RAG Pipeline for Textbook QA

Overview A retrieval-augmented generation (RAG) system designed to index and query large textbook collections for intelligent question-answering. Key Achievements Indexed 1,000+ textbook pages into FAISS with dense + BM25 retrieval Implemented DocETL style query planning for efficient document processing Built ensemble re-ranking system for improved answer quality Added structured logging and visualization for system monitoring Technical Implementation The system combines multiple advanced techniques: Dense Retrieval: FAISS indexing with sentence transformers Sparse Retrieval: BM25 for keyword-based matching Query Planning: DocETL style processing for complex queries Re-ranking: Ensemble methods for answer quality improvement Inference: Support for llama.cpp inference and document chunking Impact This RAG pipeline enables efficient querying of large document collections, making educational content more accessible and searchable through natural language interfaces. ...

1 min · 125 words · Raj Shah