TY - GEN
T1 - An approach to comparing different ontologies in the context of hydrographical information
AU - Vilches-Blazquez, L. M.
AU - Ramos, J. A.
AU - Lopez-Pellicer, F. J.
AU - Corcho, O.
AU - Nogueras-Iso, J.
PY - 2009
Y1 - 2009
N2 - Geographical Information is increasingly captured, managed, and updated by different cartographic agencies. This information presents different structures and variable levels of granularity and quality. In practice, such heterogeneity causes the building up of multiple sets of geodata with different underlying models and schemas that have different structures and semantics. Ontologies are a proposal widely used for solving heterogeneity and a way of achieving the data harmonization and integration that Geographical Information Systems (GIS) and Special Data Infrastructures (SDI) need.This paper presents three hydrographical ontologies (which are built using top-down and bottom-up approaches) and an approach for comparing them; the goal of this approach is to prove which ontologies have a better coverage of the domain. In order to compare the resultant ontologies, six qualitative facets have been studied: sources used (amount, richness, and consensus), reliability of building approaches (community extending use, recommend-dations), ontology richness (number and types of components), formalization (language), granularity (scale factor), and the design criteria followed.
AB - Geographical Information is increasingly captured, managed, and updated by different cartographic agencies. This information presents different structures and variable levels of granularity and quality. In practice, such heterogeneity causes the building up of multiple sets of geodata with different underlying models and schemas that have different structures and semantics. Ontologies are a proposal widely used for solving heterogeneity and a way of achieving the data harmonization and integration that Geographical Information Systems (GIS) and Special Data Infrastructures (SDI) need.This paper presents three hydrographical ontologies (which are built using top-down and bottom-up approaches) and an approach for comparing them; the goal of this approach is to prove which ontologies have a better coverage of the domain. In order to compare the resultant ontologies, six qualitative facets have been studied: sources used (amount, richness, and consensus), reliability of building approaches (community extending use, recommend-dations), ontology richness (number and types of components), formalization (language), granularity (scale factor), and the design criteria followed.
KW - Comparison
KW - Data harmonization and integration
KW - Geographical information
KW - Heterogeneity
KW - Hydrographical ontologies
KW - Top-down and bottom-up approach
UR - http://www.scopus.com/inward/record.url?scp=84863215159&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-00304-2_13
DO - 10.1007/978-3-642-00304-2_13
M3 - Contribución a la conferencia
AN - SCOPUS:84863215159
SN - 9783642003035
T3 - Lecture Notes in Geoinformation and Cartography
SP - 193
EP - 207
BT - Information Fusion and Geographic Information Systems - Proceedings of the 4th International Workshop, IF and GIS 2009
PB - Kluwer Academic Publishers
T2 - 4th International Workshop on Information Fusion and Geographic Information Systems, IF and GIS 2009
Y2 - 17 May 2009 through 20 May 2009
ER -