Tag
cosine-similarity
- Aug 19, 2026 What a Distance Function Decides About Cluster Shape Squared Euclidean, cosine, Mahalanobis, and set distances each impose a different notion of similarity, and the choice fixes which clusters are available before any algorithm runs. machine learning
- 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
- Jul 28, 2025 Distance Concentration and Hubness in Embedding Spaces Why nearest-neighbour search degrades in high dimensions, how a few points become hubs that absorb most queries, and what those effects imply for measuring similarity between learned vectors. deep learning
- Dec 6, 2023 Random Hyperplane LSH and the Arithmetic of Banding How one random plane per bit turns cosine similarity into collision probability, and how band and row counts convert that probability into a practical recall curve with a sharp threshold. information retrieval