Google Scholar's Dramatic Coverage Improvement Five Years after Debut

被引:33
作者
Chen, Xiaotian [1 ]
机构
[1] Bradley Univ, Peoria, IL 61625 USA
关键词
D O I
10.1016/j.serrev.2010.08.002
中图分类号
G25 [图书馆学、图书馆事业]; G35 [情报学、情报工作];
学科分类号
1205 ; 120501 ;
摘要
This article reports a 2010 empirical study using a 2005 study as a base to compare Google Scholar s coverage of scholarly journals with commercial services Through random samples of eight databases the author finds that as of 2010 Google Scholar covers 98 to 100 percent of scholarly journals from both publicly accessible Web contents and from subscription-based databases that Google Scholar partners with In 2005 the coverage of the same databases ranged from 30 to 88 percent The author explores de-duplication of search results by Google Scholar and discusses its impacts on searches and library resources With the dramatic improvement of Google Scholar the uniqueness and effectiveness of subscription-based abstracts and indexes have dramatically changed Serials Review 2010 36 221-226 (C) 2010 Elsevier Inc All rights reserved
引用
收藏
页码:221 / 226
页数:6
相关论文
共 10 条
[1]  
[Anonymous], INFORM PROCESSING MA
[2]   The Declining Value of Subscription-based Abstracting and Indexing Services in the New Knowledge Dissemination Era [J].
Chen, Xiaotian .
SERIALS REVIEW, 2010, 36 (02) :79-85
[3]   Google Scholar:: the pros and the cons [J].
Jacsó, P .
ONLINE INFORMATION REVIEW, 2005, 29 (02) :208-214
[4]   Finding chemistry information using Google Scholar: A comparison with Chemical Abstracts Service [J].
Penrose Library, University of Denver, 2150 East Evans Avenue, Denver, CO 80208, United States .
Sci Technol Libr, 2007, 4 (3-17) :3-17
[5]   Studying Journal Coverage in Google Scholar [J].
Mayr, Philipp ;
Walter, Anne-Kathrin .
JOURNAL OF LIBRARY ADMINISTRATION, 2008, 47 (1-2) :81-99
[6]   Google Scholar's coverage of the engineering literature: An empirical study [J].
Meier, John J. ;
Conkling, Thomas W. .
JOURNAL OF ACADEMIC LIBRARIANSHIP, 2008, 34 (03) :196-201
[7]   The depth and breadth of Google Scholar: An empirical study [J].
Neuhaus, Chris ;
Neuhaus, Ellen ;
Asher, Alan ;
Wrede, Clint .
PORTAL-LIBRARIES AND THE ACADEMY, 2006, 6 (02) :127-141
[8]  
NOTESS GR, 2005, ONLINE, V29
[9]  
Vine R., 2006, Journal of the Medical Library Association, V94, P97
[10]  
wikipedia, Google Scholar