MyGeoOntology An Information- Focused Geospatial Ontology for SDI towards Knowledge Interoperability

Transcription

1 MyGeoOntology An Information- Focused Geospatial Ontology for SDI towards Knowledge Interoperability Mohd Sidek Abd Ghafar Alamisoft Sdn Bhd Fuziah Abu Hanifah Malaysian Centre for Geospatial Data Infrastructure Commission No. 3 Introduction Knowledge Ambiguity in geospatial data Geographic considerations such as spatial features, locations, place names, interrelationships, and attributes are often ambiguous and imprecise. 1

2 Semantic Technology.. Create a network of machine-processable resources. Existing in parallel with the current World Wide Web. Enables software to carry out tasks on users' behalf. Moving from a Web of "finding things" to a Web of "doing things... and Ontology Semantic technology provides contextual meaning in the exchange of geo-spatial information through the ability to organize information using ontologies(knowledgebase) and reasoning. 2

3 Spatial Data Infrastructure SDI such as MyGDI facilitates sharing of geospatial data through a catalogueof metadata and connected systems for data providers to register data and users to access the information. Enriching SDI Within SDI environment, Semantic application can use the catalogue to mediate the different meanings in the data and enrich the data with other information to achieve knowledge interoperability. 3

4 Geospatial Knowledge Status of biodiversity for an area: Information about species in the area (or by areas). Status of the species in terms of: Its biodiversity significance. Are the species are in protected areas. Any events that take place where the species in question are located that are of a biodiversity significance. Are there species and events that are of biodiversity significance that are not in the protected areas. Geospatial Knowledge (cont.) Area w/ BioD Significance Protected Areas Events with BioD Significance 4

5 Geospatial Knowledge (cont.) Geospatial Knowledge (cont.) w/ BioD Significance 5

6 Geospatial Knowledge (cont.) w/ BioD Significance Protected Areas Geospatial Knowledge (cont.) w/ BioD Significance Protected Areas Events with BioD Significance 6

7 Geospatial Knowledge (cont.) Area w/ BioD Significance Protected Areas Events with BioD Significance Knowledge Information about species. Biodiversity significance of species. Information about protected areas. Events with biodiversity significance. 7

8 Knowledge Information about species. Biodiversity significance of species. Information about protected areas. Events with biodiversity significance. Protected Areas 8

9 Reported Fauna-related Events Events in Protected Areas 9

10 Knowledge Information about species. Biodiversity significance of species. Information about protected areas. Events with biodiversity significance. Events Registered by Agency 10

11 Events Registered by Agency Building knowledge from operational data (that is updated in day-to-day operation) Day Month Year Locality GridX GridY Distict Parliament Area State Disturbance Type Action Knowledge at Operational Level Location GridY GridX Parliament Area State Bio-Diversity Considerations Time District Locality Disturbance Type Month Action Day Year 11

12 Knowledge at Operational Level State Locality ParliamentArea Location District GridY GridX Knowledge at Operational Level Disturbance Type Bio-Diversity Considerations Action 12

13 Domain Ontology Knowledge about biodiversity significance factors BioD Disturbance Poaching Illegal Trade Ivory Trade Forest Conversion Habitat Fragmentation Disease Habitat Disturbance Domain Ontology Knowledge about species and biod status Least Concern Threatened Wildlife Endangered Orang Utan Mammal Elephant Ivory Corals Asian Rhino Horns Vulnerable Critically Endangered Near Threatened 13

14 MyGeoOntology Kg. Batu Dua Belas Gombak Latitud dan Longitud 3 17' 38.2" N ' 49.9" E Nama Daerah Jenis Gombak Pekan Jalan Pantai Pulau Tasik Teluk Muara Bandar Tanjung Kampung Hutan Kg. Batu Dua Belas Gombak Federated Knowledge Knowledge at Operational Level MyGeo- Ontology Knowledge about biodiversity significance factors Knowledge about species and the biod status Information about protected areas Disturbance Type Same As BioD Disturbance Locality Jenis District Daerah Protected Area 14

15 MyGeoOntology in SDI Knowledge in field Knowledge in Domain Ontology agencies/operational Structured and Unstructured Data Sources Generated RDF RDF MyGeoOntology RDF Agency 1 RDF Web Browser Agency 2 Agency 3 RDF Semantic Application Geospatial knowledge API and Web Services RDF Knowledge Interoperability MyGeoOntologyaims to enable interoperability of geospatial knowledge at three levels. MyGeoOntologycan be used to realize the possibility of exchanging geospatial information unambiguously. Through MyGeoOntologythe geospatial data can be enriched to bring out further knowledge related to the data. MyGeoOntologycan further be used to enable integration of the knowledge with other information using geospatial context. 15

16 Thank you for your attention! Alamisoft Sdn Bhd and MaCGDI 16