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English
Noun
IDF (plural IDFs)
- (statistics) Initialism of inverse document frequency.
2011, Matthew Russell, Mining the Social Web, page 215:A finer point to observe is that the sample implementation provided in Example 7-4 adjusts the IDF score by adding a value of 1.0 to the logarithm calculation, for the purposes of illustration and because we're dealing with a trivial document set.
2014, Manas A. Pathak, Beginning Data Science with R, page 147:The idea behind inverse document frequency (IDF) is that all words in the corpus are not equally important.
2019, Hobson Lane, Cole Howard, Hannes Max Hapke, Natural Language Processing In Action , Shelter Island: Manning, →ISBN:Inverse document frequency, or IDF, is your window through Zipf in topic analysis.
Derived terms
Proper noun
IDF
- (military) Initialism of Iceland Defense Force.
- (military) Initialism of Irish Defence Forces.
- (military) Initialism of Israel Defense Forces.
2023 October 9, Ruth Michaelson, Ben Doherty, “Israel ‘going on the offensive’ after retaking territories overrun by Hamas”, in The Guardian, →ISSN:The IDF spokesperson provided no comment on whether it had halted the practice, or the reported use of white phosphorus in Gaza, a densely populated area and home to more than 2 million people.
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