Tag
hybrid-search
- May 23, 2025 Score Normalization and Rank Fusion Across Retrievers Why scores from different retrievers cannot be compared, how score distributions are normalized, and what reciprocal rank fusion gives up to avoid the problem. 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