What is the use of TF IDF
TF-IDF stands for Term Frequency-Inverse Document Frequency. It is a numerical statistic that is used in Natural Language Processing (NLP) and information retrieval to evaluate the importance of a word in a document relative to a collection of documents (corpus).
Here's how TF-IDF is calculated and its use:
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Term Frequency (TF):
- Term Frequency measures how frequently a term (word) appears in a document. It is calculated by dividing the number of times a term occurs in a document by the total number of terms in the document. TF helps to understand the importance of a word within a document.
TF(t,d)=Total number of terms in document d
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