Ontobroker: Ontology Based Access to the WWW
Institute AIFB, University of Karlsruhe, Germany
on sabbatical at the InfoLab, Stanford University
The World Wide Web (WWW) is currently one of the most important
electronic information sources. However, its query functionality and the
provided reasoning services are rather limited.
Ontobroker consists of a number of languages and tools that enhance
query access and inference service in the WWW. It provides languages to
annotate Web documents with ontological information, to represent
ontologies and to formulate queries based on these ontologies.
Ontobroker allows to access directly the Web information you are
interested in and to infer new knowledge with an inference engine based
on techniques from logic programming. This talk uses examples from the
'Knowledge Annotation Initiative of the Knowledge Acquisition Community'
to illustrate these languages and tools and the kind of services that
The Ontobroker system is available on the Web.
The Ontobroker system was developed jointly with Stefan Decker, Michael
Erdmann and Dieter Fensel.
From January 1977 to June 1985 Rudi Studer worked as a research
scientist at the University of Stuttgart. From July 1985 till October
1989 he was project leader and manager at IBM Germany Scientific Centre,
Institute of Knowledge Based Systems. Since November 1989 he has been
full professor in Applied Computer Science at the University of
Karlsruhe. He received his Doctor's degree in Mathematics and Computer
Science from the University of Stuttgart in 1982. His research interests
include Knowledge Engineering, Knowledge Discovery in Databases and