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Vector Semantics and Embeddings

Vectors semantics is the standard way to represent word meaning in NLP. The idea of vector semantics is to represent a word as a point in a multidimensional semantic space that is derived from the distributions of the term is sometimes more strictly applied only to dense vectors like word2vec, rather than sparse tf-idf or PPMI vectors. The word 'embedding' derives from its mathematical sense as a mapping form one space or structure to another, although the meaning has shifted.

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Updated 2021-10-24

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