Back to Search
Start Over
Ontology‐based retrieval of geographic information
- Source :
- International Journal of Geographical Information Science. 20:233-260
- Publication Year :
- 2006
- Publisher :
- Informa UK Limited, 2006.
-
Abstract
- Discovering and accessing suitable geographic information (GI) in the open and distributed environments of current Spatial Data Infrastructures (SDIs) is a crucial task. Catalogues provide searchable repositories of information descriptions, but the mechanisms to support GI retrieval are still insufficient. Problems of semantic heterogeneity caused by the ambiguity of natural language can arise during keyword‐based search in catalogues and when formulating a query to access the discovered data. In this paper, we present an approach to ontology‐based GI retrieval that contributes to solving existing problems of semantic heterogeneity and hides most of the complexity of the required procedure from the requester. A query language and graphical user interface allow a requester to intuitively formulate a query using a well‐known domain vocabulary. From this query, an ontology concept is derived, which is then used to search a catalogue for a data source that provides all the information required to answer the ...
- Subjects :
- Vocabulary
Information retrieval
Concept search
Ontology Concept
Computer science
media_common.quotation_subject
InformationSystems_INFORMATIONSTORAGEANDRETRIEVAL
Geography, Planning and Development
Library and Information Sciences
Ontology (information science)
Query language
Semantic heterogeneity
Query expansion
Natural language
Information Systems
media_common
Subjects
Details
- ISSN :
- 13623087 and 13658816
- Volume :
- 20
- Database :
- OpenAIRE
- Journal :
- International Journal of Geographical Information Science
- Accession number :
- edsair.doi...........cf18ec5482689bcbeb448dc08ba779f4