July 2018
Intermediate to advanced
474 pages
13h 37m
English
book
Apache Spark Deep Learning Cookbook
by Ahmed Sherif, Amrith Ravindra, Michal Malohlava, Adnan Masood
Content preview from Apache Spark Deep Learning Cookbook
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How to do it...
The following section walks through the following steps to evaluate model performance:
- Execute the following script to create a confusion matrix from the predictDF dataframe:
predictDF.crosstab('prediction', 'label').show().
- Calculate an accuracy score based on our 24 test images of Ronaldo and Messi by executing the following script:
from pyspark.ml.evaluation import MulticlassClassificationEvaluatorscoring = predictDF.select("prediction", "label")accuracy_score = MulticlassClassificationEvaluator(metricName="accuracy")rate = accuracy_score.evaluate(scoring)*100print("accuracy: {}%" .format(round(rate,2))).
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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.