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Discover the significance of control in organizing information effectively using hierarchical, associative, and symbolic relationships. Learn about classifications, taxonomies, thesauri, and authority lists to enhance data access and retrieval.
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Thesaurus Management Tools TermTree Melissa Riesland / ASIS&T PNC 2002
Why control? The Great Pop vs. Soda Controversy Source: http://www.ugcs.caltech.edu/~almccon/pop_soda/
Red Hot Chili Peppers • red hot peppers • red hot chilly peppers • red hot chillipepper • red hot chillie peppers • red hot chilli peppers • red hot chilli pepers • red hot chill peppers • red hot chilipeppers • red hot chili pepper • red hot chili pepers • red hot chili • red hot • chilli peppers • chili peppers • the red hot chili peppers • red chili peppers
Relationships • Hierarchical • Equivalent • Associative
Hierarchical Parent – Child OR Trees Cats NT Domestic Cats NT Persians NT Wild Cats NT Tigers
Equivalent Pop – Soda – Coke Source: http://www.ugcs.caltech.edu/~almccon/pop_soda/
Associative Dogs Dog houses
classification “A logical system for the arrangement of knowledge.” ~~Lois Mai Chan Source: Cataloging and Classification: An Introduction, 2nd ed., McGraw-Hill, 1994.
classification • Classes and subclasses • Common and distinguishing characteristics • Pre-established principles • Items in a collection or entries in an index, bibliography, or catalog • Access and retrieval • ~~Online Dictionary of Library and Information Science (ODLIS) • Source:http://vax.wcsu.edu/library/odlis.html
classification Symbolic Represent classes and subclasses of concepts using letters, numbers, or a combination of the two. Natural language Traditionally represent relationships using nouns and noun phrases.
Controlled Vocabularies • Authority lists, gazetteers, glossaries • Taxonomies • Thesauri • Topic maps
Authority Lists Christie, Agatha, 1890-1976 100 1_ |a Christie, Agatha, |d 1890-1976 … 500 1_ |w nnnc |a Mallowan, Agatha Christie, |d 1890-1976 500 1_ |w nnnc |a Westmacott, Mary, |d 1890-1976 Source: http://authorities.loc.gov/
Gazetteers Source: http://www.gazetteer.de/home.htm)
Taxonomies vs. Thesauri • Shared characteristics • Traditional relationships • Traditional uses • Specific to topic or collection
Taxonomies vs. Thesauri • Distinguishing characteristics • Information access • Information retrieval
Information Access Browsing aka “buckets”
Information Access Navigation
Information Retrieval Explicit details
Trees & Webs Taxonomies & Thesauri Topic Maps
Topic Maps • Traditional • Knowledge structures • Information resources
Topics Topic Maps Occurrences Facet analysis and synthesis, 260-262, 280, 484 Field tags in MARC (see Fields and subfields; Subfield codes) Form headings and subdivisions: defined, 485 in LCSH, 176, 183 in Sears, 213, 218-219 Government bodies and officials, 140-141 (See also Heads of state and governments) Associations
Topic Maps Virginia Woolf wroteTo the Lighthouse 6 Virginia Woolf was married toLeonard Woolf 6 Leonard Woolf founded the Hogart Press 6 The Hogart Press published T.S. Eliot’s The Wasteland 6 Eliot was influenced by Ezra Pound 6 Etc. etc.
Why buy? • Data integrity • Orphans • Circular references • Misspellings • Inversions
Why buy? • Time • Cross-checking & proofreading • Software development time
Why buy? • Cost • Time = $$$ • In-house development = $$$
Choices • Choices • Automated or manual • Bundled or stand-alone • Single or multi-user
Tasks • Vocabulary construction and maintenance • Reporting • Search and indexing
Criteria • Technical • Pricing and licenses • Acceptance
Criteria • Documentation • User experience • Data integrity
Criteria • Structural • Editing • Importing, exporting, and reports
Products Referenced in This Presentation • MultiTes - http://www.multites.com/ • TermTree - http://www.termtree.com.au/index.html • WebChoir - http://www.webchoir.com/products.html • Synapse - http://www.synaptica.com/ • Data Harmony - http://www.dataharmony.com/ • For information on more software products and how to select products, see http://www.willpower.demon.co.uk/thessoft.htm.
The End E-mail: riesland65@yahoo.com