[DL] KAON2 OWL Reasoner release

Pascal Hitzler hitzler at aifb.uni-karlsruhe.de
Wed Nov 2 17:34:43 CET 2005

***Now with DIG Interface***
***High-performance OWL DL reasoner***

The AIFB and the FZI Institute at the University of Karlsruhe, in 
cooperation with ontoprise GmbH, are pleased to announce KAON2 -- a new 
tool for management of OWL ontologies and reasoning.  The following 
functionalities are provided by the tool:

- KAON2 provides an integrated API for reading, writing, and management 
of OWL DL ontologies extended with SWRL rules. Currently, OWL RDF and 
OWL XML file formats are supported.

- KAON2 provides a built-in reasoner for OWL DL (except nominals and 
datatypes), extended with DL-safe subset of SWRL. (I.e. KAON2 fully 
supports SHIQ extended with DL-safe rules.)

Reasoning is based on novel algorithms, which reduce an OWL ontology to 
a (disjunctive) datalog program. These algorithms allow KAON2 to handle 
relatively large ontologies with high efficiency. Its performance 
compares favorably with other state-of-the-art OWL DL reasoners. 
Detailed performance evaluations will shortly be available at 

- KAON2 supports the answering of conjunctive queries expressed in SPARQL.

- KAON2 can be used either as a library from other applications,
or in server mode. In the latter case, KAON2 is started as a server 
process, and clients can connect to the server using appropriate APIs.

- KAON2 supports the DIG interface, and can therefore be used with 
ontology editors such as Protégé or OilEd.

- KAON2 can access information stored in relational databases based on 
mappings between ontology entities and database tables.

KAON2 is available free of charge for non-commercial usage. For download 
and more information about the tool, the supported formalisms and the 
reasoning algorithms, please visit the following Web page:


Please do not hesitate to contact us for further information about KAON2.

Boris Motik
Peter Haase
Pascal Hitzler
Rudi Studer

Dr. Pascal Hitzler
Institute AIFB, University of Karlsruhe, 76128 Karlsruhe
email: hitzler at aifb.uni-karlsruhe.de    fax: +49 721 608 6580
web:   http://www.pascal-hitzler.de   phone: +49 721 608 4751

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