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  4. A study of the influence of task familiarity on user behaviors and performance with a MeSH term suggestion interface for PubMed bibliographic search
 
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A study of the influence of task familiarity on user behaviors and performance with a MeSH term suggestion interface for PubMed bibliographic search

Journal
International Journal of Medical Informatics
Journal Volume
82
Journal Issue
9
Pages
832-843
Date Issued
2013
Date
2013
Author(s)
MUH-CHYUN TANG  
DOI
10.1016/j.ijmedinf.2013.04.005
URI
http://ntur.lib.ntu.edu.tw//handle/246246/284678
Abstract
Purpose: Previous research has shown that information seekers in biomedical domain need more support in formulating their queries. A user study was conducted to evaluate the effectiveness of a metadata based query suggestion interface for PubMed bibliographic search. The study also investigated the impact of search task familiarity on search behaviors and the effectiveness of the interface. Methods: A real user, user search request and real system approach was used for the study. Unlike tradition IR evaluation, where assigned tasks were used, the participants were asked to search requests of their own. Forty-four researchers in Health Sciences participated in the evaluation - each conducted two research requests of their own, alternately with the proposed interface and the PubMed baseline. Several performance criteria were measured to assess the potential benefits of the experimental interface, including users' assessment of their original and eventual queries, the perceived usefulness of the interfaces, satisfaction with the search results, and the average relevance score of the saved records. Results: The results show that, when searching for an unfamiliar topic, users were more likely to change their queries, indicating the effect of familiarity on search behaviors. The results also show that the interface scored higher on several of the performance criteria, such as the "goodness" of the queries, perceived usefulness, and user satisfaction. Furthermore, in line with our hypothesis, the proposed interface was relatively more effective when less familiar search requests were attempted. Conclusions: Results indicate that there is a selective compatibility between search familiarity and search interface. One implication of the research for system evaluation is the importance of taking into consideration task familiarity when assessing the effectiveness of interactive IR systems. ? 2013 Elsevier Ireland Ltd.
Subjects
Bibliographic; Databases; Information storage and retrieval/UT; Medical subject headings
SDGs

[SDGs]SDG3

Other Subjects
Bibliographic; Biomedical domain; Information storage and retrieval; Medical subject headings; Perceived usefulness; Performance criterion; Potential benefits; System evaluation; Database systems; Research; Behavioral research; article; behavior; bibliographic database; clinical research; computer interface; crossover procedure; documentation; evaluation; experimental therapy; human; hypothesis; information processing; information seeking; Medical Subject Headings; Medline; performance; priority journal; questionnaire; satisfaction; scientist; task performance
Type
journal article

臺大位居世界頂尖大學之列,為永久珍藏及向國際展現本校豐碩的研究成果及學術能量,圖書館整合機構典藏(NTUR)與學術庫(AH)不同功能平台,成為臺大學術典藏NTU scholars。期能整合研究能量、促進交流合作、保存學術產出、推廣研究成果。

To permanently archive and promote researcher profiles and scholarly works, Library integrates the services of “NTU Repository” with “Academic Hub” to form NTU Scholars.

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開放取用是從使用者角度提升資訊取用性的社會運動,應用在學術研究上是透過將研究著作公開供使用者自由取閱,以促進學術傳播及因應期刊訂購費用逐年攀升。同時可加速研究發展、提升研究影響力,NTU Scholars即為本校的開放取用典藏(OA Archive)平台。(點選深入了解OA)

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