avrabyt/RAG-Chatbot

Implements PDF document indexing and semantic similarity search to augment LLM prompts with relevant context from uploaded files, with session-based index caching and secure API key management through Databutton's secret store. The architecture separates concerns into frontend (Streamlit/Databutton app), document processing pipeline (PDF parsing and vector indexing), and LLM integration, retrieving top-N semantically similar chunks before passing them to the language model for context-aware generation.

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