Mini toolsDefinition
A numerical statistic that reflects how important a word is to a document in a collection.
Detailed Explanation
Term Frequency-Inverse Document Frequency combines how frequently a term appears in a document (TF) with how unique that term is across all documents (IDF). This helps identify words that are particularly characteristic of a document while downweighting common words.
Use Cases
Document classification, information retrieval, keyword extraction, search engine ranking
