April 2017
Intermediate to advanced
532 pages
12h 39m
English
book
Machine Learning with Spark - Second Edition
by Rajdeep Dua, Brian O'Neill, Stephen Boesch, Manpreet Singh Ghotra, Nick Pentreath
Content preview from Machine Learning with Spark - Second Edition
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Using packages for feature extraction
While from these common tasks each and every time. Certainly, we can create our own reusable code libraries for this purpose; however, fortunately, we can rely on the existing tools and packages. Since Spark supports Scala, Java, and Python bindings, we can use packages available in these languages that provide sophisticated tools to process and extract features and represent them as vectors. A few examples of packages for feature extraction include scikit-learn, gensim, scikit-image, matplotlib, and NLTK in Python, OpenNLP in Java, and Breeze and Chalk in Scala. In fact, Breeze has been part of Spark MLlib since version 1.0, and we will see how to use some Breeze functionality for linear algebra in the ...
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