Nearest neighbor search

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At a glance

Class

Notion

Domain

Science and technology

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What Wikipedia says

Nearest neighbor search (NNS), as a form of proximity search, is the optimization problem of finding the point in a given set that is closest (or most similar) to a given point. Closeness is typically expressed in terms of a dissimilarity function: the less similar the objects, the larger the function values.

Excerpt from the Wikipedia article “Nearest neighbor search”, under the CC BY-SA 4.0 license. Read the article on Wikipedia