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How Big Data Analysis helped increase Walmarts Sales turnover?

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Use market basket analysis to classify shopping trips Walmart Data Analyst Interview Questions Walmart Hadoop Interview Questions Walmart Data Scientist Interview Question American multinational retail giant Walmart collects 2.5 petabytes of unstructured data from 1 million customers every hour. How Walmart uses Big Data?

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Hadoop MapReduce vs. Apache Spark Who Wins the Battle?

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Hadoop and Spark are popular apache projects in the big data ecosystem. Apache Spark is an improvement on the original Hadoop MapReduce component of the Hadoop big data ecosystem. With Apache Spark, you can write collection-oriented algorithms using Scala's functional programming language.

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