One slight hitch in the survey is that there appears to be no consensus on the definition of "big data." According to Revolution Analytics, some data scientists consider the "big data" threshold to be a terabyte, some say it's a petabyte, and some consider "big data" to be "just above what can be reasonably managed for any given job."
Now that's a flexible definition.
Few data scientists happy with current state of 'big data' analytics
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