noelle-mburu/finance-bill-chatbot

RAG chatbot that answers questions about the Kenya Finance Bill 2025 # Kenya Finance Bill 2025 Chatbot A conversational AI chatbot that answers questions about the **Kenya Finance Bill 2025** using Retrieval-Augmented Generation (RAG). Ask it anything about the bill and get answers sourced directly from the official document. 🔗 **Try the Live App** > **Note:** The app may take 30–60 seconds to wake up on first visit due to Streamlit's free tier inactivity policy. --- --- ## What is RAG? Large Language Models (LLMs) are trained on general data and have a knowledge cutoff; they can't answer questions about specific documents reliably. **RAG (Retrieval-Augmented Generation)** solves this by: 1. **Retrieving** the most relevant chunks from the document based on the user's question 2. **Augmenting** the LLM prompt with that retrieved context 3. **Generating** a precise, factual answer using only the document content This means the chatbot answers from the actual Finance Bill, not from guesswork. --- ## How It Works ``` User Question │ ▼ BGE Embedding Model ──► ChromaDB Vector Store ──► Top 5 Relevant Chunks │ ▼ Groq LLaMA 3.1 (LLM) │ ▼ Answer ``` | Component | Tool | Purpose | |---|---|---| | Document Loader | PyPDF | Reads the Finance Bill PDF | | Text Splitter | LangChain RecursiveCharacterTextSplitter | Splits document into overlapping chunks | | Embedding Model | BAAI/bge-base-en (Sentence Transformers) | Converts text to vectors that capture meaning | | Vector Database | ChromaDB | Stores and searches embeddings by similarity | | LLM | Groq LLaMA 3.1 8B | Generates answers from retrieved context | | Framework | LangChain | Connects all components into a pipeline | | UI | Streamlit | Web interface for the chatbot | --- ## Features - **Factual answers** — responses are based only on the Finance Bill, not general knowledge - **Conversation memory** — ask follow-up questions and the chatbot remembers context - **Honest responses** — if the answer isn't in the bill, it says so instead of hallucinating - **Clean UI** …