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shizishanshang

至尊木虫 (职业作家)

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虫号: 297159
注册: 2006-11-18
性别: GG
专业: 植物学

[交流] 2012 JCR之个人见已有1人参与

去年对2011年SC部分杂志的自引做了分析说明，一年时间过去了，这些杂志有没有收敛一些呢？

生物类（主要指与植物相关）老牌杂志的IF普遍没有什么大变化。如plant cell去年8.987，今年超过9了，达到9.251；然而明年很不幸，应该还会掉到9以下；
plant physiology 由去年6.535略升到今年的6.555，预计明年继续持平，不会有大的起落；plant Journal由前年的6.948降到去年6.16，今年则止跌回升到了6.582，但是明年的结果仍不容乐观，低于Plant physiology是肯定的，能保住6分的金身不破就算阿弥陀佛了；planta则由去年的勉勉强强地保住了3分金身不破（3.0）上升到了3.347,但是明年的IF仍然会在3左右徘徊，超过3的范围不会太高。

下面接着去年观察一下靠自引大幅提高IF的杂志及一些自引率非常低的杂志今年的变化。
先看PLANT CELL TISS ORG，去年IF3.09,自引率53%，去掉自引后IF为1.422.
今年则更离谱， JCR报告见http://admin-apps.webofknowledge ... PLANT+CELL+TISS+ORG
Journal Self Cites Information
The tables show the contribution of the journal's self cites to its impact factor. This information is also represented in the cited journal graph.
Total Cites 5049
Cites to Years Used in
Impact Factor Calculation 1406
Impact Factor 3.633

Self Cites 1615 (31% of 5049)
Self Cites to Years Used
in Impact Factor Calculation 924 (65% of 1406)
Impact Factor without Self Cites 1.245
虽然IF升到了3.633，但是自引率也上升到了65%，去掉自引IF只有1.245，甚至比去年下降。

而MOL BIOL REP，去年IF为2.929，自引率为46％，去掉自引后IF只有1.568；今年自引率明显下降，对应的IF也跟着下降。如下：

Total Cites 5132
Cites to Years Used in
Impact Factor Calculation 3017
Impact Factor 2.506

Self Cites 1296 (25% of 5132)
Self Cites to Years Used
in Impact Factor Calculation 886 (29% of 3017)
Impact Factor without Self Cites 1.770
自引率为29%，去掉自引后IF为1.77。

相比之下，变本加厉的是PLANT MOL BIOL REP，http://admin-apps.webofknowledge ... =PLANT+MOL+BIOL+REP
去年的是 2.453，自引率57%，去掉自引后IF为1.047；今年IF则达到惊人的5.319，是怎么飙升上去的呢？
看下面的统计数据就一目了然了。
Journal Self Cites Information
The tables show the contribution of the journal's self cites to its impact factor. This information is also represented in the cited journal graph.
Total Cites 2985
Cites to Years Used in
Impact Factor Calculation 984
Impact Factor 5.319

Self Cites 847 (28% of 2985)
Self Cites to Years Used
in Impact Factor Calculation 701 (71% of 984)
Impact Factor without Self Cites 1.530

自引率高达71％，去掉自引率后其IF只有1.53；

老牌杂志Planta,http://admin-apps.webofknowledge ... ;amp;journal=PLANTA

Total Cites 15450
Cites to Years Used in
Impact Factor Calculation 1429
Impact Factor 3.347

Self Cites 457 (2% of 15450)
Self Cites to Years Used
in Impact Factor Calculation 89 (6% of 1429)
Impact Factor without Self Cites 3.138

自引率6％，去掉自引后其IF仍达3.138，是PLANT CELL TISS ORG去掉自引后的IF的2.5倍，是PLANT MOL BIOL REP的两倍，足见JCR的部分IF水分有多高。
另外如
PLANT SCI,http://admin-apps.webofknowledge ... p;journal=PLANT+SCI

Journal Self Cites Information
The tables show the contribution of the journal's self cites to its impact factor. This information is also represented in the cited journal graph.
Total Cites 9736
Cites to Years Used in
Impact Factor Calculation 932
Impact Factor 2.922

Self Cites 228 (2% of 9736)
Self Cites to Years Used
in Impact Factor Calculation 53 (5% of 932)
Impact Factor without Self Cites 2.755

自引率仍然很低，需要指出的是，明年PLANT SCI的IF则会明显上升，会超过3.5以上。

PLANT PHYSIOLOGY AND BIOCHEMISTRY,自引率略有上升
http://admin-apps.webofknowledge ... PLANT+PHYSIOL+BIOCH

Total Cites 4894
Cites to Years Used in
Impact Factor Calculation 874
Impact Factor 2.775

Self Cites 225 (4% of 4894)
Self Cites to Years Used
in Impact Factor Calculation 74 (8% of 874)
Impact Factor without Self Cites 2.540

去年的惊天杂志：Energy Education Science and Technology
http://admin-apps.webofknowledge ... NERGY+EDUC+SCI+TECH
Journal Self Cites Information
The tables show the contribution of the journal's self cites to its impact factor. This information is also represented in the cited journal graph.
Total Cites 2992
Cites to Years Used in
Impact Factor Calculation 1964
Impact Factor 31.677

Self Cites 2674 (89% of 2992)
Self Cites to Years Used
in Impact Factor Calculation 1785 (90% of 1964)
Impact Factor without Self Cites 2.887

Back to Top 牵涉到分家等，在JCR里面查询不到，不加以评价。

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