Definition of Cancer Research: Journals, Titles, Abstracts or Keywords?
Definition of Cancer Research: Journals, Titles, Abstracts or Keywords?
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DOI：
10.14429/djlit.31.5.1189
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发表时间：
2011-09-01
影响因子：
0.9
通讯作者：
Lewison, Grant
中科院分区：
文献类型：
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作者：
Lewison, Grant
英国癌症研究中心定义了三种用于识别癌症研究论文的“过滤器”，并由四位专家对其进行了解读，对此进行了比较。第一个过滤器只基于专业期刊，召回率低得令人无法接受。第二个过滤器同时基于期刊和标题词，准确率和召回率都在0.9以上。第三个过滤器是基于摘要中的词和/或论文中提供的关键词：它将召回率提高到几乎统一，但准确率严重下降，存在许多误报。根据最近几年15个国家在科学网上的产出，比较了这三个过滤版本，在某些情况下，它们的表现(论文数量和引文数量)给出了不同的指标，这可能为科学政策提供相互矛盾的信息。
Three versions of a 'filter' used to identify papers on cancer research, as defined by Cancer Research, UK, and interpreted by four experts, have been compared. The first filter was based only on specialist journals and had unacceptably low recall. The second filter was based both on journals and on title words, and had both precision and recall above 0.9. The third filter was based additionally on words in the abstract and/or keywords provided in the paper: it improved the recall to almost unity but the precision was severely degraded, with many false positives. The three filter versions were compared in terms of the outputs of 15 countries in the Web of Science in recent years, and in some instances, gave differing indicators of their performance (numbers of papers and citations) which could give conflicting messages for science policy.