Ruixuan Tu
Student Trainee at AI Mage Inc.
Tokyo, Japan
Summary
🤩
Rockstar🎓
Top SchoolRuixuan Tu is an NLP and LLM-focused researcher-engineer with nine years of experience building and evaluating large-scale conversational systems and retrieval-augmented pipelines. Currently a student trainee at RIKEN AIP and an MS-IST candidate at the University of Tokyo, Ruixuan has driven empirical work on 20K+ human interactions, fine-tuning with demographic-aware DPO loss, and practical RAG deployments across industry and research teams. Their background spans rigorous ML theory experiments, summary evaluation and hallucination reduction published in top venues, and production ML engineering—having contributed to RakutenAI-3.0 and deployed rerankers for Vectara’s service. Comfortable across PyTorch, Hugging Face, LangChain and evaluation metrics (BERTScore variants, ROUGE, perplexity), they bridge math-heavy analysis with hands-on systemization. A two-time honors graduate from UW–Madison with deep mentoring and teaching experience, Ruixuan also contributes to FLOSS via KDE and brings an unusually broad curriculum footprint (CS, math, stats, Japanese) that supports cross-disciplinary problem solving.
9 years of coding experience
2 years of employment as a software developer
Bachelor of Science - BS, Computer Sciences (Honors), Mathematics (Honors), Statistics, Data Science, Japanese, 3.857/4.0 with 247 credits (2 times of graduation requirement), Bachelor of Science - BS, Computer Sciences (Honors), Mathematics (Honors), Statistics, Data Science, Japanese, 3.857/4.0 with 247 credits (2 times of graduation requirement) at University of Wisconsin-MadisonHigh School Diploma (Honors), Weighted GPA 4.325, Unweighted GPA 3.816, Cumulative Credits 28.500, High School Diploma (Honors), Weighted GPA 4.325, Unweighted GPA 3.816, Cumulative Credits 28.500 at Attached High School to Jiangxi Normal UniversitySpecial, Independent Learning, A, Special, Independent Learning, A at University of Wisconsin - Independent LearningAI Startup School, AI Startup School at Y CombinatorUniversity of Tokyo
English, chinese (mandarin, gan), Japanese, Korean
Github Skills (62)
3d-reconstruction10
image-stitching10
subsonic10
texturing10
haiku10
structure-from-motion10
music10
python-bindings9
photogrammetry9
linux9
ports9
operating-system9
netease-music9
filtering9
package-manager9
Programming languages (12)
Github contributions (5)
TURX/CB-SAT-Auto-Registration
May 2020 - Sep 2020
Your helper in College Board SAT registration
Contributions:44 commits, 1 PR, 48 pushes in 4 months
satphpregistrationlaravelboard
aitc19x/VR-JC
Aug 2019 - Dec 2020
a MR project prolonging cultural communication between Japan and China
Contributions:1 release, 26 commits, 8 PRs in 1 year 4 months
chinaculturalcommunication
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