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Natural Language Processing

552 learners

Collecting and Preparing Textual Data for Classification

Learn how to collect and prepare specific textual datasets essential for your text classification project. You'll delve into the practices of gathering and cleaning text data, and explore advanced textual processing techniques.

NLTK

Python

Scikit-learn

See path

5 lessons

25 practices

5 hours

Text Data Collection and Preparation

Lessons and practices

Lesson 1: Introduction to Textual Data Collection in NLP

Explore More of the 20 Newsgroups Dataset

Uncover the End of 20 Newsgroups Dataset

Fetch Specific Categories from Dataset

Fetching the Third Article from Dataset

Exploring Text Length in Newsgroups Dataset

Lesson 2: Mastering Text Cleaning for NLP: Techniques and Applications

Update String and Clean Text

Filling in Python Functions and Regex Patterns

Mastering Text Cleaning with Python Regex

Implement Text Cleaning on Dataset

Mastering Text Cleaning with Python Regex on a Dataset

Lesson 3: Removing Stop Words and Stemming in Text Preprocessing

Switch from LancasterStemmer to PorterStemmer

Removing Stop Words and Punctuation from Text

Stemming Words with PorterStemmer

Implementing Stopword Removal and Stemming Function

Cleaning and Processing the First Newsgroup Article

Lesson 4: Unleashing the Power of n-grams in Text Classification

Generating Bigrams and Trigrams with NLP

Generating Bigrams and Trigrams from Text Data

Generating Bigrams and Trigrams from Two Texts

Creating Bigrams from Preprocessed Text Data

Unigrams and Bigrams from Clean 20 Newsgroups Dataset

Lesson 5: Understanding Named Entity Recognition in NLP

Changing the Sentence for Named Entity Recognition

Implementing Tokenization and POS Tagging

Applying Named Entity Recognition to a Sentence

Implementing a Named Entity Extraction Function

Applying NER and POS Tagging to Dataset

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