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 K-means
MLlib also includes a streaming version of K-means clustering; this is called StreamingKMeans. This model is an extension of the mini-batch K-means algorithm where the model is updated with each batch based on a combination between the cluster centers computed from the previous batches and the cluster centers computed for the current batch.
StreamingKMeans supports a forgetfulness parameter alpha (set using the setDecayFactor method); this controls how aggressive the model is in giving weight to newer data. An alpha value of 0 means the model will only use new data, while with an alpha value of 1, all data since the beginning of the streaming application will be used.
We will not cover streaming K-means further here (the ...
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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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.