Specificity

Contents

10.1. Definitions of Specificity
10.2. Relations between Exhaustivity and Specificity.
10.3. Examples of Specificity
10.4. Practical Specificity
10.5. Impact of Specificity on Precision and Recall.
10.6. Impact of Specificity on Vocabulary Size.
10.7. Specificity Versus Syntax.
10.8. Our Examples.
10.8.1. A Book Index.
10.8.2. An Indexing and Abstracting Service.
10.8.3. A Full-Text Encyclopedia/Digital Library.
10.1. Definitions of Specificity.

● 1 specificity as closeness of relationship between index term and topic

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● 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

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● 11 semantic specificity versus operational specificity

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● 16 alternative definitions of specificity: views of Balnaves (John)

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● 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

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● 21 facets and hierarchical relationships

● 22 views of Sparck Jones (Karen) on specificity

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● 24 views of Weinberg (Bella Hass) on specificity: hierarchical specificity

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10.2. Relations between Exhaustivity and Specificity.

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10.3. Examples of Specificity.

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● 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

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● 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.