##  [TF–IDF Weighting](/tf-idf-weighting) 

  ##  [TF–IDF Weighting](https://information.quantumdictionary.io/tf-idf-weighting-0) 

  

 [![Information & Communication Dictionary](/sites/default/files/styles/large/public/2026-01/Information%20%26%20Communication.png.webp?itok=g4emS-T7)](/topic-specific-dictionaries/information-communication)



**Information & Communication Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A family of lexical weighting schemes that assign to each term in a document a numerical score equal to a function of the term's frequency in that document (TF) multiplied by a function of the term's rarity across a corpus (IDF).