Use qMC sequence to improve the accuracy of PiEstimator
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Key: HADOOP-4437
URL: https://issues.apache.org/jira/browse/HADOOP-4437
Project: Hadoop Core
Issue Type: Improvement
Components: examples
Reporter: Tsz Wo (Nicholas), SZE
Priority: Minor
Currently, PiEstimator uses java.util.Random to generate random 2d-points for
estimating pi. The numbers generated by java.util.Random are uniformly
distributed. The 2d-points generated tense to have clump and gap. So the
accuracy of the estimated pi is low. The accuracy can be improved by using a
quasi-Monte Carlo (qMC) sequence.
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