Networks of SOU Words (image) Columbia University Share Print E-Mail Caption Researchers used computational techniques to map recurring words and their relation to each other across 224-years of State of the Union remarks. Viewed as a network, the words point to common themes and disruptions in political discourse. Credit Courtesy of the authors Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.