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Subject: Summon eller EBSCO discovery service?
From: Jan Szczepanski <[log in to unmask]>
Reply-To:BIBLIST - Topics in Nordic research library user services <[log in to unmask]>
Date:Mon, 16 Mar 2015 11:45:17 +0100
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Svaret tycks vara, att för nybörjare ärGoogle Scholar bäst. Detta
enligt en färsk amerikansk undersökning.

Summon, EBSCO Discovery Service, and Google Scholar: A Comparison of
Search Performance Using User Queries
Karen Ciccone, John Vickery

Evidence Based Library and Information Practice Vol. 10 No1

http://ejournals.library.ualberta.ca/index.php/EBLIP/article/view/23845

Abstract

Objectives - To evaluate and compare the results produced by Summon
and EBSCO Discovery
Service (EDS) for the types of searches typically performed by library
users at North Carolina State University. Also, to compare the
performance of these products to Google Scholar for the same types of
searches.

Methods - A study was conducted to compare the search performance of
two web-scale discovery services: ProQuest’s Summon and EBSCO
Discovery Service (EDS). The performance of these services was also
compared to Google Scholar. A sample of 183 actual user searches,
randomly selected from the NCSU Libraries’ 2013 Summon search logs,
was used for the study. For each query, searches were performed in
Summon, EDS, and Google Scholar. The results of known-item searches
were compared for retrieval of the known item, and the top ten results
of topical searches were compared for the number of relevant results.

Results - There was no significant difference in the results between
Summon and EDS for either known-item or topical searches. There was
also no significant difference between the performance of the two
discovery services and Google Scholar for known-item searches.
However, Google Scholar outperformed both discovery services for
topical searches.

Conclusions - There was no significant difference in the relevance of
search results between Summon and EDS. Thus, any decision to purchase
one of those products over the other should be based upon other
considerations (e.g., technical issues, cost, customer service, or
user interface).

Jan

PS: Evidence Based Library and Information Practice finns vid 11
bibliotek men märkligt nog inte i Uppsala eller Göteborg trots att den
finns i DOAJ. Märkliga äro bibliotekens vägar i dessa dagar.

-- 
Jan Szczepański
F.d Förste bibliotekarie och chef för f.d Avdelningen för humaniora,
vid f.d. Centralbiblioteket, Göteborgs universitetsbibliotek
E-post: [log in to unmask]

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