Gravitation and Fitness in Ontology Dynamics

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Gravitation and Fitness in Ontology Dynamics

Kolloquium Angewandte Informatik

The talk presents the theoretical framework for measuring how well an ontology fits the set of (changing) requirements in a Domain of Discourse. The idea is to borrow a plausible analogy of a “system law” from the field of Dynamics in Mechanics – the Newton’s Law of Universal Gravitation. This analogy is exploited for building the law of gravitation in dynamic systems comprising a Domain of Discourse and ontologies describing this domain. As ontology elements do not possess physical mass, this component of the gravi-tation law is substituted by the property of fitness of an ontology to the requirements of the knowledge stakeholders regarding the described domain. It is also argued in the talk that the implementation of the developed theoretical framework is feasible as the supporting techniques, including some software tools, already exist. As the examples of the relevant component methods and tools, the talk presents concisely the OntoElect methodology, Ontology Difference Visualizer, and Structural Difference Discovery Engine. These instruments help solve some practical problems in eliciting domain requirements, developing structur-al contexts for the requirements, generating the mappings between these structural contexts and the target ontology, computing increments and decrements of ontology fitness based on these mappings. The talk concludes that the presented framework has prospects to be applied practically for visualization and analy-sis of ontology changes in dynamics. Use cases for ontology refinement and anomaly detection are sug-gested for validation.

(Dr. Vadim Ermolayev)

Start: 26. Januar 2016 um 14:00
Ende: 26. Januar 2016 um 15:00

Im Gebäude 11.40, Raum: 253

Veranstaltung vormerken: (iCal)

Veranstalter: Forschungsgruppe(n) Web Science und Wissensmanagement
Information: Media:Ermolayev 26-01-2016.pdf