Hierarchical Index Construction And Traversal

via “hierarchical-index-construction-and-traversal”

This repository showcases various advanced techniques for Retrieval-Augmented Generation (RAG) systems. Each technique has a detailed notebook tutorial.

Unique: Implements recursive document summarization to build multi-level hierarchies that enable top-down retrieval traversal, reducing embedding computations and improving efficiency for large collections — a structural approach to retrieval efficiency rather than algorithmic optimization

vs others: More efficient than flat indices for large collections because it reduces embeddings computed per query, and more effective than simple filtering because it uses semantic hierarchies rather than metadata-based pruning