January 2019
Intermediate to advanced
378 pages
8h 27m
English
book
Python Machine Learning Blueprints - Second Edition
by Alexander Combs, Saurabh Chhajed, Michael Roman
Content preview from Python Machine Learning Blueprints - Second Edition
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Basics of Natural Language Processing
If machine learning models only operate on numerical data, how can we transform our text into a numerical representation? That is exactly the focus of Natural Language Processing (NLP). Let's take a brief look at how this is done.
We'll begin with a small corpus of three sentences:
- The new kitten played with the other kittens
- She ate lunch
- She loved her kitten
We'll first convert our corpus into a bag-of-words (BOW) representation. We'll skip preprocessing for now. Converting our corpus into a BOW representation involves taking each word and its count to create what's called a term-document matrix. In a term-document matrix, each unique word is assigned to a column, and each document is assigned to ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.