14.In TF-IDF what does IDF stand for?  A. Inverse Document Frequency  B. Indented Document Frequency  C. Index Document Frequency  D. Inverse Data Frequency

If the term frequency (TF) of a word in a document is 0.1 and the inverse document frequency (IDF) of the word is 1.609, what is the TF-IDF weighted value of the word in the document?Question 3Answera.0.1609b.0.162c.0.161d.0.160

TF - IDF represents

The tf-idf weight is highest when a term t occurs many times within a small number of documents.Question 7Select one:TrueFalse

12.What is the formula for calculating TF-IDF score?  A. (Number of times X appears in a document) / (Total number of terms in the document) * log(Total number of documents / Number of documents containing X)  B. (Total number of documents / Number of documents containing X) * log(Number of times X appears in a document) / (Total number of terms in the document)  C. (Number of times X appears in a document) * log(Total number of documents / Number of documents containing X) / (Total number of terms in the document)  D. (Total number of terms in the document) * log(Total number of documents / Number of documents containing X) / (Number of times X appears in a document)

Consider a term that appears 15 times in a document of 500 words. In a collection of 1000 documents, this term appears in 200 documents. What is the TF-IDF score for this term?Answer choicesSelect only one optionREVISIT0.10.02090.20.209