Classical databases and knowledge organization: A case for boolean retrieval and human decision‐making during searches
Abstract
This paper considers classical bibliographic databases based on the Boolean retrieval model (such as MEDLINE and PsycInfo). This model is challenged by modern search engines and information retrieval (IR) researchers, who often consider Boolean retrieval a less efficient approach. The paper examines this claim and argues for the continued value of Boolean systems, and suggests two further considerations: (a) the important role of human expertise in searching (expert searchers and “information literate” users) and (b) the role of library and information science and knowledge organization (KO) in the design and use of classical databases. An underlying issue is the kind of retrieval system for which one should aim. W arner's (2010) differentiation between the computer science traditions and an older library‐oriented tradition seems important; the former aim to transform queries automatically into (ranked) sets of relevant documents, whereas the latter aims to increase the “selection power” of users. The Boolean retrieval model is valuable in providing users with the power to make informed searches and have full control over what is found and what is not. These issues may have significant implications for the maintenance of information science and KO as research fields as well as for the information profession as a profession in its own right.
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Boolean operators (AND, OR, NOT) are an integral part of systematic searches, allowing the user to precisely specify the scope of the query as no other technique could.
“Boolean operators (AND, OR, NOT) are an integral part of systematic searches,26 allowing the user to precisely specify the scope of the query as no other technique could.”
Boolean operators provide a great range of strategies to increase recall and precision.
“They provide “a great range of strategies are available to increase ‘recall’ and ‘precision.’”( 26 , p1570)”
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- Authors
- Hjørland, B.
- Affiliations
- University of Copenhagen (DK)
- Corresponding author
- Hjørland, Birger
- ORCID
- Hjørland, Birger
- Venue
- Journal of the Association for Information Science and Technology
- Publisher
- Wiley
- Published
- 2014-06-04
- Volume
- 66
- Issue
- 8
- Pages
- 1559-1575
- ISSN
- 2330-1635 (ISSN-L)
- 2330-1643
- OpenAlex
- W1814308847
- Cited by
- 47
- References
- 120
- Citations by year
- 2026: 4 · 2025: 3 · 2024: 4 · 2023: 2 · 2022: 5 · 2021: 6 · 2020: 9 · 2019: 3 · 2018: 3 · 2017: 2 · 2016: 5 · 2015: 1
- FWCI
- 7.37
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of the Association for Information Science and Technology (publishedVersion)
- RePEc: Research Papers in Economics (submittedVersion)
- Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
- Topics
- Physical Sciences › Computer Science › Information Systems › Information Retrieval and Search Behavior
- Physical Sciences › Computer Science › Information Systems › Library Science and Information
- Social Sciences › Library and Information Sciences › Library Science and Information Literacy
- Keywords
- Boolean retrieval, bibliographic databases, knowledge organization, information literacy, MEDLINE, PsycINFO, search engines, retrieval system design, information professions, information science
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
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