> explore universe
Dive into the LibTrails galaxy — 121,000+ topics from 100 classic books, clustered by the Leiden algorithm and projected into 3D space. Each star is a semantic cluster. Each trail is a connection waiting to be discovered.
What you're looking at
- 100 books from Project Gutenberg spanning 3,000 years of literature
- 121,000+ topics extracted via a two-pass LLM pipeline (Gemma 27B + 4B)
- 2,400 clusters organized by the Leiden community detection algorithm
- 26 semantic domains with colors derived from PCA positioning
- Hybrid search combining BM25 full-text + vector similarity via Reciprocal Rank Fusion