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Fast Data Processing with Spark 2

You're reading from   Fast Data Processing with Spark 2 Accelerate your data for rapid insight

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Product type Paperback
Published in Oct 2016
Publisher Packt
ISBN-13 9781785889271
Length 274 pages
Edition 3rd Edition
Languages
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Authors (2):
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Krishna Sankar Krishna Sankar
Author Profile Icon Krishna Sankar
Krishna Sankar
Holden Karau Holden Karau
Author Profile Icon Holden Karau
Holden Karau
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Toc

Table of Contents (13) Chapters Close

Preface 1. Installing Spark and Setting Up Your Cluster 2. Using the Spark Shell FREE CHAPTER 3. Building and Running a Spark Application 4. Creating a SparkSession Object 5. Loading and Saving Data in Spark 6. Manipulating Your RDD 7. Spark 2.0 Concepts 8. Spark SQL 9. Foundations of Datasets/DataFrames – The Proverbial Workhorse for DataScientists 10. Spark with Big Data 11. Machine Learning with Spark ML Pipelines 12. GraphX

Algorithms


Now we dive into the most interesting part of GraphX: algorithms and the graph parallel computation APIs to implement more algorithms. The following table shows a bird's eye view of the algorithms:

Type

GraphX method/example

Graph-Parallel Computation

The method is aggregateMessages(), Function

Pregel(). Refer to https://issues.apache.org/jira/browse/SPARK-5062 for examples.

PageRank

The method is PageRank(). As an example, refer to the influential papers in a citation network, Influencer in retweet. You can specifically check out the following:

staticPageRank(): This provides a static no of iterations and dynamic tolerance; see the parameters (tol versus numIter)

personalizedPageRank(): This is a variation of PageRank that gives a rank relative to a specified "source" vertex in the graph-People

You May Know ShortestPaths and SVD++

The methods are ShortestPaths() and SVD++. As an example, consider the fact that SDV++ takes an RDD of edges.

LabelPropagation (LPA...

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