The VOSviewer

From the website: VOSviewer is a software tool for constructing and visualizing bibliometric networks. These networks may for instance include journals, researchers, or individual publications, and they can be constructed based on citation, bibliographic coupling, co-citation, or co-authorship relations. VOSviewer also offers text mining functionality that can be used to construct and visualize co-occurrence networks of important terms extracted from a body of scientific literature.

A Geology Joke!

 

Big Data

What is Big Data? Here is a nice & practical 'definition': Big data is a dataset that is too big to be processed using MS Excel. The term 'big' can mean a variety of things: size/volume (of course),  but also update frequency (real-time maybe), containing a variety of data types, and dimensionality.