The main focus of the research group Data & Knowledge Engineering is the development of methods for interactive information retrieval and exploration. Besides the design of adaptive user interfaces, one research topic is the development of methods to adapt a retrieval system dynamically to the needs and interests of the user. This involves the development of methods, that monitor and analyse the behaviour of individual users to obtain information about their needs and interests. This information will be used to reorganise the structure and the presentation of the considered document collection and search results in order to support users individually. In our offered courses we convey students a basic introduction in used technologies and offer manifold possibilities for collaboration in current research projects.