Hadoop sampling

Hadoop sampling

http://stackoverflow.com/questions/7313788/how-to-start-learning-hadoop

http://had00b.blogspot.com/2013/07/random-subset-in-mapreduce.html

http://stackoverflow.com/questions/11189581/implementing-sampling-data-mining-algorithms-in-hadoop

http://infolab.stanford.edu/~echang/recsys08-69.pdf

http://blog.cloudera.com/blog/2013/04/hadoop-stratified-randosampling-algorithm/