Ontology driven automatic web thematic mapping based on web service chain

Spatial statistic data is location related data which could be visualized on a map that forms a thematic map. Nowadays, more and more spatial related data could be reached through internet as the development of geospatial data sharing. Traditionally, cartography of these data is done by experts manually; however, automatic cartography of the spatial statistic data could be of value to the users in a distributed circumstance who have no knowledge of cartography. In this paper, domain ontology on web thematic mapping is defined, according to this ontology, a service-chain of web cartography services is generated which could handle the spatial statistic data and get a thematic map automatically.