Title : Ontology Versioning and Effect Space
| Presenter | Zhisheng Huang |
| Abstract | Ontology versioning provides a mechanism to keep track of the ontology evolution. In this talk, we propose a framework to examine and evaluate ontology versioning and ontology changes. We propose the notion of effect space to measure ontology changes and their effect quantitatively. The approach of the effect space has been used to analyze SEKT legal ontologies and the Dutch general election data 2006 (Wouter's data). This talk discusses how the notion of the effect space can be used for the analysis. |
Title : Extending SWI-Prolog with n-dimensional spatial indexing
| Presenter | Willem van Hage |
| Abstract | In the Poseidon project we need to do real-time reasoning about maritime objects. We would like to combine graph, subsumption, space, and time reasoning. The ClioPatria semantic-web application platform provides fast graph and subsumption reasoning in SWI-Prolog. To make real-time spatial reasoning possible on realistic data sets we have to extend SWI-Prolog with spatial indexing of atoms. This talk will give some background information about the problem, but will mostly be about my ongoing implementation work. |