Xupeng Chen
Research Scientist @ TikTok ｜ LLM & Multimodal AI for E-commerce
- Role
- Ai Research Scientist at TikTok
- Location
- Bellevue, WA, US
- LinkedIn followers
- 500 followers
About Xupeng Chen
Research Scientist, TikTok Applying large-language and multimodal models to drive…
Experience
Ai Research Scientist
Jun 2025 — Present · Seattle, WA, US
Applied SFT and reinforcement learning to train multimodal LLMs, enhancing reasoning, chain-of-thought generation, and confidence calibration- Explored grounding and alignment strategies—including verifiable rewards, retrieval-augmented reasoning, and semantic consistency—to strengthen multimodal understanding in e-commerce applications- Designed, trained, and deployed multimarket multimodal LLMs for large-scale governance and content moderation, improving accuracy, scalability, and reducing manual review costs across global marketplaces.
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