Search Engine (IMAGE) Bielefeld University Caption In just seconds, digital systems should be able to evaluate millions of documents, such as online discussions on controversial topics like the Transatlantic Trade and Investment Partnership (TTIP). Journalists or survey researchers could then draw on this new information. Credit Photo: CITEC/Bielefeld University. Usage Restrictions The image may only be used with appropriate caption or credit. License Licensed content 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.