TopicExplorer: Exploring Document Collections with Topic Models. In Peter A. Flach, Tijl De Bie, and Nello Cristianini (Eds.), Machine Learning and Knowledge Discovery in Databases: European Conference, ECML PKDD 2012, Bristol, UK, September 24-28, 2012. Proceedings, Part II, 838--841, Springer Berlin Heidelberg, Berlin, Heidelberg, 2012. [PUMA: alexander data digital explorer halle hinneburg humanities informatik mining semantic software textcorpora topic topicexplorer uni web webanwendung] URL