Tiny GraphRAG (Part 2)

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2024-11-15 10:00:03

In Part 1, we built a minimal implementation of GraphRAG that demonstrated the core concepts. Now we'll extend our implementation with three significant improvements that make it more suitable for production use:

The complete implementation of these features is available in the repository in the micro-graphrag branch. The expanded implementation comes in at around 1500 lines of code with the new additions.

The build pipeline has been updated with new dataclasses and methods to support our enhanced features. The core data structures have been expanded to better represent our document processing pipeline:

The main document processing pipeline has been significantly enhanced to support entity disambiguation and improved graph construction. The process now happens in two passes:

The two-pass approach allows us to gather all possible entity mentions with their context before making disambiguation decisions, create a clean graph structure using only canonical entity forms, and maintain proper relationship mapping between disambiguated entities.

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