Tag
index-parameters
- Oct 9, 2024 HNSW Layer Assignment and the Greedy Descent How a hierarchical proximity graph assigns levels by an exponential draw, why the top layers act as a coarse skip list, and what ef actually bounds during the search. information retrieval
- Aug 15, 2023 Metadata Filtering Inside a Vector Index and the Selectivity Collapse Why post-filtering silently returns fewer results than requested, how pre-filtering degrades graph traversal, and what the filter selectivity threshold does to each index family. information retrieval