Search (47 results, page 3 of 3)

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Abstract

Purpose - The purpose of this paper is to explore the potential of applying the Dewey Decimal Classification (DDC) as an established knowledge organization system (KOS) 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. Totally, 28 politics students were each given four 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 DDC comprising also mappings from the Library of Congress Subject Headings. 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 DDC, an established KOS, 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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Abstract

Purpose - This paper aims to discuss and test the claim that user-based tagging allows for access to a wider variety of viewpoints than is found using other forms of online searching. Design/methodology/approach - A general overview of the nature of weblogs and user-based tagging is given, along with other relevant concepts. A case is then analyzed where viewpoints towards a specific issue are searched for using both tag searching (Technorati) and general search engine searching (Google and Google Blog Search). Findings - The claim to greater accessibility through user-based tagging is not overtly supported with these experiments. Further results for both general and tag-specific searching goes against some common assumptions about the types of content found on weblogs as opposed to more general web sites. Research limitations/implications - User-based tagging is still not widespread enough to give conclusive data for analysis. As this changes, further research in this area, using a variety of search subjects, is warranted. Originality/value - Although proponents of user-based tagging attribute many qualities to the practice, these qualities have not been properly documented or demonstrated. This paper partially rectifies this gap by testing one of the claims made, that of accessibility to alternate views, thus adding to the discussion on tagging for both researchers and other interested parties.

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Abstract

The question of whether tags can be useful in the process of information retrieval was examined in this pilot study. Many tags are subject related and could work well as index terms or entry vocabulary; however, folksonomies also include relationships that are traditionally not included in controlled vocabularies including affective or time and task related tags and the user name of the tagger. Participants searched a social bookmarking tool, specialising in academic articles (CiteULike), and an online journal database (Pubmed) for articles relevant to a given information request. Screen capture software was used to collect participant actions and a semi-structured interview asked them to describe their search process. Preliminary results showed that participants did use tags in their search process, as a guide to searching and as hyperlinks to potentially useful articles. However, participants also used controlled vocabularies in the journal database to locate useful search terms and links to related articles supplied by Pubmed. Additionally, participants reported using user names of taggers and group names to help select resources by relevance. The inclusion of subjective and social information from the taggers is very different from the traditional objectivity of indexing and was reported as an asset by a number of participants. This study suggests that while users value social and subjective factors when searching, they also find utility in objective factors such as subject headings. Most importantly, users are interested in the ability of systems to connect them with related articles whether via subject access or other means.

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Content

This paper is derived from the author's doctoral dissertation "Usefulness of Social Tagging in Organizing and Providing Access An Analysis of Indexing Consistency and Quality." The author is deeply grateful to her dissertation committee-Dr. Linda C. Smith chairperson, Drs. Allen Renear, Miles Efron and John Unsworth. Vgl.: http://www.ergon-verlag.de/isko_ko/downloads/ko_39_2012_4_a.pdf.

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Abstract

The cultural heritage sector has embraced social tagging as a way to increase both access to online content and to engage users with their digital collections. In this article, we build on two current lines of research. (a) We use Waisda?, an existing labeling game, to add time-based annotations to content. (b) In this context, we investigate the role of experts in human-based computation (nichesourcing). We report on a small-scale experiment in which we applied Waisda? to content from film archives. We study the differences in the type of time-based tags between experts and novices for film clips in a crowdsourcing setting. The findings show high similarity in the number and type of tags (mostly factual). In the less frequent tags, however, experts used more domain-specific terms. We conclude that competitive games are not suited to elicit real expert-level descriptions. We also confirm that providing guidelines, based on conceptual frameworks that are more suited to moving images in a time-based fashion, could result in increasing the quality of the tags, thus allowing for creating more tag-based innovative services for online audiovisual heritage.

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Date

22. 6.2009 9:15:45

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Abstract

From their earliest encounters with the Web, museums have seen an opportunity to move beyond uni-directional communication into an environment that engages their users and reflects a multiplicity of perspectives. Shedding the "Unassailable Voice" (Walsh 1997) in favor of many "Points of View" (Sledge 1995) has challenged traditional museum approaches to the creation and delivery of content. Novel approaches are required in order to develop and sustain user engagement (Durbin 2004). New models of exhibit creation that democratize the curatorial functions of object selection and interpretation offer one way of opening up the museum (Coldicutt and Streten 2005). Another is to use the museum as a forum and focus for community story-telling (Howard, Pratty et al. 2005). Unfortunately, museum collections remain relatively inaccessible even when 'made available' through searchable on-line databases. Museum documentation seldom satisfies the on-line access needs of the broad public, both because it is written using professional terminology and because it may not address what is important to - or remembered by - the museum visitor. For example, an exhibition now on-line at The Metropolitan Museum of Art acknowledges "Coco" Chanel only in the brief, textual introduction (The Metropolitan Museum of Art 2005a). All of the images of her delightful fashion designs are attributed to "Gabrielle Chanel" (The Metropolitan Museum of Art 2005a). Interfaces that organize collections along axes of time or place - such of that of the Timeline of Art History (The Metropolitan Museum of Art 2005e) - often fail to match users' world-views, despite the care that went into their structuring or their significant pedagogical utility. Critically, as professionals working with art museums we realize that when cataloguers and curators describe works of art, they usually do not include the "subject" of the image itself. Simply put, we rarely answer the question "What is it a picture of?" Unfortunately, visitors will often remember a work based on its visual characteristics, only to find that Web-based searches for any of the things they recall do not produce results.