Current Status ofClearinghouse Activities in

GSI

HOSHINO Yoshihisa and KAWASE Kazushige

Geographical Survey Institute (GSI)Ministry of Land, Infrastructure and

Transport Japan

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

Contents (2)Contents (2)

Activities toward development of clearinghouse in Japan– Clearinghouse of GSI– Clearinghouse for ISCGM

Future plan

Necessities of clearinghouse

Promote geographic information exchangeAvoid duplicate investment in geographic information developmentMaterialize the government recognition of its importance

GIS action program2002-2005 of government

Encourage municipal governments and universities to register their nodes to GSI clearinghouse gateway by FY 2003Standardize technical specification for geographic metadata profile of ISO 23950

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

Development of standard in ISO

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

Brief structure of ISO/DIS 19115

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

Development of standard in Japan

1996-1998 completed the 1st edition of national GI standard1999- brushing up of the above standard2000 　 definition of JMP (Japan Metadata Profile, based on ISO/CD1 19115)2001 　 revised as JMP1.1a2002 revised based on ISO/DIS 19115

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・・・

NY１NY２・・・

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 ? Q ? Q ? Sydney・・・

Found2 items

Found1 item

Sydney・・・

東京１東京２・・・

NY１NY２・・・

東京１東京２・・・

東京１東京２・・・

東京１東京２・・・

東京１東京２・・・

Registered nodes in GSI clearinghouse

9 nodes of Ministries and Agencies2 nodes of Universities3 nodes of juridical personsOther countries’ nodes…

Clearinghouse for ISCGM

About 50 metadata for Global Map data have been developed– Laos, Sri Lanka, Nepal, Philippines, Thailand and Ja

pan

Added ISCGM node to the GSDI’s clearinghouse gateway

Registration to GSDI gateway

Future plan

Technological support to relevant organizationsDevelopment of terminology, thesaurus, gazetteerUseful gateway to lead to resources as one wishesMultilingual support to establish international clearinghouse by the synonymous list

If you type “Tokyo” and search, then …

東京 东京 Tokio ・・・

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 commentsland use=land cover + land characterization + land surface + ownership propertywetlands=wet land+NWI+hydric soil+inundatedhydrography=stream+river+spring+lake+pond+aqueduct+siphon+wellhypsography=elevation + relief + topography + contour

画像 ＝ 图象

画像 ＝ 图象

stored metadata written in Japanese

stored metadata written in Chinese

Gateway

画像 or 图象

画像 图象

Thank you very much!

Rainbow view from GSI building