arsenal fan! COYG!

🎵 Playing Bamboo Flute

See the amazing Jasmine Field Orchestra @ UIUC!

Languages

🇨🇳 Chinese

🇬🇧 English

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This homepage is a beta version - contents are prone to get updated soon ~~

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About me

Hi, I’m Chen Si (司宸), a Master’s student in Computer Science at the University of California, San Diego (UCSD). I previously earned my Bachelor’s degree in Computer Science from the University of Illinois Urbana-Champaign (UIUC). Across my training, I’ve been fortunate to collaborate with Prof. Hao Su, Prof. Romit Choudhury, and Prof. Lianhui Qin, which shaped how I think about building learning systems that can perceive, reason, and act in the real world.

Broadly, I’m interested in multimodal AI models—how to endow agents with robust perception, grounded reasoning, and reliable decision-making in open-ended environments. My long-term goal is to develop systems that combine rich sensory understanding with structured, test-time reasoning, so they can generalize beyond curated benchmarks and behave consistently under new situations. I’m especially excited by a two-way approach:

(1) grounding intelligence through computer vision and robotics, where models learn from geometry, dynamics, and interaction; and

(2) advancing reasoning-centric agents through language and memory, where models plan, reflect, and use tools to solve complex tasks.

I enjoy research that bridges these directions—linking what an agent perceives with what it can reason about—to move toward more trustworthy and capable embodied systems.

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I’m currently applying to PhD programs (Fall 2026) and am also open to research internships for Summer 2026. If you think my background could be a fit—or you can connect me with relevant collaborators—please feel free to reach out. You can also find more details on my CV and LinkedIn.

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Academic History

University of California, San Diego

Master of Science - Computer Science & Engineering

September 2024 - Present

• GPA: 3.962 / 4.0

[Nice graduate journey has just begun … ]

University of Illinois, Urbana-Champaign

Bachelor of Science - Computer Science Minor - Statistics

August 2020 - May 2024

• GPA: 3.99 / 4.0
• 2023-2024 University Honors Bronze Tablet Scholars
• James Scholar (January 2021 - May 2024)
• Dean’s List - Grainger College of Engineering in the following semesters: [Spring 2021, Fall 2021, Spring 2022, Fall 2022, Spring 2023, Fall 2023, Spring 2024]

Publications

ArcMemo: Abstract Reasoning Composition with Lifelong LLM Memory

Matthew Ho, Chen Si, Zhaoxiang Feng, Fangxu Yu, Zhijian Liu, Zhiting Hu, Lianhui Qin

In review, ICLR 2026

We just won Runners Up Award in ARC Prize 25’s Paper Track!

[paper]

Explicit Context-Driven Neural Acoustic Modeling for High-Fidelity RIR Generation

Chen Si, Qianyi Wu, Chaitanya Amballa, Romit Roy Choudhury

In review, CVPR 2026

[paper]

Coupled management of electric vehicle workplace charging and office building loads

Shanshan Liu, Alex Vlachokostas, Chen Si, Eleftheria Kontou

Transportation Research Part D: Transport and Environment, Volume 134, September 2024, 104317

[paper]