Data Munging with Hadoop PDF (Adobe DRM) download by Ofer Mendelevitch

Data Munging with Hadoop

Addison Wesley Professional
Publication date: November 2015
ISBN: 9780134435503
Digital Book format: PDF (Adobe DRM)

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The Example-Rich, Hands-On Guide to Data Munging with Apache HadoopTM Data scientists spend much of their time “munging” data: handling day-to-day tasks such as data cleansing, normalization, aggregation, sampling, and transformation. These tasks are both critical and surprisingly interesting. Most important, they deepen your understanding of your data’s structure and limitations: crucial insight for improving accuracy and mitigating risk in any analytical project. Now, two leading Hortonworks data scientists, Ofer Mendelevitch and Casey Stella, bring together powerful, practical insights for effective Hadoop-based data munging of large datasets. Drawing on extensive experience with advanced analytics, the authors offer realistic examples that address the common issues you’re most likely to face. They describe each task in detail, presenting example code based on widely used tools such as Pig, Hive, and Spark. This concise, hands-on eBook is valuable for every data scientist, data engineer, and architect who wants to master data munging: not just in theory, but in practice with the field’s #1 platform–Hadoop. Coverage includes A framework for understanding the various types of data quality checks, including cell-based rules, distribution validation, and outlier analysis Assessing tradeoffs in common approaches to imputing missing values Implementing quality checks with Pig or Hive UDFs Transforming raw data into “feature matrix” format for machine learning algorithms Choosing features and instances Implementing text features via “bag-of-words” and NLP techniques Handling time-series data via frequency- or time-domain methods Manipulating feature values to prepare for modeling Data Munging with Hadoop is part of a larger, forthcoming work entitled Data Science Using Hadoop. To be notified when the larger work is available, register your purchase of Data Munging with Hadoop at informit.com/register and check the box “I would like to hear from InformIT and its family of brands about products and special offers.”
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Data Munging with Hadoop PDF (Adobe DRM) download by Ofer Mendelevitch
Addison Wesley Professional, November 2015
ISBN: 9780134435503
EAN:  9780134435503
PDF (Adobe DRM)
List Price: $9.99 eBook price: $8.99
Data Munging with Hadoop ePub (Adobe DRM) download by Ofer Mendelevitch
Addison Wesley Professional, November 2015
ISBN: 9780134435510
EAN:  9780134435510
ePub (Adobe DRM)
List Price: $9.99 eBook price: $8.99
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