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Alternative options of using processing knowledge to populate ontologies for the recognition of urban concepts


Lüscher, P; Weibel, Robert; Burghardt, D (2008). Alternative options of using processing knowledge to populate ontologies for the recognition of urban concepts. In: 11th ICA Workshop on Generalisation and Multiple Representation, Montpellier, France, 20 June 2008 - 21 June 2008, 1-15.

Abstract

In this paper, we present an ontology-driven approach for cartographic pattern recognition in support of map generalisation. Spatial patterns are formalised by means of ontologies which are then used to deductively trigger appropriate low level pattern recognition techniques. Modelling ontologies suited for spatial pattern recognition is discussed by example of an ontology of terraced houses. The paper subsequently focuses on approaches for inferring the instances of higher level concepts. Three different approaches are employed to detect terraced houses in Ordnance Survey MasterMap® vector data: Weighted summation; Joint Bayes classifier; and Support Vector Machines. An evaluation by comparison to a manual classification reveals that weighted summation and the Joint Bayes classifier both have satisfactory prediction accuracy, but the Joint Bayes classifier has advantages when considering the calibration effort involved. In conclusion, we claim that the ontology-driven approach better captures the complex structure of spatial patterns and provides enhanced transparency and flexibility of the pattern recognition process in comparison to conventional, purely geometric and/or statistical techniques.

In this paper, we present an ontology-driven approach for cartographic pattern recognition in support of map generalisation. Spatial patterns are formalised by means of ontologies which are then used to deductively trigger appropriate low level pattern recognition techniques. Modelling ontologies suited for spatial pattern recognition is discussed by example of an ontology of terraced houses. The paper subsequently focuses on approaches for inferring the instances of higher level concepts. Three different approaches are employed to detect terraced houses in Ordnance Survey MasterMap® vector data: Weighted summation; Joint Bayes classifier; and Support Vector Machines. An evaluation by comparison to a manual classification reveals that weighted summation and the Joint Bayes classifier both have satisfactory prediction accuracy, but the Joint Bayes classifier has advantages when considering the calibration effort involved. In conclusion, we claim that the ontology-driven approach better captures the complex structure of spatial patterns and provides enhanced transparency and flexibility of the pattern recognition process in comparison to conventional, purely geometric and/or statistical techniques.

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Additional indexing

Item Type:Conference or Workshop Item (Paper), refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Geography
Dewey Decimal Classification:910 Geography & travel
Uncontrolled Keywords:cartographic databases, ontologies, spatial data enrichment, pattern recognition, building types
Language:English
Event End Date:21 June 2008
Deposited On:24 Oct 2008 07:37
Last Modified:05 Apr 2016 12:29
Official URL:http://ica.ign.fr/montpellier2008/papers/22_Luescher.pdf
Related URLs:http://ica.ign.fr/montpellier2008/workshop.php (Organisation)
http://ica.ign.fr/montpellier2008/presentations/22pres.pdf
Permanent URL: https://doi.org/10.5167/uzh-4284

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