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Towards a High-level Thesaurus?

This document outlines the initiatives led by the SCONE group and allied organizations to develop a high-level thesaurus for improved subject classification in library and information services. It discusses the need for dynamic clumping of subjects to aid user navigation, leveraging established frameworks like Conspectus and RCO. The paper emphasizes the importance of cross-sector collaboration in Scotland, defining common subject schemes, and addressing challenges in maintaining an effective, user-friendly classification system that adapts to evolving needs.

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Towards a High-level Thesaurus?

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  1. Towards a High-level Thesaurus? Dennis Nicholson: Centre for Digital Library Research, Strathclyde University

  2. Models 11 and SCONE • Timing • Earlier: no problem • Later: results to report • Opportunity: • Official support and Illumination? • Wider involvement?

  3. SCONE Group • SCONE, CAIRNS, RIDING, M25, MLO, BUBL • Cross-sectoral groups in Scotland: SAGIA: NGfL Scotland, SLAINTE, SCRAN, SUFI, GTN • Agreed way forward on a common subject scheme • Agreement to work together one achievement

  4. Dynamic Clumping • Origin of problem: CAIRNS and dynamic clumping • Mechanism to aid user navigation • Based on Conspectus exercise • RCO database • CAIRNS and Dynamic clumping • http://wp338.lib.strath.ac.uk/cairns/dynatop.htm • Depth of hierarchy

  5. Conspectus Hierarchy • 25 Divisions • 250 Categories • 7000 subjects • E.G.: PHYSICAL SCIENCES • PHY 78-125 PHYSICS • PHY 88 Relativity • Physics clump too large and ‘hides’ real strengths

  6. Expanding CAIRNS • Already includes more than RCO • Aim is: Scottish cross-sectoral distributed union catalogue • An integrated part of a UK distributed catalogue • Large clumps: dynamic clumping: using a common subject scheme • But, Conspectus? Not likely: 3 reasons

  7. Conspectus Divisions • AGRICULTURE • CARTOGRAPHIC MATERIALS • ECONOMICS AND SOCIOLOGY • EDUCATION • GOVERNMENT DOCUMENTS • MILITARY SCIENCE • PHYSICAL SCIENCES • PSYCHOLOGY

  8. Conspectus Categories • PHY 1-50 MATHEMATICS • PHY 51-77 ASTRONOMY • PHY 78-125 PHYSICS • PHY 126-164 CHEMISTRY • Not unusual • Best chance for mapping?

  9. Conspectus Subjects • PHY 78 Physics (General) • PHY 79 Periodicals • PHY 80 History, biography • PHY 81 Mathematical physics • PHY 82 Study and teaching • PHY 83 Weights and measures • More unusual mix?

  10. SCONE RSLP Project • Influence on SCONE: deliverables: • Expanding RCO/dynamic clumping • Examining alternative methods of measuring collection strength • Providing tools to support CCD • Mapping Conspectus to other subject schemes: Recognition

  11. Mapping to what? • Alternative preferred scheme • UK orientation and control • Acceptable across sectors in Scotland and to other clumps • Preferably encompassing RAE headings • BUBL LINK subject scheme

  12. BUBL scheme? • Not original intention but attractive: • Based on DDC and LC • Adapted to UK terminology • Covers all subject areas • Under community control • Live and developing; Examples • May solve maintenance problem

  13. BUBL Subjects • 170 top level terms • 1400 loosely related ‘sub-terms’ • Used for 12,000 BUBL LINK internet resources • including subject gateways in RDN • Familiar to UK users within and beyond academic sector

  14. BUBL Top Level • Accounting • Advertising • Aerospace Engineering, Aeronautics • Agriculture, Forestry, Fisheries • Anatomy • Anthropology • Archaeology

  15. BUBL Lower level • Minorities • Modern art • Molecular biology • Molecular modelling • Molluscs • Mixed: several levels: not perfect: will adjust

  16. Initial agreement • Proposal put to clumps projects • RAE, M25 80% mappings • Music Libraries Online: depth • RIDING prepared to examine • SAGIA group general support • NERIS merge work: schools> • Approach worth examining further

  17. What now? • SCONE work at early stage • BUBL funding not a problem • Detailed work needs to be done to tailor BUBL scheme to fit needs • This has to be done at subject terms level - can’t be done at a workshop like this • But: agree a structure?

  18. Thesaurus needed? • Scone work: suggests thesaurus • BTs and NTs (various degrees) • Related terms (different approaches) • Grouped terms (shape and space) • Synonyms (geometry) • Document types/user levels etc

  19. DDC Top 100? • Not adequate • Insufficient depth to cope with 3 level Conspectus hierarchy • Depth needed for dynamic clumping (think about MLO) • Even top level BUBL terms go deeper into Dewey e.g. Anatomy 611 Electronics 621

  20. Requirements • General requirements: concerns: • Sustainable maintenance • Widely and officially accepted • Fit for purpose: user adaptability and effective navigation and…? • Last is most important and is still being researched within SCONE

  21. MODELS 11 link • Key question: are we addressing the same problem? • If not, SCONE will take account of MODELS and aim for community input anyway • If we are, SCONE resources can help contribute to a solution • RSLP extension possible?

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