Exam (elaborations)
Text Preprocessing Questions and Answers Latest Updated
- Module
- Institution
Exam of 1 pages for the course NLP at NLP (Text Preprocessing)
[Show more]
Seller
Follow
julianah420
Reviews received
Content preview
Text PreprocessingCleaning and preparation are crucial for many tasks, and NLP is no exception. Text
preprocessing is usually the first step you'll take when faced with an NLP task. - answer
Without preprocessing, your computer interprets "the", "The", and "<p>The" as entirely
different words.
There is a LOT you can do here, depending on the formatting you need. Lucky for you,
Regex and NLTK will do most of it for you! Common tasks include: - answer Noise
removal — stripping text of formatting (e.g., HTML tags)
Noise removal - answer stripping text of formatting (e.g., HTML tags)
Tokenization - answer breaking text into individual words.
Normalization - answer cleaning text data in any other way:
Stemming - answer Stemming is a blunt axe to chop off word prefixes and suffixes.
"booing" and "booed" become "boo", but "sing" may become "s" and "sung" would
remain "sung."
Lemmatization - answer Lemmatization is a scalpel to bring words down to their root
forms. For example, NLTK's savvy lemmatize knows "am" and "are" are related to "be."
Other common tasks include lowercasing, punctuation removal, stopwords removal,
spelling correction, etc. - answer Other common tasks include lowercasing, punctuation
removal, stop words removal, spelling correction, etc.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller julianah420. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £11.09. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67474 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now