Carlos: A clarification request. Social Data Mining is an application domain for data mining. Big Data refers to the kind of data being mined in some domain -- a term used to denote data volume, data velocity, data variety and such. So, if the data you have from the 4 societies qualifies as Big Data (which, to begin with, is a loose term denoting the 3 V's (some people also add a fourth V -- Data Veracity), then you are dealing with Big Data. Since you are dealing with societal data, you are also dealing with Social Data Mining. Neither is a technique -- an appropriate technique or techniques for mining Big Societal Data is a different issue, I think. Or am I misunderstanding your query?

You can start with this example: https://github.com/cloudera/cdh-twitter-example

GK

http://gopalakrishna.palem.in/