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tfeilyu/README.md

Hi, I'm Tengfei Lyu (吕腾飞) 👋

Final-year Ph.D. candidate @ HKUST · I build AI systems that ship to production.
Agentic & ML systems for high-stakes, real-world decision-making — urban, transportation, and scientific domains.

Homepage · Scholar · X / Twitter · lyutf@outlook.com


🚀 Real systems, in production

I don't just publish models — I ship them. My work runs live, at scale, with verified gains.

  • 🚕 ProfiLLM — live on DiDi (Brazil). An agentic LLM framework with utility-aligned user profiling for industrial ride-hailing dispatch. Deployed across three cities in Brazil, serving millions of daily orders, with verified live A/B-test gains.
    🌐 Project · 💻 Code · (VLDB, under review)
  • ☢️ NRFormer — deployed nationwide. A spatio-temporal transformer for nationwide nuclear-radiation forecasting, online for 1–24 day forecasts.
    📄 arXiv · 💻 Code · (KDD 2025, CCF A)

👨‍💻 About me

I'm a final-year Ph.D. candidate in the AI Thrust at The Hong Kong University of Science and Technology, Guangzhou, advised by Prof. Hao Liu and Prof. Hai Yang (Chair Professor). I work closely with Prof. Hui Xiong (Chair Professor) on LLMs and foundation models for urban general intelligence.

What I build: trustworthy, efficient, deployable AI for decision-making — from autonomous LLM agents that route ride-hailing fleets, to physics-informed transformers that forecast climate and radiation nationwide.

🎯 I'm on the job market — seeking academic and industry positions. Let's talk: lyutf@outlook.com


📊 By the numbers

  • 🏆 5 first-author CCF-A papers (KDD, IJCAI, SIGIR)
  • 📚 2 first-author IEEE Transactions papers (TITS, TCBB)
  • 📝 2 first/co-first author papers under review (VLDB, TKDE)
  • 📈 ~580 citations (Google Scholar)
  • 🌍 2 real-world deployments — ProfiLLM on DiDi Brazil; NRFormer online nationwide

🧭 Research

My work turns frontier AI into deployed systems that make consequential decisions in the physical world.

Theme Focus Representative work
🤖 LLM Agents for Decision-Making LLMs as autonomous agents for real-world transportation decisions ProfiLLM (VLDB '27, under review) · LLM-ODDR (IEEE TITS '26)
🔬 AI for Science Deep learning for climate, nuclear radiation, drug & cancer TelePiT (KDD '26) · NRFormer (KDD '25) · MDNN (IJCAI '21) · MGNN (SIGIR '20)
⚙️ Automated Machine Learning NAS for spatio-temporal data, graphs & molecules AutoSTF (KDD '25) · Auto-GNAS (IEEE TPDS '22) · GraphPAS (SIGIR '21)
📂 Expand for per-paper details

🤖 LLM Agents for Decision-Making

  • ProfiLLM — agentic LLM with utility-aligned user profiling for industrial ride-hailing dispatch; deployed on DiDi. Project · Code
  • LLM-ODDR — the first LLM framework for joint order dispatching and driver repositioning. arXiv · Code

🔬 AI for Science

  • TelePiT — Physics-Informed Teleconnection-Aware Transformer for global subseasonal-to-seasonal forecasting. arXiv · Code
  • NRFormer — spatio-temporal transformer for nationwide nuclear-radiation forecasting, deployed online. arXiv · Code
  • NRFormer+atmospheric diffusion-guided spatio-temporal transformer extending NRFormer for nuclear-radiation forecasting. Code · (TKDE, under review)
  • MDNN — multimodal deep neural net for drug–drug interaction events. Paper
  • MGNN — multimodal GNN for cancer patient survival. Paper

⚙️ Automated Machine Learning (AutoML)

  • AutoSTF — decoupled NAS for cost-effective automated spatio-temporal forecasting; up to 13.48× speedup. arXiv · Code
  • Auto-GNAS — parallel graph neural architecture search framework (co-author). Paper · Code
  • GraphPAS — parallel architecture search for graph neural networks (co-author). Paper · Code

