{"repo":"mittalsonal/AI-Second-Brain","free":true,"listed":false,"github":"https://github.com/mittalsonal/AI-Second-Brain","clone":"git clone https://github.com/mittalsonal/AI-Second-Brain.git","description":"A personal AI knowledge assistant powered by RAG, semantic search, and document understanding for context-aware answers.","language":"TypeScript","stars":10,"topics":["document-processing","fastapi","generative-ai","llm","mongodb","nextjs","ollama","python","rag","semantic-search"],"license":null,"category":"ai-agents","readme_excerpt":"🧠 AI Second Brain 🚀 Your Personal AI Knowledge Assistant powered by RAG + Hybrid Intelligence An advanced AI system that doesn’t just store information — it understands, retrieves, and intelligently responds using both your personal knowledge and general intelligence. --- 🚀 Features - 📝 Smart Note Storage Store and manage your personal knowledge - 🤖 AI Q&A (Hybrid RAG System) - Answers from your notes (RAG-based) - Falls back to general knowledge if needed - Clearly mentions when answer is not from notes - 🧠 Semantic Search with Embeddings Uses Sentence Transformers for meaning-based retrieval - 📄 Document Understanding (PDF / DOCX / TXT) Upload files → auto chunking → ask questions - ✨ AI Summarization Get concise summaries of notes and documents - 🎯 Multi-Question Handling Handles multiple questions in one query - 📊 System Stats Tracks notes count and AI usage --- 🛠️ Tech Stack Frontend - Next.js - TypeScript - Tailwind CSS Backend - FastAPI Database - MongoDB AI / ML - Ollama (LLaMA3) - Sentence Transformers (Embeddings) - Cosine Similarity (Vector Search) --- 🧠 How It Works 1. Data Processing - Notes & documents stored in MongoDB - Each note converted into vector embeddings 2. Query Understanding - User query → embedding - Compared with stored notes using cosine similarity 3. Retrieval (RAG) - Top relevant notes selected dynamically - Context created from best matches 4. Hybrid AI Response - If answer exists in notes → uses notes - If not → uses general knowled","default_branch":null,"files":null,"tree":[],"storefront":"/r/mittalsonal","claimed":false,"request_supported":{"post":"https://gitbuyer.com/r/mittalsonal/AI-Second-Brain/request-supported","requests":0},"note":"indexed from public GitHub; nothing is for sale on this page. Clone it from GitHub. Paid listings live at /search."}