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We present a benchmark that facilitates the evaluation of DAML+OIL repositories in a standard and systematic way. This benchmark is intended to evaluate the performance of DAML+OIL repositories with respect to extensional queries over a large data set that commits to a single realistic ontology. It consists of the ontology, customizable synthetic data, a set of test queries, and several performance...
We describe DAMLJessKB, a tool for reasoning with the DARPA Agent Markup Language (DAML) and performing inference on the Semantic Web. DAMLJessKB maps DAML’s semantics into facts and rules for use in a production system, such as the Java Expert System Shell (Jess). This article presents our underlying methodology and provides a detailed example of how DAMLJessKB can be used to make decisions about...
The semantic web is a promising application-area for the Prolog programming language for its non-determinism and pattern-matching. In this paper we outline an infrastructure for loading and saving RDF/XML, storing triples, elementary reasoning with triples and visualization. A predecessor of the infrastructure described here has been used in various applications for ontology-based annotation of multimedia...
This paper discusses issues that surround the provision of application support using OWL ontologies. It presents the OWL API, a high-level programmatic interface for accessing and manipulating OWL ontologies. We discuss the underlying design issues and illustrate possible solutions to technical issues occurring in systems that intend to support the OWL standard. Although the context of our solutions...
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