TY - GEN
T1 - GeoST
T2 - 10th International Symposium on Web and Wireless Geographical Information Systems, W2GIS 2011
AU - Mata, Felix
AU - Claramunt, Christophe
PY - 2011
Y1 - 2011
N2 - Geographical data commonly available on the Web is often related to thematic and temporal data, and represented in heterogeneous data sources. This makes geographical information retrieval tasks non straightforward processes as the information available is often unstructured. The research presented in this paper introduces an ontology-driven approach whose objective is to facilitate retrieval of geographical information on the Web. Spatio- temporal queries are categorized in order to solve questions related to several complementary modeling dimensions: when, what andwhere. The retrieval strategy is based on the exploration of a spatio-temporal ontology, and implemented by a search engine. The whole approach is exemplified by a prototype development, and the results obtained are evaluated by a metrics based on recall and precision measures. The experimental findings show that the strategy is effective for the types of spatio-temporal queries used by our geographical retrieval approach.
AB - Geographical data commonly available on the Web is often related to thematic and temporal data, and represented in heterogeneous data sources. This makes geographical information retrieval tasks non straightforward processes as the information available is often unstructured. The research presented in this paper introduces an ontology-driven approach whose objective is to facilitate retrieval of geographical information on the Web. Spatio- temporal queries are categorized in order to solve questions related to several complementary modeling dimensions: when, what andwhere. The retrieval strategy is based on the exploration of a spatio-temporal ontology, and implemented by a search engine. The whole approach is exemplified by a prototype development, and the results obtained are evaluated by a metrics based on recall and precision measures. The experimental findings show that the strategy is effective for the types of spatio-temporal queries used by our geographical retrieval approach.
KW - Geographic and temporal information retrieval
KW - Ontology
KW - Web information retrieval
UR - http://www.scopus.com/inward/record.url?scp=79952265632&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-19173-2_3
DO - 10.1007/978-3-642-19173-2_3
M3 - Contribución a la conferencia
AN - SCOPUS:79952265632
SN - 9783642191725
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 5
EP - 20
BT - Web and Wireless Geographical Information Systems - 10th International Symposium, W2GIS 2011, Proceedings
Y2 - 3 March 2011 through 4 March 2011
ER -