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mapreduce example for simple random sampling of data

June, 2017 adarsh Leave a comment

In simple random sampling (SRS), we want to grab a subset of our larger data set in which each record…

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Posted in: Data Analytics, Map Reduce Filed under: map reduce, map reduce design pattern, mapreduce filtering patterns

mapreduce example to filter data

adarsh Leave a comment

Filtering serves as an abstract pattern for some of the other patterns. Filtering simply evaluates each record separately and decides,…

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Posted in: Data Analytics, Map Reduce Filed under: map reduce, map reduce design pattern, mapreduce filtering patterns

mapreduce count example using mapreduce frameworks counters utility

June, 2017 adarsh Leave a comment

A count or summation can tell you a lot about particular fields of data, or your data as a whole.…

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Posted in: Data Analytics, Map Reduce Filed under: map reduce, map reduce design pattern, mapreduce numerical summarization pattern

mapreduce example to find the inverted index of a sample

adarsh Leave a comment

Inverted index pattern is used to generate an index from a data set to allow for faster searches or data…

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Posted in: Data Analytics, Map Reduce Filed under: map reduce, map reduce design pattern, mapreduce numerical summarization pattern

mapreduce example for calculating standard deviation and median on a sample data

June, 2017 adarsh 11d Comments

A standard deviation shows how much variation exists in the data from the average, thus requiring the average to be…

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Posted in: Data Analytics, Map Reduce Filed under: map reduce, map reduce design pattern, mapreduce numerical summarization pattern

mapreduce pattern for calculating average of a sample

adarsh 5d Comments

Problem to Solve : Given a list of employees with there department and salary find the average salary in each…

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Posted in: Data Analytics, Map Reduce Filed under: map reduce, map reduce design pattern, mapreduce numerical summarization pattern

mapreduce pattern for calculating minimum,maximum and count

June, 2017 adarsh Leave a comment

Numerical Summarizations is a map reduce pattern which can be used to find minimum, maximum, average, median, and standard deviation…

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Posted in: Data Analytics, Map Reduce Filed under: map reduce, map reduce design pattern, mapreduce numerical summarization pattern

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