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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Streaming regression
Spark provides a built-in streaming machine learning model in the StreamingLinearAlgorithm class. Currently, only a linear regression implementation is available-StreamingLinearRegressionWithSGD-but future versions will include classification.
The streaming regression model provides two methods for usage:
- trainOn: This takes DStream[LabeledPoint] as its argument. This tells the model to train on every batch in the input DStream. It can be called multiple times to train on different streams.
- predictOn: This also takes DStream[LabeledPoint]. This tells the model to make predictions on the input DStream, returning a new DStream[Double] that contains the model predictions.
Under the hood, the streaming regression model ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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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.