Jeffrey Breen is Vice President Solutions for Think Big Analytics, a Teradata company. Jeffrey has over 20 years of hands-on and leadership experience in IT, having served as the Chief Technology Officer of Yankee Group and the start-up Navient Corporation. Jeffrey is well known in the R community for his presentations and tutorials, and his method for mining Twitter for consumer sentiment is featured in Practical Text Mining and Statistical Analysis for Non-structured Text Data Applications from Elsevier. He holds an M.A. in Astronomy from the University of Virginia and a B.A. in Physics and Astronomy & Astrophysics from the University of Pennsylvania.