IDF

Definition : Inverse Document Frequency
Category : Computing » General Computing
Country/Region : Worldwide Worldwide
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Initialism

What does IDF mean?

Inverse Document Frequency (IDF) is a measure of the importance of a word within a collection of documents, such as a corpus or a database. It is a numerical representation of how unique or important a word or a term is within a collection of documents.
IDF is a component of the Term Frequency-Inverse Document Frequency (TF-IDF) weighting scheme, which is widely used in various natural language processing tasks, including document retrieval, text classification, and information retrieval systems.

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Worldwide IDF International DOI Foundation
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Worldwide IDF Intensity-Duration-Frequency
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Worldwide IDF Intel Developer Forum
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Tech Terms

Frequently Asked Questions

What is the full form of IDF in Text Analysis?

The full form of IDF is Inverse Document Frequency

What are the full forms of IDF in Computing?

Inverse Document Frequency | Intermediate Data Format

What are the full forms of IDF in Worldwide?

International Diabetes Federation | International DOI Foundation | Intensity-Duration-Frequency | Inverse Document Frequency | Intermediate Distribution Frame | Interaction Design Foundation | Intermediate Data Format | InDirect Fire | Intel Developer Forum | Integrated Dual Feed

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Translate Inverse Document Frequency into other languages

Citations Formatting rules vary by edition. Please verify against your required style manual.

APA Style

FullForms. (2026). IDF. FullForms.com. https://fullforms.com/IDF/full/28190

Chicago Style

FullForms. "IDF." Accessed June 4, 2026. https://fullforms.com/IDF/full/28190.

Harvard Style

FullForms (2026) 'IDF', FullForms.com. Available at: https://fullforms.com/IDF/full/28190 (Accessed: 04 June 2026).

MLA Style

"IDF." FullForms.com, 2026, https://fullforms.com/IDF/full/28190. Accessed 04 Jun. 2026.