  This paper presents a system which creates and visualizes probabilistic
semantic links between concepts in a thesaurus and classes in a classification
system. For creating the links, we build on the Polylingual Labeled Topic Model
(PLL-TM). PLL-TM identifies probable thesaurus descriptors for each class in
the classification system by using information from the natural language text
of documents, their assigned thesaurus descriptors and their designated
classes. The links are then presented to users of the system in an interactive
visualization, providing them with an automatically generated overview of the
relations between the thesaurus and the classification system.
