indexing koss in bartoc by a disciplinary and a...
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Indexing KOSs in BARTOC by a disciplinary and a phenomenon-based classification: preliminary considerationsAndreas Ledl & Claudio Gnoli, 14.09.2017
BARTOC.org
Indexing KOSs in BARTOC…, Ledl & Gnoli, International UDC Seminar 2017 University of Basel 2
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https://bartoc.org/node/496
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BARTOC.org
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Only first three levels of DDC are used
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Integrative Levels Classification (ILC)
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Experimental classification system Listing phenomena instead of disciplines Faceted Started in 2004 as an international research project
Research Interest
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How does a phenomenon-based classification system perform as compared to a disciplinary one?
No substantial data available …
BARTOC is a good opportunity to index the same items by disciplinary DDC and phenomenon-based ILC:
It has general coverage (000-999 = a-z) Most items are not very specialized
Applying ILC in BARTOC
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ILC is maintained as a MySQL database Only the basic database fields for notation, captions and synonyms have been
used for this project Exported in a csv file (6,456 records)
Taxonomy CSV import/export
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Reorganizing the hierarchical structure of ILC
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LOD / SKOS
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https://bartoc.org/en/node/472/visual
https://www.w3.org/2012/pyRdfa/Overview.html
Top-rated KOSs
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https://bartoc.org/ilc
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Results for “j: land”
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ILC Search facet
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At first, only basic ILC classes were imported but it turned out that some concepts expressed as facets are also needed:
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«diseases» is a facet of «organisms» «law» is a facet of «governments»
so these were added manually
Examples
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Thesaurus of European Education Systems
DDC: 379 940 ‘Public policy issues in education; History of Europe’
ILC: se tUE ‘schools; European Union’
CERL Thesaurus
DDC: 094 911 940 ‘Printed books; Historical geography; History of Europe’
ILC: js wl r55n yu ‘landforms; settlements; noun; humanities’
Preliminary results
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Free combination of ILC or DDC classes covers subjects with similar accuracy
Trees of classes are arranged differently:
ILC scatters disciplines
DDC scatters phenomena
Thank youfor your attention.