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  • Book Overview & Buying Apache Spark 2.x Cookbook
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Apache Spark 2.x Cookbook

Apache Spark 2.x Cookbook

By : Yadav
3.3 (3)
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Apache Spark 2.x Cookbook

Apache Spark 2.x Cookbook

3.3 (3)
By: Yadav

Overview of this book

While Apache Spark 1.x gained a lot of traction and adoption in the early years, Spark 2.x delivers notable improvements in the areas of API, schema awareness, Performance, Structured Streaming, and simplifying building blocks to build better, faster, smarter, and more accessible big data applications. This book uncovers all these features in the form of structured recipes to analyze and mature large and complex sets of data. Starting with installing and configuring Apache Spark with various cluster managers, you will learn to set up development environments. Further on, you will be introduced to working with RDDs, DataFrames and Datasets to operate on schema aware data, and real-time streaming with various sources such as Twitter Stream and Apache Kafka. You will also work through recipes on machine learning, including supervised learning, unsupervised learning & recommendation engines in Spark. Last but not least, the final few chapters delve deeper into the concepts of graph processing using GraphX, securing your implementations, cluster optimization, and troubleshooting.
Table of Contents (13 chapters)
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Doing binary classification using SVM


Classification is a technique to put data into different classes based on its utility. For example, an e-commerce company can apply two labels, namely will buy or will not buy, to the potential visitors.

This classification is done by providing some already labeled data to machine-learning algorithms called training data, as you know already. The challenge is how to mark the boundary between the two classes. Let's take a simple example, as shown in the following figure:

In the preceding case, we designated gray and black to the "will not buy" and "will buy" labels, respectively. Here, drawing a line between the two classes is easy, as follows:

Is this the best we can do? Not really. Let's try to do a better job. The black classifier is not really equidistant from the will buy and will not buy carts. Let's make a better attempt:

This looks good, doesn't it? This, in fact, is what the SVM algorithm does. You can see in the preceding diagram that there are...

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Apache Spark 2.x Cookbook
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