Seeing the Wood for the Trees: Enhancing Metadata Subject Elements with Weights

Subject indexing has been conducted in a dichotomous way in terms of what the information object is primarily about/of or not, corresponding to the presence or absence of a particular subject term, respectively. With more subject terms brought into information systems via social tagging, manual cata...

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Vydáno v:Information technology and libraries Ročník 30; číslo 2; s. 75 - 80
Hlavní autoři: Zhang, Hong, Smith, Linda C., Twidale, Michael, Gao, Fang Huang
Médium: Journal Article
Jazyk:angličtina
Vydáno: Chicago, IL American Library Association 01.06.2011
Témata:
Cataloging
Content analysis
Digital imaging
Digital libraries
Electronic Libraries
Exact sciences and technology
Indexing
Indexing (Content analysis)
Indexing. Classification. Abstracting
Indexing. Classification. Abstracting. Syntheses
Information and communication sciences
Information and document structure and analysis
Information processing and retrieval
Information retrieval
Information science. Documentation
Information systems
Information technology
Keywords
Library catalogs
Library collections
Library of Congress Subject Headings
Marking
Metadata
Methods
Multiple database searches
Navigation
On-line systems
Psychiatry
Psychoanalysis
Relevance
Religion
Schemas
Sciences and techniques of general use
Search theory
Searches
Social networks
Social systems
Studies
Subject heading schemes
Subject indexing
Tagging
Tags
Trees
Weighting
United States
United States > US
Illinois
Metadata
Weighting
Information system
Content analysis
Indexing
ISSN:0730-9295, 2163-5226
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Popis
Shrnutí:Subject indexing has been conducted in a dichotomous way in terms of what the information object is primarily about/of or not, corresponding to the presence or absence of a particular subject term, respectively. With more subject terms brought into information systems via social tagging, manual cataloging, or automated indexing, many more partially relevant results can be retrieved. Using examples from digital image collections and online library catalog systems, we explore the problem and advocate for adding a weighting mechanism to subject indexing and tagging to make web search and navigation more effective and efficient. We argue that the weighting of subject terms is more important than ever in today’s world of growing collections, more federated searching, and expansion of social tagging. Such a weighting mechanism needs to be considered and applied not only by indexers, catalogers, and taggers, but also needs to be incorporated into system functionality and metadata schemas.
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ISSN:0730-9295
2163-5226
DOI:10.6017/ital.v30i2.3007