Eric Schwarzkopf

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We revisit the top-level ontology Gumo for the uniform management of user and context models in a semantic web environment. We discuss design decisions, while putting the focus on ontological issues. The structural integration into user model servers, especially into the U2M-UserModel&ContextService, is also presented. We show ubiquitous applications using(More)
We propose an approach for using data from a social tagging application like del.icio.us as a basis for user adaptation. We discuss several algorithms for mining taxonomies of tags from tag spaces. The mined taxonomy can be used to define adaptation rules that determine how to adapt a system to a user given the user's personal tag space. The contributions(More)
The paper describes a set of approaches for representing and access-ing information within a semantically structured information portal, while offering the possibility to integrate own information. It discusses research performed within the project 'Semantic Methods and Tools for Information Portals (SemI-Port)'. In particular, it focuses on (1) the(More)