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Aufsatz
Neue Medien und Hochschule: Nach der Euphorie
(2002)
Vortragsfolien eines eingeladenen Vortrags auf der 58. Jahrestagung Bundesverband Deutscher Stiftungen am 16.05.2002 in Hamburg.
Das Thema der Jahrestagung war „Stiftungen in der Wissensgesellschaft“. Der Vortrag geht in kurzer und unterhaltsamer Form auf Vorstellungen und Hoffnungen der Wissensvermittlung mittels E-Learning ein. Stiftungen waren ganz wesentlich an der Gründung der Informatik in Kassel beteiligt, was im Vortrag auch gestreift wird.
Aufsatz
Gone with the internet - How the old education was lost
(2015-04-08)
Despite its young history, Computer Science Education has seen a number of "revolutions". Being a
veteran in the field, the author reflects on the many changes he has seen in computing and its teaching.
The intent of this personal collection is to point out that most revolutions came unforeseen and that
many of the new learning initiatives, despite high financial input, ultimately failed.
The author then considers the current revolution (MOOC, inverted lectures, peer instruction, game
design) and, based on the ...
Aufsatz
Hierarchies of conceptual scales
(1999)
Formal Concept Analysis allows to derive conceptual hierarchies from data tables. Formal Concept Analysis is applied in various domains, e.g., data analysis, information retrieval, and knowledge discovery in databases. In order to deal with increasing sizes of the data tables (and to allow more complex data structures than just binary attributes), conceputal scales habe been developed. They are considered as metadata which structure the data conceptually. But in large applications, the number of conceptual scales ...
Aufsatz
On-line analytical processing with conceptual information systems
(1998)
A conceptual information system consists of a database together with conceptual hierarchies. The management system TOSCANA visualizes arbitrary combinations of conceptual hierarchies by nested line diagrams and allows an on-line interaction with a database to analyze data conceptually. The paper describes the conception of conceptual information systems and discusses the use of their visualization techniques for on-line analytical processing (OLAP).