The OWLGrEd Ontology Visualizer is an online tool for visualizing OWL ontologies using a compact UML-based notation. This paper describes the implementation of the OWLGrEd Ontology Visualizer which consists of a web-based user interface, the graph (visualization) generation component, the layout component and the graph rendering and sharing component. The paper concludes with a list of future d...

We present an approach to reasoning with strict and defeasible rules over literals. A controlled natural language is employed as human/machine interface to facilitate the specification of knowledge and verbalization of results. Reasoning on the rules is done by a direct semantics that addresses several issues for current approaches to argumentation-based defeasible reasoning. Techniques from fo...

In this paper we introduce Spartiqulation, a system that translates SPARQL queries into English text. Our aim is to allow casual end users of semantic applications with limited to no expertise in the SPARQL query language to interact with these applications in a more intuitive way. The verbalization approach exploits domain-independent template-based natural language generation techniques, as w...

BACKGROUND A number of reports showed en encouraging remediation in some patients' executive deficits thanks to the use of 'information processing strategies'. Moreover the impact of antipsychotics on cognitive functions of the schizophrenics is an important issue, especially if an integrated psychosocial treatment is needed. The aim of this paper is to evaluate different executive performance ...