A text representation based on the bag-of-words approach is typically _____. Choose one best answer:

Question

A text representation based on the bag-of-words approach is typically _____.  Choose one best answer:

BlackTom AI · Accepted Answer

To tackle the question, let's first recall what a bag-of-words representation usually looks like in text analysis.
Option A: 'High-dimensional' — This captures the idea that each unique word in the vocabulary becomes a feature, leading to a feature space whose dimensionality equals the vocabulary size. This option misses the fact that most documents contain only a small subset of all possible words, so many features are zero for any given document.
Option B: 'Sparse' — This describes the typical sparsity of the representation, since any single document uses a tiny fraction of the total vocabulary, resulting in many zero entries. However, saying only 'Sparse' omits the important point that the dimensionality is also very large.
Option C: 'High-dimensional and sparse' — This combines both key properties: the number of features is extremely large (high-dimensional) because it includes every word in the vocabulary, and the representation is sparse because each document uses only a small portion of those words, leaving many zeros.
Option D: 'Neither high-dimensional, not sparse' — This is inaccurate for bag-of-words, because the approach inherently yields a large number of features and a lot of zeros per document due to the limited word usage in any single text.

In summary, the bag-of-words model typically yields a feature vector that is both very high in dimensionality and very sparse, since most documents do not contain most of the vocabulary words at all.

SP2025.B69.DAT.562.24 COMPLETE AFTER VIDEO 4: Bag-of-Words (Module 2 Quiz #3)

A text representation based on the bag-of-words approach is typically _____. Choose one best answer:

View Explanation

Log in for full answers

Similar Questions

What is a bag-of-words representation of a document in a text corpus? Choose one best answer:

Do you need to create a dictionary (vocabulary) to produce a bag-of-words representation of 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:

Under the assumptions used in cost-volume-profit analysis, as the activity increases:

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