Tag
similarity-metrics
- Aug 21, 2026 Similarity Metrics and the Normalisation They Require Why cosine, inner product, and Euclidean distance rank differently, what L2 normalisation changes about a vector index, and which failures come from mixing conventions. inference systems
- Jan 8, 2026 Cosine Similarity and the Geometry of Normalized Embedding Vectors What the cosine score actually measures, why length normalization turns it into a plain dot product, and when that normalization destroys information the model encoded. information retrieval