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Part 1: overhead presentation

GEMET, the General Environmental Multilingual Thesaurus: Development, User Perspectives and Plans for a Thesaurus System. Part 1: overhead presentation Bruno Felluga, CNR - Consiglio Nazionale delle Richerche, Rome, Italy Part 2: slide show Stefan Jensen, project leader ETC/CDS,

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Part 1: overhead presentation

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  1. GEMET, the General Environmental Multilingual Thesaurus: Development, User Perspectives and Plans for a Thesaurus System Part 1: overhead presentation Bruno Felluga, CNR - Consiglio Nazionale delle Richerche, Rome, Italy Part 2: slide show Stefan Jensen, project leader ETC/CDS, Lower Saxony Ministry of the Environment Hannover, Germany Open Forum on Metadata Registries, Santa Fe, NM January 20, 2000 EUROPEAN TOPIC CENTREON CATALOGUEOF DATA SOURCES (ETC/CDS) EUROPEAN ENVIRONMENT AGENCY

  2. Outline GEMET presentation - part 2 “linking terminology and applications” GEMET activities performed by the ETC/CDS - co-ordination of the thesaurus development - GEMET usage for indexing and retrieving environmental metadata - development of application around GEMET - assessing 3rd party user needs to incorporate into future developments EUROPEAN TOPIC CENTREON CATALOGUEOF DATA SOURCES (ETC/CDS) EUROPEAN ENVIRONMENT AGENCY

  3. Co-ordination of the development - Encouraging and co-ordinating the translation of the core terminology into 12 languages - Contracting application development around GEMET - implement shared coding lists (value domains) - Promoting the use of GEMET through marketing activities - Distributing GEMET and supplying technical helpdesk EUROPEAN TOPIC CENTREON CATALOGUEOF DATA SOURCES (ETC/CDS) EUROPEAN ENVIRONMENT AGENCY

  4. GEMET - usage for indexing metainformation GEMET has been used in the work of EEA to index metadata from the following resources: - The Directory of Information Resources (DIR) - The Reporting Obligation Database (ROD) to do this, 2 applications were developed: - MS-Access based tool for metadata registry (WinCDS) - Webbased JAVA tool for online registration(prototype) EUROPEAN TOPIC CENTREON CATALOGUEOF DATA SOURCES (ETC/CDS) EUROPEAN ENVIRONMENT AGENCY

  5. Thesaurus part of WinCDS EUROPEAN TOPIC CENTREON CATALOGUEOF DATA SOURCES (ETC/CDS) EUROPEAN ENVIRONMENT AGENCY

  6. JAVA based online registration - the indexing EUROPEAN TOPIC CENTREON CATALOGUEOF DATA SOURCES (ETC/CDS) EUROPEAN ENVIRONMENT AGENCY

  7. GEMET - usage for indexing metainformation Directory of Information Resources Total dataset sum: 931 Controlled terms in use: 655 of ~5300 Total descriptors sum: 4714 (GEMET terms used for indexing) Term ranking: 121 of 655 terms have been used more than 10 times EUROPEAN TOPIC CENTREON CATALOGUEOF DATA SOURCES (ETC/CDS) EUROPEAN ENVIRONMENT AGENCY

  8. Terms used more than 60 times EUROPEAN TOPIC CENTREON CATALOGUEOF DATA SOURCES (ETC/CDS) EUROPEAN ENVIRONMENT AGENCY

  9. DIR : term ranking

  10. DIR : term ranking

  11. GEMET - usage for indexing metainformation Reporting Obligations Database ROD prototype Questions Datasets total: 22844 Controlled terms in use: 323 of 5300 have been used 86628 times Top ranking: Term ‚atmospheric emissions‘ has been used 14443 times Sources Datasets total: 42 Controlled terms in use: 65 of 5300 have been used 256 times EUROPEAN TOPIC CENTREON CATALOGUEOF DATA SOURCES (ETC/CDS) EUROPEAN ENVIRONMENT AGENCY

  12. ROD questions: term ranking

  13. ROD questions: term ranking

  14. ROD questions: term ranking

  15. ROD sources: term ranking between 10 and 33

  16. ROD sources: term ranking

  17. GEMET - usage to browse and retrieve metadata • GEMET is used to browse or retrieve metadata within 5 applications: • The ThesShow GEMET browser • The WebCDS accessing the DIR via HTML • The WebCDS accessing the DIR via JAVA applets • The multilingual search service (MSS) • The Reporting Obligation Database (ROD) EUROPEAN TOPIC CENTREON CATALOGUEOF DATA SOURCES (ETC/CDS) EUROPEAN ENVIRONMENT AGENCY

  18. JAVA based thesaurus browser for WebCDS EUROPEAN TOPIC CENTREON CATALOGUEOF DATA SOURCES (ETC/CDS) EUROPEAN ENVIRONMENT AGENCY

  19. The Multilingual Search Service (MSS) • Motivation • distributed multilingual document collections of European institutions (European Environment Agency, EEA) • support query formulation in user‘s native language • search and retrieve documents in all understandable languages • Approach of EEA‘s Multilingual Search Service (MSS) • thesaurus support for query formulation(domain specific thesaurus required, e.g. GEMET) • translation by making use of multilinguality of theseaurus(GEMET is available in 12 languages) • use translations as input for off-the-shelf Web search engine (e.g., Netscape Compass Server) EUROPEAN TOPIC CENTREON CATALOGUEOF DATA SOURCES (ETC/CDS) EUROPEAN ENVIRONMENT AGENCY

  20. Using a term for searching metadata EUROPEAN TOPIC CENTREON CATALOGUEOF DATA SOURCES (ETC/CDS) EUROPEAN ENVIRONMENT AGENCY

  21. Search results from websites within the EERC EUROPEAN TOPIC CENTREON CATALOGUEOF DATA SOURCES (ETC/CDS) EUROPEAN ENVIRONMENT AGENCY

  22. Questionnaire about GEMET usage Goals: - learn more about current users - get guidance from usage for future development Process: - the current ~200 GEMET users from all over the world have been addressed by e-mail - the 2 page (+annexes) questionnaire was made available digitally and as a form on internet - Survey was performed in November and December 1999 EUROPEAN TOPIC CENTREON CATALOGUEOF DATA SOURCES (ETC/CDS) EUROPEAN ENVIRONMENT AGENCY

  23. Areas and frequency of GEMET usage 100% translation 56% translation22% indexing/retrieval 42% translation 33% indexing 22% retrieval EUROPEAN TOPIC CENTREON CATALOGUEOF DATA SOURCES (ETC/CDS) EUROPEAN ENVIRONMENT AGENCY

  24. Current usage of languages in GEMET %

  25. Evaluation of the thesaurus content %

  26. Usage of the GEMET browser ThesShow %

  27. GEMET - conclusions from the own indexing experience and the questionnaire General guidelines: - The GEMET content should remain stable, minor improvements are justified - There is a need to add new functionalities to the tools to allow the user to customise an own “thesaurus system” EUROPEAN TOPIC CENTREON CATALOGUEOF DATA SOURCES (ETC/CDS) EUROPEAN ENVIRONMENT AGENCY

  28. Contact information URL: http://www.mu.niedersachsen.de or http://etc-cds.eionet.eu.int eMail: etc/cds@mu.niedersachsen.de EUROPEAN TOPIC CENTREON CATALOGUEOF DATA SOURCES (ETC/CDS) EUROPEAN ENVIRONMENT AGENCY

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