Hi, I'm

Yanfei Dai

about.ts

const me = {

focus: "RecSys, Agentic AI, LLM, Ranking, Fraud Detection",

passion: "Papers, Mountaineering, Photography",

dream: "Research AI while exploring the world"

};

hover to scatter

Tech Stack

Recommendation SystemsTwo-Tower ModelsDIN/DIEN/DCNCTR/CVR PredictionRanking ModelsFraud DetectionFeature EngineeringXGBoost/LightGBMLLM Fine-tuningAgentic AIMCPLoRA/PEFTQuantizationPost-training OptimizationPyTorchTensorFlowDeepSpeedTensorRTFeature StoreSparkPython