ZIH CHENG
WEI
Specialized in AI/ML Development and Full Stack Engineering
Experienced with RAG, LLM Integration, and Modern Web Technologies
2025AI & Vision
OCR System
Google Gemini Vision API • Error Handling • Data Validation
Gemini VisionOCRImage Processing
2024Machine Learning
Classification System
Random Forest • XGBoost • SVM • SMOTE-Tomek • Flask
Pythonscikit-learnXGBoost
2024RAG & NLP
Career Counseling AI
LangChain • OpenAI API • Vector Database • React • Node.js
LangChainOpenAIVector DB
2024LLM Integration
Game Knowledge Bot
Discord.js • Vector Search • Embedding • Context Window
Discord.jsRAGLLM
2024Full Stack
Location Service App
React Native • PHP • MySQL • Google Maps API • JWT Auth
React NativePHPMySQL