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Current Status of Clearinghouse Activities in GSI HOSHINO Yoshihisa and KAWASE Kazushige Geographical Survey Institute (GSI) Ministry of Land, Infrastructure.

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Presentation on theme: "Current Status of Clearinghouse Activities in GSI HOSHINO Yoshihisa and KAWASE Kazushige Geographical Survey Institute (GSI) Ministry of Land, Infrastructure."— Presentation transcript:

1 Current Status of Clearinghouse Activities in GSI HOSHINO Yoshihisa and KAWASE Kazushige Geographical Survey Institute (GSI) Ministry of Land, Infrastructure and Transport Japan

2 Contents (1) Necessity of clearinghouse and necessary standards to develop it –Standard for description of metadata –Standard for information search and retrieval Status of clearinghouse development

3 Contents (2) Activities toward development of clearinghouse in Japan –Clearinghouse of GSI –Clearinghouse for ISCGM Future plan

4 Necessities of clearinghouse Promote geographic information exchange Avoid duplicate investment in geographic information development Materialize the government recognition of its importance

5 GIS action program 2002-2005 of government Encourage municipal governments and universities to register their nodes to GSI clearinghouse gateway by FY 2003 Standardize technical specification for geographic metadata profile of ISO 23950

6 Necessary standard for clearinghouse development Standard for description of metadata –ISO standard for metadata –Japanese standard for Geographic Information version 2 (2002) –Content Standard for Digital Geographic Metadata (CSDGM) –Others

7 Development of standard in ISO ISO/TC 211 (established in 1994) ISO 19100 series concerned with Geographic Information ISO 19115 Geographic Information – Metadata –terminated voting for DIS on 2002-02-20

8 Brief structure of ISO/DIS 19115

9 Standard for information search and retrieval ISO 23950:1998 –Information and documentation – Information retrieval (Z39.50) – Application service definition and protocol specification –Also standardized as JIS (Japanese Industrial Standard) X 0806:1999

10 Development of standard in Japan 1996-1998 completed the 1st edition of national GI standard 1999- brushing up of the above standard 2000 definition of JMP (Japan Metadata Profile, based on ISO/CD1 19115) 2001 revised as JMP1.1a 2002 revised based on ISO/DIS 19115

11 Simultaneous search and retrieval through an HTTP-Z39.50 gateway Gateway in GSI Q ? A: Found 5 items in total. Found 2 items 東京1 東京2 ・・・ NY 1 NY 2 ・・・ Not found Node in other countries Node in U.S. Node in GSI User Clearinghouse in Japan Node in Australia Q: Search relevant data including “ 東京 ”, “ New York ” and “ Sydney. Q ? Sydney ・・・ Found 2 items Found 1 item Sydney ・・・ 東京1 東京2 ・・・ NY 1 NY 2 ・・・ 東京1 東京2 ・・・ 東京1 東京2 ・・・ 東京1 東京2 ・・・ 東京1 東京2 ・・・

12 Registered nodes in GSI clearinghouse 9 nodes of Ministries and Agencies 2 nodes of Universities 3 nodes of juridical persons Other countries’ nodes …

13 Clearinghouse for ISCGM About 50 metadata for Global Map data have been developed –Laos, Sri Lanka, Nepal, Philippines, Thailand and Japan Added ISCGM node to the GSDI’s clearinghouse gateway

14 Registration to GSDI gateway

15 Future plan Technological support to relevant organizations Development of terminology, thesaurus, gazetteer Useful gateway to lead to resources as one wishes Multilingual support to establish international clearinghouse by the synonymous list If you type “Tokyo” and search, then … 東京东京 Tokio ・・・

16 Synonymous setup in clearinghouse software “Isite” # Rows of the form: # parent phrase = child1+child2+multiword child+... +childN # # White space is ignored at the start and end of child terms # Comments start with # spatial=geospatial+geographic+terrestrial # Here are more comments land use=land cover + land characterization + land surface + ownership property wetlands=wet land+NWI+hydric soil+inundated hydrography=stream+river+spring+lake+pond+aqueduct+siphon+well hypsography=elevation + relief + topography + contour 画像 = 图象

17 stored metadata written in Japanese stored metadata written in Chinese Gateway 画像 or 图象 画像图象

18

19 Thank you very much! Rainbow view from GSI building


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