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| Artikel-Nr.: 858A-9783540235583 Herst.-Nr.: 9783540235583 EAN/GTIN: 9783540235583 |
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| This section gives a description of notions used throughout this study. Current achievements in developing action-centered ontologies are also discussed. 2.1 Ontologies In the context of information extraction and retrieval, different kinds of ontologies can be distinguished [15]: o Top-level ontologies describe very general concepts like space and time, not depending on a particular domain, o Domain ontologies and task ontologies describe the vocabulary related to a generic domain or kind of task, detailing the terms used in the top-level ontology, o Application ontologies describe the concepts that depend on the particular domain and task within a specific activity. Several investigations have been conducted to bring actions (tasks) to bear on - tologies. Among them are Chandrasekaran et al. [6] and Mizoguchi et al. [23] in the fields of AI and Knowledge Engineering. For the geospatial domain, Kuhn [21] and Raubal and Kuhn [26] have attempted to support human actions in ontologies for transportation. Acknowledging the importance of human actions in the geographic domain, a research workshop was held in 2002, bringing together experts from diff- ent disciplines to share the knowledge and work on this issue [1]. Camara [5], one of the workshop participants, has proposed that action-driven spatial ontologies are formed via category theory, for the case of emergency action plans. Weitere Informationen: | | Author: | Max J. Egenhofer; Christian Freksa; Harvey J. Miller | Verlag: | Springer Berlin | Sprache: | eng |
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| Weitere Suchbegriffe: Geoinformationssystem - GIS, Informationssystem / Geoinformationssystem, 3D, ArcView, GIS, Geoinformationssysteme, algorithms, geographic data, geographic information proceeding, geographic information retrival, geographic information systems |
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