Chenghan Xie
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Experience
Experience
Stanford Research
Stanford University
June 2025 – Present
Multimodal Interaction & World Model Intern
ByteDance Seed
June 2025 – September 2025
Accelerated diffusion model training by leveraging advances in representation learning.
Incorporated timestep scaling as a temperature factor during contrastive learning steps.
Improved FID from 15 to 13 by optimizing training signals and regularizers.
Algorithm Intern
Shanghai Artificial Intelligence Laboratory
February 2024 – August 2024
Built optics-domain benchmarks and integrated large models (GPT-4o, LLaMA-3).
Evaluated mainstream LLMs on domain-specific tasks focusing on reasoning capabilities.
Fine-tuned models like LLaMA 3 using QLORA and PEFT for scientific Q&A.
Education
Ph.D. in Operations Research, 2024 - 2029 (expected)
Stanford University
Present
Advisors: Jose Blanchet, Renyuan Xu
B.Sc. in Mathematics, 2020 - 2024
Fudan University
Present
GPA: 3.85/4.0 (Major GPA: 3.92/4.0)
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