In word embeddings built by factorizing PMI matrices, positive PMI carries most semantic and syntactic information, while negative PMI contributes almost solely syntactic information.
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Why So Down? The Role of Negative (and Positive) Pointwise Mutual Information in Distributional Semantics
In word embeddings built by factorizing PMI matrices, positive PMI carries most semantic and syntactic information, while negative PMI contributes almost solely syntactic information.