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开放获取与论文被引率

已有 4832 次阅读 2008-8-6 14:12 |个人分类:爱思信息

 

实现开放获取(Open Access)之后,你的科研论文可以被其他同行免费获得和阅读,这是否会增加你的论文的被引率(Citation)?康奈尔大学的一个研究表明,二者之间没有直接联系。研究者Philip Davis 说,向读者提供免费阅读的文献资料,背后有各种各样的原因(动机),但如果你认为论文免费以后会增加被引率,那就错了。转贴新闻如下:

http://www.news.cornell.edu/stories/July08/openaccess.cites.sl.html

July 31, 2008
Free articles get read but don't generate more citations, Cornell study finds

When academic articles are "open access" or free online, they get read more often, but they don't -- going against conventional wisdom -- get cited more often in academic literature, finds a new Cornell study.

Philip Davis
Davis

The reason, suggest Cornell graduate student Philip Davis and colleagues, including three Cornell professors, is that most researchers probably already have all the access they need to relevant articles.

"It appears that higher quality articles -- in other words, more citable articles -- are simply made freely available," said Davis. "Previous studies using different methods simply got cause and effect reversed."

The study is published online in the British Medical Journal and will be published in the print edition Aug. 9.

The findings are particularly relevant to academic researchers, because the frequency with which a researcher's work is cited can be a factor in tenure and promotion decisions.

The researchers conducted the first controlled study of open-access publishing, randomly making some journal articles freely available while keeping others available by subscription only, to determine whether increased access to journal articles results in more article downloads and citations.

They found that in the year after the articles were published, open-access articles were downloaded more but were no more likely to be cited than subscription-based articles.

"The established dogma is that freely available scientific articles are cited more because they are read more," said Davis, a former science librarian who designed the study. "We found that open-access publishing may reach more readers than subscription-access publishing, but there is no evidence that freely accessible articles are cited any more than subscription-access articles."

The researchers randomly assigned 247 articles in 11 scientific journals, to free access. They measured how many times these articles were downloaded, the number of unique visitors to each article and how many times each article was cited.

"There were definitely more article downloads for freely accessible articles," said Davis. "Yet nearly half of these downloads were by Internet indexing robots like Google, crawling the Web for free content."

"There are many reasons to provide free access to the literature," said Davis. "A citation advantage, however, is not one of them."

Other co-authors are Bruce V. Lewenstein, professor of communication; Daniel H. Simon, assistant professor of economics; James G. Booth, professor of statistics; and Matthew J.L. Connolly, programmer and analyst, all at Cornell. The research was funded by the Andrew W. Mellon Foundation.



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