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- Golub, Koraljka
(author)
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Automated subject classification of textual documents in the context of Web-based hierarchical browsing
- 2011
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In: Knowledge organization. - : Ergon-Verlag. - 0943-7444. ; 38:3, s. 230-244
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Journal article (peer-reviewed)abstract
- While automated methods for information organization have been around for several decades now, exponential growth of the World Wide Web has put them into the forefront of research in different communities, within which several approaches can be identified: 1) machine learning (algorithms that allow computers to improve their performance based on learning from pre-existing data); 2) document clustering (algorithms for unsupervised document organization and automated topic extraction); and 3) string matching (algorithms that match given strings within larger text). Here the aim was to automatically organize textual documents into hierarchical structures for subject browsing. The string-matching approach was tested using a controlled vocabulary (containing pre-selected and pre-defined authorized terms, each corresponding to only one concept). The results imply that an appropriate controlled vocabulary, with a sufficient number of entry terms designating classes, could in itself be a solution for automated classification. Then, if the same controlled vocabulary had an appropriate hierarchical structure, it would at the same time provide a good browsing structure for the collection of automatically classified documents.
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- Golub, Koraljka, et al.
(author)
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Enhancing social tagging with automated keywords from the Dewey Decimal Classification
- 2014
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In: Journal of Documentation. - : Emerald Group Publishing Limited. - 0022-0418 .- 1758-7379. ; 70:5, s. 801-828
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Journal article (peer-reviewed)abstract
- Purpose To explore the potential of applying the Dewey Decimal Classification as an established knowledge organisation system for enhancing social tagging, with the ultimate purpose of improving subject indexing and information retrieval. Design/methodology/approach Over 11,000 Intute metadata records in politics were used. 28 politics students were each given 4 tasks, in which a total of 60 resources were tagged in two different configurations, one with uncontrolled social tags only and another with uncontrolled social tags as well as suggestions from a controlled vocabulary. The controlled vocabulary was Dewey Decimal Classification (DDC) comprising also mappings from the Library of Congress Subject Headings (LCSH). Findings The results demonstrate the importance of controlled vocabulary suggestions for indexing and retrieval: to help produce ideas of which tags to use, to make it easier to find focus for the tagging, to ensure consistency and to increase the number of access points in retrieval. The value and usefulness of the suggestions proved to be dependent on the quality of the suggestions, both as to conceptual relevance to the user and as to appropriateness of the terminology. Originality/value No research has investigated the enhancement of social tagging with suggestions from the Dewey Decimal Classification, an established knowledge organisation system, in a user trial, comparing social tagging only and social tagging enhanced with the suggestions. This paper is a final reflection on all aspects of the study.
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- Golub, Koraljka
(author)
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Project methodology in subject-based knowledge organization : experiences from the UK
- 2014
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In: Libraries in the Digital Age (LIDA) Proceedings.
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Conference paper (other academic/artistic)abstract
- Project management may involve a wide variety of methodologies depending on numerous factors such as sponsors, scope, stakeholders etc. This particular workshop will draw on experience from three research projects in the area of subject-based knowledge organization, all with the same funder (JISC – Joint Information Systems Committee) but different scopes and deliverables, stakeholders, time frame and international project teams. It will discuss various components of project management such as planning, catering for the funder/stakeholder needs and requirements, communication, delivering on time etc. This will include writing project documentation such as proposals, progress and final reports as well as project-specific deliverables. The workshop will draw on theories of project management as applied to the three specific research projects. While the projects are in the same broad subject area of knowledge organization, it aims to demonstrate general research-project methodology.
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- Golub, Koraljka
(author)
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Subject access to information : an interdisciplinary approach
- 2014. - 1
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Book (peer-reviewed)abstract
- Drawing on the research of experts from the fields of computing and library science, this ground-breaking work will show you how to combine two very different approaches to classification to create more effective, user-friendly information-retrieval systems.A much-needed analysis of the intersection of information organization and technology, this interdisciplinary work encompasses both current and potential methods of organizing information by subject. It examines traditional approaches as they are used in the online environment and explores computer science approaches, such as ontologies and automated tools for subject information organization. Entries review the advantages and disadvantages of the two approaches, showcase their applications today, and project what those applications may be in the future.Content ranges from background on the importance of information organization in general to the importance of information organization by subject in particular. Traditional and modern knowledge-organization systems are covered, as are technological standards, selected topics in automated tools, and interdisciplinary research and cooperation. By tackling varied approaches, the work provides you with an appreciation of the tools—and an understanding of common aims.FeaturesProvides an interdisciplinary overview of current and potential approaches to organizing information by subjectCovers both pure computer science and pure library science topics in easy-to-understand language accessible to audiences from both disciplinesReviews technological standards for representation, storage, and retrieval of varied knowledge-organization systems and their constituent elementsSuggests a collaborative approach that will reduce duplicate efforts and make it easier to find solutions to practical problems
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