Download Apache Mahout Cookbook by Piero Giacomelli PDF

By Piero Giacomelli

A quick, clean, developer-oriented dive into the realm of Mahout

Overview

  • Learn easy methods to organize a Mahout improvement environment
  • Start trying out Mahout in a standalone Hadoop cluster
  • Learn to discover inventory industry path utilizing logistic regression
  • Over 35 recipes with real-world examples to assist either expert and the non-skilled builders get the hold of the several positive aspects of Mahout

In Detail

The upward push of the net and social networks has created a brand new call for for software program which can learn huge datasets which could scale as much as 10 billion rows. Apache Hadoop has been created to deal with such heavy computational initiatives. Mahout received acceptance for offering facts mining category algorithms that may be used with such form of datasets.

"Apache Mahout Cookbook" presents a clean, scope-oriented method of the Mahout global for either newbies in addition to complicated clients. The e-book offers an perception on tips on how to write various info mining algorithms for use within the Hadoop setting and select the easiest one suiting the duty in hand.

"Apache Mahout Cookbook" appears on the numerous Mahout algorithms on hand, and offers the reader a clean solution-centered procedure on find out how to clear up diversified info mining initiatives. The recipes begin effortless yet get steadily complex. A step by step procedure will advisor the developer within the assorted projects concerned about mining an important dataset. additionally, you will the best way to code your Mahout’s information mining set of rules to figure out the simplest one for a specific job. Coupled with this, a complete bankruptcy is devoted to loading facts into Mahout from an exterior RDMS procedure. loads of recognition has additionally been wear utilizing your facts mining set of rules within your code on the way to manage to use it in an Hadoop atmosphere. Theoretical features of the algorithms are coated for info reasons, yet each bankruptcy is written to permit the developer to get into the code as fast and easily as attainable. which means with each recipe, the ebook offers the code for reusing it utilizing Maven in addition to the Maven Mahout resource code.

By the tip of this publication it is possible for you to to code your process to do a variety of information mining projects with varied algorithms and to guage and select the easiest ones in your tasks.

What you are going to research from this book

  • Configure from scratch a whole improvement surroundings for Mahout with NetBeans and Maven
  • Handle sequencefiles for larger performance
  • Query and shop effects into an RDBMS procedure with SQOOP
  • Use logistic regression to foretell the subsequent step
  • Understand textual content mining of uncooked info with Naïve Bayes
  • Create and comprehend clusters
  • Customize Mahout to guage various cluster algorithms
  • Use the mapreduce method of resolve actual global facts mining problems

Approach

"Apache Mahout Cookbook" makes use of over 35 recipes choked with illustrations and real-world examples to assist newbies in addition to complex programmers get accustomed to the beneficial properties of Mahout.

Who this booklet is written for

"Apache Mahout Cookbook" is excellent for builders who are looking to have a clean and quick advent to Mahout coding. No prior wisdom of Mahout is needed, or even expert builders or process directors will enjoy the a variety of recipes presented.

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Additional resources for Apache Mahout Cookbook

Example text

Dat file, which is the one that will be used, you should see the following lines: UserID::MovieID::Vote::datetime 1::1193::5::978300760 1::661::3::978302109 1::914::3::978301968 For every line you have a movie rating that can be interpreted as follows: user 1 gave a vote of 5 (out of 5) to the movie One Flew Over the Cuckoo's Nest and gave a vote of 3 to James and the Giant Peach and to My Fair Lady. The last long number is the long date/time of the rating itself. 19 Mahout is Not So Difficult!

We are now ready for the interesting phase that is the Mahout source-code compilation from NetBeans. Now that we have NetBeans installed, we are ready to compile Mahout's latest snapshot using NetBeans. How to do it... 8. We invite the reader to follow the releases because apart from bug fixes, new algorithms and features that arrive are constantly being released by this vibrant community. 1. We need to download the Mahout sources from Subversion, import the Maven-related project into NetBeans, and finally install everything.

RDBMS 3 Consume Results To arrange the import/export, we will use Sqoop. Sqoop is another Apache software foundation project devoted to the specific task of interfacing the Hadoop ecosystem with external datasources and RDBMS. This tool is Java based and from the algorithm point of view, is MapReduce based. As you should have understood by now, reading data in parallel and using it in a distributed filesystem is different from a sequential access. This is because as we read a piece of data from RDBMS, the previously read pieces will be managed by other computational steps.

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