Design and creation of ontologies for environmental information retrieval
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Design and creation of ontologies for environmental information retrieval
- 1. Design and Creation of Ontologies for Environmental Information Retrieval Vipul Kashyap AOS Workshop, Rome, November 2001 [email_address]
- 3. Ontologies for Information Retrieval: The InfoSleuth System KQML/KIF agents Domain Ontology Resource Agent Resource Agent Resource Agent User Agent User Agent User Agent
- 6. The Ontology Design Process Ontology from Database Schema Ontology from Queries Choose new Database Schema Abstract details from Database Schema Determine entities and attributes Group information, Analyze foreign keys and dependencies Determine Relationships Evaluate Ontology Implement and Test Drop entities and attributes Add new entities and attributes Add new subclasses and superclasses Choose new query No more queries
- 9. Abstracting out details related to local keys Site_Characteristic site_id (PK, FK to Site) rsic_code (PK, FK to Ref_Sic) sc_date Site Id date name code Database Schema Ontology Site site_id (PK) site_name site_ifms_ssid_ code site_rcra_id site_epa_id
- 10. Grouping Information in Multiple Tables Site site_id (PK) site_name site_ifms_ssid_ code site_rcra_id site_epa_id Site_Characteristic site_id (PK, FK to Site) rsic_code (PK, FK to Ref_Sic) sc_date Ref_Sic rsic_code (PK) rsic_code_desc Site_Alias site_id (PK, FK to Site) site_alias_id (PK) sa_name Database Schema Ontology Site date name code alias_name description
- 11. Identifying Relationships Site site_id (PK) site_name site_ifms_ssid_ code site_rcra_id site_epa_id Action site_id (PK, FK to Site) rat_code (PK, FK to ref_action_type) act_code_id (PK) Database Schema Ontology Ref_action_type rat_code (PK) rat_name rat_def Waste_Src_Media_Contaminated wsmrc_nmbr (PK) site_id (PK, FK to Action) rat_code (FK to Action) act_code_id (FK to Action) Remedial_Response site_id act_code_id rat_code Site Contaminant RemedialResponse PerformedAt actionName
- 12. Incorporation of new concepts from a different database schema Sends_Export uncode toxics_code toxics_description exporter importer Receives_Export uncode toxics_code toxics_description exporter importer Database Schema Ontology Site Contaminant RemedialResponse PerformedAt ExportsTo ImportsFrom Country
- 15. Enhancing the Ontology by using a Thesaurus abandoned site THEME POLLUTION BT land setup NT disused military site LandSetup Site AbandonedSite DisusedMilitarySite SuperfundSite