tf–idf - WikipediaIn information retrieval, tf–idf (also TF*IDF, TFIDF, TF–IDF, or Tf–idf), short for term frequency–inverse document frequency, is a measure of importance of a word to a document in a collection or corpus, adjusted for the fact that some words appear more frequently in general.[1] It was often used as a weighting factor in searches of information retrieval, text mining, and user modeling. A survey