📰 Recent news

  • 2026.06 🏆 Best Research Award (First place), AI at HKUST Guangzhou.
  • 2026.05 🚕 Released ProfiLLM — agentic LLM for ride-hailing dispatch, deployed on DiDi Brazil.
  • 2026.05 🎉 LLM-ODDR accepted to IEEE TITS.
  • 2025.11 🎉 TelePiT accepted to KDD 2026 (global S2S forecasting).
  • 2025.09 🥳 Paper accepted to NeurIPS 2025 (foundation models for scientific discovery).
  • 2025.07 🏅 KDD Student Travel Award.
  • 2025.05 🎉 NRFormer accepted to KDD 2025 (nationwide nuclear radiation forecasting).
  • 2024.11 🎉 AutoSTF accepted to KDD 2025 (automated spatio-temporal forecasting).

📄 Selected publications

Click to expand / collapse
Venue Paper Links
TKDE
(CCF A)
NRFormer+: Atmospheric Diffusion-Guided Spatio-Temporal Transformer for Nuclear-Radiation Forecasting
Tengfei Lyu, Jindong Han, Hao Liu
arXiv · Code
VLDB
(CCF A)
ProfiLLM: Utility-Aligned Agentic User Profiling for Industrial Ride-Hailing Dispatch
Tengfei Lyu*, Zirui Yuan*, et al.
Project · Code
IEEE TITS
(CCF B)
LLM-ODDR: Joint Order Dispatching and Driver Repositioning
Tengfei Lyu, Siyuan Feng, Hao Liu, Hai Yang
arXiv · Code
KDD 2026
(CCF A)
TelePiT: Physics-Informed Teleconnection-Aware Transformer
Tengfei Lyu, Weijia Zhang, Hao Liu
arXiv · Code
KDD 2025
(CCF A)
AutoSTF: Decoupled NAS for Cost-Effective Spatio-Temporal Forecasting
Tengfei Lyu, Weijia Zhang, Jinliang Deng, Hao Liu
arXiv · Code
KDD 2025
(CCF A)
NRFormer: Nationwide Nuclear-Radiation Forecasting
Tengfei Lyu, Jindong Han, Hao Liu
arXiv · Code
IEEE TCBB
(CCF B)
Predicting Cancer-Patient Survival with a Multimodal GNN
Jianliang Gao, Tengfei Lyu (First Student Author), et al.
Paper
IJCAI 2021
(CCF A)
MDNN: Multimodal Deep Neural Network for Drug–Drug Interaction Events
Tengfei Lyu, et al.
Paper
SIGIR 2020
(CCF A)
MGNN: Multimodal GNN for Cancer Patient Survival
Jianliang Gao, Tengfei Lyu (First Student Author), et al.
Paper

* equal contribution  ·  † under review.   Full list on Google Scholar.


🛠️ Services & Awards

Reviewer — SIGKDD (2024/2025/2026), WebConf (2025/2026), NeurIPS (2023/2024), TKDE, TKDD, TIST, TITS.

Selected awardsBest Research Award (2026, AI@HKUST(GZ)) · ACM SIGKDD Student Travel Award (2025)· ACM SIGIR Student Travel Award (2020) · Outstanding Paper Award (2024) · Outstanding Graduate of Hunan Province, Top 1% (2022) · National Scholarship, Top 1% (2016/2018/2020) · Liaoning Provincial Government Scholarship, Top 1% (2017)· Presidential Scholarship, Top 0.1% (2018) · President Innovation Scholarship, Top 0.1% (2021).


📬 Building deployable AI for real-world decision-making — and looking for my next role.
Homepage · Scholar · X / Twitter · lyutf@outlook.com

Pinned Loading

  1. AutoSTF AutoSTF Public

    Python 1 4

  2. NRFormer NRFormer Public

    Forked from usail-hkust/NRFormer

    Python

  3. usail-hkust/Awesome-Urban-Foundation-Models usail-hkust/Awesome-Urban-Foundation-Models Public

    An Awesome Collection of Urban Foundation Models (UFMs).

    219 14

  4. TelePiT TelePiT Public

    Python 2 2