What is the primary goal of noise removal in text preprocessing?

To strip out non-textual elements like HTML tags and URLs

To convert all text to lowercase

When might it be beneficial to convert numbers to words in text preprocessing?

When the model needs to understand the semantic meaning of numbers in context

When the text contains only punctuation

When the text is in a language without numerals

When the model is designed for numerical prediction

A team is building a language model for code-mixed social media posts (e.g., 'I love this movie, yaar'). They want to capture phrases like 'love this' and 'this movie' while ignoring common words. Which approach should they use?

Generate bigrams from the tokenized text before removing stop words.

Remove stop words first, then generate bigrams from the remaining tokens.

Generate trigrams only, skipping bigrams.

Generate unigrams only and rely on the model to learn context.

In text preprocessing, what does handling numbers typically involve?

Always removing all numbers from the text

Converting all numbers to binary format

Replacing numbers with the token ' '

Deciding whether to keep, remove, or convert numbers to words based on context

Dell Data Science Optimize

Domain 3Objective 2

Text Preprocessing DATA-SCIENCE-OPTIMIZE Practice Questions (Page 3)

Part of the Natural Language Processing (NLP) domain, which accounts for 20% of the DATA-SCIENCE-OPTIMIZE exam.

44questions here

9free pages

15concepts

20%of the exam

Questions 11–15

11foundation · easy
Which of the following is an example of noise that should be removed during preprocessing?
Select an answer first
12foundation · easy
What is the primary goal of noise removal in text preprocessing?
Select an answer first
13foundation · easy
When might it be beneficial to convert numbers to words in text preprocessing?
Select an answer first
14application · medium
A team is building a language model for code-mixed social media posts (e.g., 'I love this movie, yaar'). They want to capture phrases like 'love this' and 'this movie' while ignoring common words. Which approach should they use?
Select an answer first
15foundation · easy
In text preprocessing, what does handling numbers typically involve?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to DATA-SCIENCE-OPTIMIZE

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by Dell Technologies. “DATA-SCIENCE-OPTIMIZE” is a trademark of its owner, used for identification only.