industrial diversity correlates with population

It seems logical that U.S. counties having greater populations would support more diverse industry than counties having lesser population. Perhaps this has been proven already, but I recently stumbled upon my own verification of the idea: The above plot shows industry diversity (expressed in the form of Shannon entropy, discussed below) as a function of […]

test driving Amazon Web Services’ Elastic MapReduce

Hadoop provides software infrastructure for running MapReduce tasks, but it requires substantial setup time and availability of a compute cluster to take full advantage of. Amazon’s Elastic MapReduce (EMR) solves these problems; delivering pre-configured Hadoop virtual machines running on the cloud for only the time they are required, and billing only for the computation minutes […]