Melissa Riesland / ASIS&T PNC 2002
Thesaurus Management Tools
TermTree
Definitions
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
EquivalentPop – Soda – Coke
•soft drink •tonic •soda pop, soda water
•cola, cocola
•pepsi •cold drink
•carbonated beverage
•fizzy drink •sodie, sodie pop, sody pop, sodee
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)
Gazetteers
Glossaries
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
Topic Maps
Facet analysis and synthesis, 260-262, 280, 484
Field tags in MARC (see Fields and subfields; Subfield codes)
Form headings and subdivisions:
defined, 485in LCSH, 176, 183in Sears, 213, 218-219
Government bodies and officials, 140-141 (See also Heads of state and governments)
Topics
Occurrences
Associations
Topic Maps
Virginia Woolf wrote To the LighthouseVirginia Woolf was married to Leonard WoolfLeonard Woolf founded the Hogart PressThe Hogart Press published T.S. Eliot’s
The WastelandEliot was influenced by Ezra PoundEtc. etc.
Data integrity
• Orphans
• Circular references
• Misspellings
• Inversions
Why buy?
Time
• Cross-checking & proofreading
• Software development time
Why buy?
Cost
• Time = $$$
• In-house development = $$$
Why buy?
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
•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.
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