The term frequency - inverse document frequency (TF-IDF) approach to text vectorization is based on the bag-of-words representation:

Question

BlackTom AI · Accepted Answer

The question asks about whether the TF-IDF approach to text vectorization is based on the bag-of-words representation.
Option 1: True. TF-IDF indeed builds on the bag-of-words idea, where documents are represented as vectors of term counts or frequencies for a vocabulary, and then each term's frequency is weighted by how informative it is across the corpus via inverse document frequency. This means word order is ignored, and features are essentially the presence and frequency of terms within a document.
Option 2: False. This would assert that TF-IDF is not rooted in bag-of-words, implying some other representation is used. In practice, TF-IDF does rely on a bag-of-words-like structure: a fixed vocabulary is created, and documents are represented as sparse vectors indicating term occurrences or frequencies, with weights adjusted by IDF. The idea of preserving word order or syntactic structure is not part of the standard TF-IDF bag-of-words approach, which is what makes TF-IDF compatible with bag-of-words.
In summary, recognizing that TF-IDF operates on a bag-of-words framework helps explain why vector representations treat documents as collections of term tokens rather than sequences with preserved order; the weighting by IDF further refines the representation by downscaling common terms and upscaling rare, informative terms.

SP2025.B69.DAT.562.24 COMPLETE AFTER VIDEO 5: TF-IDF (Module 2 Quiz #4)

The term frequency - inverse document frequency (TF-IDF) approach to text vectorization is based on the bag-of-words representation:

View Explanation

Log in for full answers

Similar Questions

When analyzing articles, the tf-idf-tf_idf framework is used to:

By vectorizing text using TF-IDF approach we lose some information contained in the raw document:

The TF-IDF approach considers information about the occurrences of tokens in all documents of a text corpus:

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

Which of the following statement regarding cost is correct:

More Practical Tools for Students Powered by AI Study Helper

Homework AI Solver

Stylized AI Paper Writer

Plagiarism Checker Assistant

Citation AI Academic Writing Tool

In-Class Translation Assistant

AI Note Generator

AI Quiz Answers

Past Exam Questions from University Test Bank

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler