Google Scholar's coverage of the engineering literature: An empirical study
Google Scholar's coverage of the engineering literature: An empirical study
复制标题
DOI:
10.1016/j.acalib.2008.03.002
复制
发表时间:
2008-05-01
影响因子:
2.6
通讯作者:
Conkling, Thomas W.
中科院分区:
文献类型:
--
作者:
Meier, John J.;Conkling, Thomas W.
Google Scholar's coverage of the engineering literature is analyzed by comparing its contents with those of Compendex, the premier engineering database. Records retrieved from Compendex were searched in Google Scholar, and a decade by decade comparison was done from the 1950s through 2007. The results show that the percentage of records appearing in Google Scholar increased over time, approaching a 90 percent matching rate for materials published after 1990.