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

True/False: tf-idf weight is a metric derived by taking the log of N divided by the document frequency where N is the total number of documents in a collection.Question 16Select one:TrueFalse

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

Question 201 MarkREVISITIn a document collection consisting of 500 documents, a term appears 50 times in a specific document that contains 1000 words. If this term appears in 100 out of the total 500 documents, what is its TF-IDF score?Answer choicesSelect only one option0.20.3490.03490.319

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

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