1. SNS – Semantic Network Service Environmental Thesaurus/Terminology Workshop, Geneva 14-15 April 2004 1 Semantic Network Services Dr. Maria Rüther Umweltbundesamt, Berlin Email: maria.ruether@uba.demaria.ruether@uba.de Thomas Bandholtz, Consultant Email: thomas@bandholtz.infothomas@bandholtz.info

2. SNS – Semantic Network Service Environmental Thesaurus/Terminology Workshop, Geneva 14-15 April 2004 2 Shared vocabulary 1.a thesaurus of currently 39,143 environmental terms (UmThes ®, German source of GEMET). Language: German – English 2.a gazetteer including the intersections between 48,213 geographical objects of all kinds. Language: German 3.a chronology of historical and contemporary events that have affected the environment, currently 593 events. Language: German - English Umweltbundesamt

3. SNS – Semantic Network Service Environmental Thesaurus/Terminology Workshop, Geneva 14-15 April 2004 3 Thesa. Component preferred broader composite related Synonym Descriptor Morphology Location intersects Morphology part of Types / Layers Coordinates Event sequence Morphology related Types Temp. Extent Integration in a Topic Map Topic what where Associations between events, places names and descriptions Umweltbundesamt

4. SNS – Semantic Network Service Environmental Thesaurus/Terminology Workshop, Geneva 14-15 April 2004 4 An Example for associations Descriptor Topic Event Location Conference Community Nation climate convention First UNFCC Conference, Berlin 3/28/1995 - 4/7/1995 Berlin Deutschland situated in broader where what International convention occurrences http://unfccc.int/cop5/resource/docs/cop1/07.htm http://unfccc.int/cop5/resource/docs/cop1/07a01.htm Thesaurus Topic class Topic instance Association Umweltbundesamt

5. SNS – Semantic Network Service Environmental Thesaurus/Terminology Workshop, Geneva 14-15 April 2004 5 Accessing the topics by Web Services SNS offers 3 services findTopics searches the Topic Map for topics matching the given parameters. The result is a flat list of matching topics, but no associations. autoClassify provides automatic indexing. The text to be indexed can be passed by a character constant (document) or by web address (url). The result is a list of significant topics that classify the document. getPSI (PSI= „Published Subject Identifier“) provides terminology reference by web address (url). The result is a tree of associated topics. Umweltbundesamt

6. SNS – Semantic Network Service Environmental Thesaurus/Terminology Workshop, Geneva 14-15 April 2004 6 ready for use: Developer Toolkit & Documentation gein® and GeoMIS.Bun d are using these Web Services Umweltbundesamt

7. SNS – Semantic Network Service Environmental Thesaurus/Terminology Workshop, Geneva 14-15 April 2004 7 What comes next......possible Other applications integrate the SNS services SNS extends the vocabulary for new users SNS provides its technology for new services http://www.semantic-network.deUmweltbundesamt

8. SNS – Semantic Network Service Environmental Thesaurus/Terminology Workshop, Geneva 14-15 April 2004 8 sns End of regular presentation Umweltbundesamt

9. SNS – Semantic Network Service Environmental Thesaurus/Terminology Workshop, Geneva 14-15 April 2004 9 How to reference a Thesaurus in ISO 19139 What will http://services.agency.int//getPSI?WEU10 return? http://services.agency.int//getPSI?WEU10 - a human-readable web page? -XML encoded description? OGC Catalog Services ISO 19115 geographic Metadata ISO 19139 XML Schema Umweltbundesamt

10. SNS – Semantic Network Service Environmental Thesaurus/Terminology Workshop, Geneva 14-15 April 2004 10 XML Formats for Thesaurus GEMET XML format – no Schema, no DTD – no standard ! http://www.eionet.eu.int/GEMET http://www.eionet.eu.int/GEMET SKOS-Core 1.0 RDF Schema by SWAD Europe Thesaurus Activity (W3C + IST) http://www.w3.org/2001/sw/Europe/reports/thes http://www.w3.org/2001/sw/Europe/reports/thes The ADL Thesaurus Protocol (Alexandria Digital Library) http://www.alexandria.ucsb.edu/~gjanee/thesaurus/specification.html http://www.alexandria.ucsb.edu/~gjanee/thesaurus/specification.html Zthes: a Z39.50 Profile for Thesaurus Navigation http://lcweb.loc.gov/z3950/agency/profiles/zthes-04.html http://lcweb.loc.gov/z3950/agency/profiles/zthes-04.html or more general: XTM: XML Topic Map (ISO 13250) Umweltbundesamt

11. SNS – Semantic Network Service Environmental Thesaurus/Terminology Workshop, Geneva 14-15 April 2004 11 Technical platform used by SNS Oracle Database J2EE Architecture Open Source (Tomcat, Cocoon) Web Services (W3C Web Service Activity) XML Interchange format: XTM 1.0 (XML Topic Maps, ISO/IEC 13250) Umweltbundesamt

12. SNS – Semantic Network Service Environmental Thesaurus/Terminology Workshop, Geneva 14-15 April 2004 12 Searching the topics: www.semantic-network.dewww.semantic-network.deUmweltbundesamt

13. SNS – Semantic Network Service Environmental Thesaurus/Terminology Workshop, Geneva 14-15 April 2004 13 Öffentliche Umweltinformation im Web* www.gein.de To the Topic Map * EU-Umwelt- informations- richtlinie, Novellierung dt. Umwelt- informations- gesetz Umweltbundesamt

14. SNS – Semantic Network Service Environmental Thesaurus/Terminology Workshop, Geneva 14-15 April 2004 14 Erweiterung der Topic Map Thesa. Location Topic Event „Microthesauri“ Indicators Methods Substances region Actors Umweltbundesamt

15. SNS – Semantic Network Service Environmental Thesaurus/Terminology Workshop, Geneva 14-15 April 2004 15 SNS Alpenkonvention Datenbanken im UBA, integrierte Umweltbeobachtung Neu: Koordinierungsstelle UDK/gein … einzelne Länder … GEMET, Twinning-Projekte GeoMis.Bund Umweltbundesamt

16. SNS – Semantic Network Service Environmental Thesaurus/Terminology Workshop, Geneva 14-15 April 2004 16 R&D Project May 2001 – December 2002 „Development of a Semantic Network Service for the German Environmental Information Network (gein®)“ (UFOPLAN-Ref. No. 20111612, promoted by BMU/UBA, Germany) Goals –Integration of the Environmental Thesaurus (UmThes), a national gazetteer and a chronology of evironmental events in a common data model (topic maps) –Building associations between the professional terms, places names and events –Providing access to the network for other applications (e.g. gein®) by Web Services Umweltbundesamt