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10.1. Definitions of Specificity.
● 1 specificity as closeness of relationship between index term and topic
● 2
● 3 specificity versus scope of index terms
● 4 views of Cutter (Charles Ammi) on specificity
● 5 views of Library of Congress on specificity
● 6 alternative definitions of specificity
● 7 views of Svenonius (Elaine) on specificity
● 8 operational specificity; number of postings as specificity
● 9 operational specificity
● 10
● 11 semantic specificity versus operational specificity
● 12
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● 16 alternative definitions of specificity: views of Balnaves (John)
● 17
● 18 views of Wilson (Patrick) on specificity; specificity in Library of Congress subject headings
● 19 specificity versus broader-narrower cross references, up-posting, and generic posting
● 20
● 21 facets and hierarchical relationships
● 22 views of Sparck Jones (Karen) on specificity
● 23
● 24 views of Weinberg (Bella Hass) on specificity: hierarchical specificity
● 25
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10.2. Relations between Exhaustivity and Specificity.
● 27
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10.3. Examples of Specificity.
● 30
● 31 hierarchical relationships versus roles
10.4. Practical Specificity.
● 32
● 33 vocabulary of users versus specificity
● 34 narrow-scoped searches versus broad-scoped searches
10.5. Impact of Specificity on Precision and Recall.
● 35 impact of specificity on precision
● 36 impact of specificity on recall
● 37
10.6. Impact of Specificity on Vocabulary Size.
● 38
● 39 impact of vocabulary control on specificity
● 40 collocation of minor concepts by generic terms
● 41 impact of free uncontrolled vocabulary on specificity
● 42 controlled vocabularies versus un-controlled vocabularies for indexing
● 43
● 44 interactions of specificity with exhaustivity and vocabulary management
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10.7. Specificity Versus Syntax.
● 47
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10.8. Our Examples.
10.8.1. A Book Index.
● 50 specificity of index terms assigned by human indexing in book indexes
● 51 specificity of index terms assigned by automatic indexing in book indexes
10.8.2. An Indexing and Abstracting Service.
● 52
10.8.3. A Full-Text Encyclopedia/Digital Library.
● 53
● 54
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