What does IDF stand for?

Inverse Document Frequency (datamining)

This definition appears very rarely and is found in the following Acronym Finder categories:

Information technology (IT) and computers
Science, medicine, engineering, etc.

Other Resources:

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Samples in periodicals archive:

It included important concepts like the vector space model, Inverse Document Frequency (IDF), Term Frequency (TF), term discrimination values, and relevancy feedback mechanisms.

History of the Search Engine - What Came before Google?

Inverse Document Frequency (IDF): The IDF is computed as idf= - log (number of documents containing the sequence / number of documents in the collection).

Knowledge Discovery in Documents by Extracting Frequent Word Sequences