Do "altmetrics" correlate with citations? Extensive comparison of altmetric indicators with citations from a multidisciplinary perspective
Do "altmetrics" correlate with citations? Extensive comparison of altmetric indicators with citations from a multidisciplinary perspective
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DOI：
10.1002/asi.23309
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发表时间：
2015-10-01
影响因子：
3.5
通讯作者：
Wouters, Paul
中科院分区：
文献类型：
--
作者：
Costas, Rodrigo;Zahedi, Zohreh;Wouters, Paul
对Altmetric.com提供的不同替代指标在科学领域的存在进行了广泛的分析，特别关注它们与引文的关系。我们的研究结果证实，社交媒体替代计数的存在和密度在科学出版物中仍然很低，而且不太频繁，15%-24%的出版物呈现一些替代活动，集中在最近的出版物中，尽管它们的存在随着时间的推移而增加。来自社会科学、人文科学、医学和生命科学的出版物显示出最高的替代度量，表明它们在这些领域的潜在价值和兴趣。对替代指标和引用之间关系的分析证实了之前的正相关主张，但相对较弱，因此支持替代指标不反映与引用相同的影响的观点。此外，替代计数并不总是比期刊引用分数更好地过滤高被引出版物。Altmetric分数（特别是在博客中被提及的次数）能够比期刊引用分数（JCS）更精确地识别高被引用的出版物，但它们的召回率较低。本文强调了替代计量作为引文分析的补充工具的价值，但建议开展更多的研究来梳理替代计量指标在研究评价中的潜在意义和价值。
An extensive analysis of the presence of different altmetric indicators provided by Altmetric.com across scientific fields is presented, particularly focusing on their relationship with citations. Our results confirm that the presence and density of social media altmetric counts are still very low and not very frequent among scientific publications, with 15%-24% of the publications presenting some altmetric activity and concentrated on the most recent publications, although their presence is increasing over time. Publications from the social sciences, humanities, and the medical and life sciences show the highest presence of altmetrics, indicating their potential value and interest for these fields. The analysis of the relationships between altmetrics and citations confirms previous claims of positive correlations but is relatively weak, thus supporting the idea that altmetrics do not reflect the same kind of impact as citations. Also, altmetric counts do not always present a better filtering of highly-cited publications than journal citation scores. Altmetric scores (particularly mentions in blogs) are able to identify highly-cited publications with higher levels of precision than journal citation scores (JCS), but they have a lower level of recall. The value of altmetrics as a complementary tool of citation analysis is highlighted, although more research is suggested to disentangle the potential meaning and value of altmetric indicators for research evaluation.