The specificity refers to the rarity of a word in a corpus, if a word appears in a significant number of documents, it is therefore less representative of a particular subject or document than a word that appears only in that document or corpus.
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The relevance of a term is increased according to its rarity within the corpusBigSea Wide Corpus.
Thus, the presence of a rare term is synonymous with a “score” of high specificity.
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