Towards a High-level Thesaurus? Dennis Nicholson: Centre for Digital Library Research, Strathclyde...
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Transcript of Towards a High-level Thesaurus? Dennis Nicholson: Centre for Digital Library Research, Strathclyde...
Towards a High-level Thesaurus?
Dennis Nicholson:
Centre for Digital Library Research, Strathclyde University
Models 11 and SCONE Timing Earlier: no problem Later: results to report Opportunity: Official support and Illumination? Wider involvement?
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
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
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
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
Conspectus Divisions AGRICULTURE CARTOGRAPHIC MATERIALS ECONOMICS AND SOCIOLOGY EDUCATION GOVERNMENT DOCUMENTS MILITARY SCIENCE PHYSICAL SCIENCES PSYCHOLOGY
Conspectus Categories PHY 1-50 MATHEMATICS PHY 51-77 ASTRONOMY PHY 78-125 PHYSICS PHY 126-164 CHEMISTRY Not unusual Best chance for mapping?
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?
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
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
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
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
BUBL Top Level Accounting Advertising Aerospace Engineering,
Aeronautics Agriculture, Forestry, Fisheries Anatomy Anthropology Archaeology
BUBL Lower level Minorities Modern art Molecular biology Molecular modelling Molluscs Mixed: several levels: not perfect:
will adjust
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
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?
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
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
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
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?