Franz, Thomas
F -- A Model of Events based on the Foundational Ontology DOLCE+DnS Ultralite
Scherp, Ansgar, Franz, Thomas, Saathoff, Carsten, Staab, Steffen
The lack of a formal model of events hinders interoperability in distributed event-based systems. In this paper, we present a formal model of events, called Event-Model-F. The model is based on the foundational ontology DOLCE+DnS Ultralite (DUL) and provides comprehensive support to represent time and space, objects and persons, as well as mereological, causal, and correlative relationships between events. In addition, the Event-Model-F provides a flexible means for event composition, modeling event causality and event correlation, and representing different interpretations of the same event. The Event-Model-F is developed following the pattern-oriented approach of DUL, is modularized in different ontologies, and can be easily extended by domain specific ontologies.
LENA-TR : Browsing Linked Open Data Along Knowledge-Aspects
Franz, Thomas (University of Koblenz-Landau) | Koch, Jörg (University of Koblenz-Landau) | Dividino, Renata (University of Koblenz-Landau) | Staab, Steffen (University of Koblenz-Landau)
Browsing linked open data (LOD) is a promising, yet, often unsatisfactory experience today. User-support for the identification of relevant information within the fast-growing cloud of LOD is limited. This paper presents LENA-TR, a browser for LOD that highlights relevant information with respect to different knowledge aspects hidden in linked data. Its interpretation of faceted navigation facilitates the sense-making and browsing of LOD, solving many of the shortcomings experienced in LOD browsing today.