Indexing Principles and Indexing Languages

A complete set of vocabulary flashcards based on lecture notes covering indexing principles, exhaustivity, specificity, indexing styles, semantic relationships, and types of indexing languages.

Exhaustivity

The extent to which concepts or topics are written using broad and specific index terms, reflecting the detail with which a document's topics are analyzed and described.

Summarization

An indexing approach that identifies only the dominant or general subject that describes a document item.

Depth Indexing

An indexing approach that extracts all the main concepts described within a document, recognizing many subthemes and subtopics.

Specificity

The closeness of fit between index terms and the topics they represent, reflecting how precisely a topic is identified in a hierarchical tree.

Inter-indexer Consistency

The extent of agreement regarding the indexing terms to be used among different indexers indexing the same document.

Intra-indexer Consistency

The extent to which a single indexer is consistent with himself or herself in assigning index terms across indexing tasks.

Pre-coordinate Indexing

A system in which the indexer combines two or more terms into a single expression before indexing, reflecting the subject relationship within the document.

Post-coordinate Indexing

A system in which individual terms are assigned to a document separately and combined only at the time of retrieval.

Indexing Language

Any vocabulary, controlled or uncontrolled, used for indexing together with rules of usage and mechanisms for structuring terms to name or identify subjects.

Vocabulary (Indexing Language)

A list of terms, arranged alphabetically or in a classified manner, selected for use in indexing.

Syntax (Indexing Language)

The combination and modification of terms to form simple or multilevel index terms.

Semantics (Indexing Language)

The permanent class relations between index terms within an indexing language.

Equivalence Relationship

A semantic relationship between terms denoting the same concept, including synonyms, quasi-synonyms, preferred spellings, acronyms, established terms, and translations.

Hierarchical Relationship

A tree-type semantic relationship between terms based on genus/species or whole/part relationships.

Associative Relationship

A non-hierarchical semantic relationship where terms are associated primarily through experience or relatedness, identified by the label 'Related Terms'.

Derived-term Indexing

An indexing method, also called indexing by extraction, where all descriptors are taken directly from the document text itself.

Assigned-term Indexing

An indexing method where descriptors are assigned from a controlled vocabulary based on subjective interpretation of implied concepts.

Natural Language

An indexing approach using words and phrases exactly as they appear in source documents or common usage, without converting them into a controlled vocabulary.

Controlled Vocabulary

An approved list of standard terms used as index terms to manage synonyms, quasi-synonyms, and bring together semantically related terms.

USE and UF (Used For)

Syndetic devices used for synonymy in controlled vocabulary; USE points to the preferred standard term, while UF indicates non-preferred terms replaced by the preferred term.

BT, NT, and RT

Syndetic references used in controlled vocabulary for differing levels of specificity: Broader Term (BT), Narrower Term (NT), and Related Term (RT).

Parenthetical Qualifiers

Qualifying terms placed in parentheses to resolve semantic ambiguities among homographs (e.g., Mercury (Planet) vs. Mercury (Chemical element)).

Subject Heading List

An alphabetical list of subject headings containing cross-references from non-preferred to preferred terms, linking devices, and standardized subheadings.

Thesaurus (Indexing)

A controlled indexing vocabulary based on terms in actual document texts, structured to display equivalence, homographic, hierarchical, and associative relationships.

Library of Congress Subject Headings (LCSH)

A controlled subject heading list used with the Subject Cataloging Manual: Subject Headings and updated continuously via Cataloger's Desktop, RLIN, and OCLC.

Sears List of Subject Headings

A subject heading list intended for small collections and general user needs, primarily utilized by public and school libraries.

Medical Subject Headings (MeSH)

A controlled vocabulary used by the National Library of Medicine, published in three volumes: hierarchical listing, alphabetical listing with scope notes, and permuted alphabetical listing.

Free Language

An indexing language without constraints on assigned terms, common in computer-indexing environments where any word fitting the subject may be assigned.