Egger, MarcLang, André2018-01-082018-01-0820132013https://dl.gi.de/handle/20.500.12116/11330In this brief tutorial, we provide an overview of investigating text-based user-generated content for information that is relevant in the corporate context. We structure the overall process along three stages: collection, analysis, and visualization. Corresponding to the stages we outline challenges and basic techniques to extract information of different levels of granularity.Information extractionNatural language processingOpinion miningText miningWeb miningText/Journal Article1610-1987