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Sunday, May 15 • 2:00pm - 3:00pm
Poster Session 1: Poster Board Number 108

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Poster Board Number: 108
Title: Next Generation Discovery Systems and Biomedical Literature: Is Discovery Improved?
Objective: This study examines how metasearch and other next generation discovery system features impact discovery of biomedical literature. The inclusion of records from PubMed in WorldCat’s central index means biomedical article resources can be searched along with traditional library catalog records. With the browsing of results emphasized over advanced searching, how effective is keyword search for the biomedical researcher?
Methods: This study examines the effectiveness of metasearch as implemented in WorldCat Local for retrieving a subset of widely cited clinical literature. A great advantage to functional requirements for bibliographic records (FRBR)-ized catalogs such as WorldCat Local is the ability to integrate article-level records for metasearching. The faceted discovery method seems easy for novice users but may prove frustrating to the expert user. The methods developed by Vanhecke et al. (2007) was replicated. Searches were conducted using the list of forty-nine highly cited medical publications and the keywords created by Ioannidis (2005), and the frequency of deriving the desired article measured. Importance of recall, relevance, and precision in the next generation discovery environment, and to today’s biomedical researcher, are discussed.
Results: For all searches, resources listed on the first page of results were primarily relevant. In the majority of searches, keywords from Ioannidis failed to retrieve the specific article, whereas searches using the first four article title keywords were always successful. In some cases, only a spelling change was needed in the Ioannidis keywords, while other searches needed a reduction in keywords.
Conclusions: Keyword searching can be successful in WorldCat Local both for finding specific articles and for finding materials by topic. The user is best served by limiting their starting keywords and varying their search terms. The importance of recall, relevance, and precision must be reexamined in the next generation discovery environment. Today’s busy researcher or clinician is likely to search using keywords only. Recall and precision may be less important than the relevance of the first pages of results. User testing is still needed to fully evaluate next generation discovery.
Author: Linda C. K. Crook, Student, Certificate of Advanced Study in Health Sciences Librarianship, University of Pittsburgh, Pittsburgh, PA, and Health Sciences Librarian, Research Services, Washington State University, Pullman, WA


Sunday May 15, 2011 2:00pm - 3:00pm
Exhibit Hall A - Minneapolis Convention Center

Attendees (23)




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