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shizishanshang至尊木蟲 (職業(yè)作家)
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[交流]
大家交流一下自己本領域內(nèi)雜志的自引率,是不是沒有最高,只有更高 已有2人參與
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我自己先來吧。 生物類(主要指與植物相關)老牌雜志的IF普遍沒有什么增加,甚至有的還略微下降。如plant cell去年9.396,今年破9了,跌到8.987了; plant physiology 由去年6.451略升到今年的6.535;plant Journal去年6.948,今年則降到6.16;planta算是勉勉強強地保住了3分金身破,正好3.0。 與此相反,往常一些名不見經(jīng)傳的低分雜志,今年的IF卻一路飆升,如PLANT CELL TISS ORG去年1.243,今年3.09,超過了老牌雜志PLANTA;PLANT MOL BIOL REP去年0.825,今年卻達到了2.453;MOL BIOL REP去年1.875,今年卻飆到了2.929,幾近3。這是為什么呢? 難道這些老牌雜志都跟不上潮流了,落后于時代了? 仔細研究了一下JCR報告,才發(fā)現(xiàn)了其中的奧秘。總的來說,這3個雜志大幅提高IF的方法無他,唯自引也! 先看PLANT CELL TISS ORG,JCR報告見http://admin-apps.webofknowledge ... PLANT+CELL+TISS+ORG。如下圖: Journal Self Cites 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 5379 Cites to Years Used in Impact Factor Calculation 1026 Impact Factor 3.090 Self Cites 1375 (25% of 5379) Self Cites to Years Used in Impact Factor Calculation 554 (53% of 1026) Impact Factor without Self Cites 1.422 自引率達到53%之多,去掉自引后IF只有1.422; 而MOL BIOL REP,JCR報告http://admin-apps.webofknowledge ... ournal=MOL+BIOL+REP Journal Self Cites 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 3604 Cites to Years Used in Impact Factor Calculation 2481 Impact Factor 2.929 Self Cites 1366 (37% of 3604) Self Cites to Years Used in Impact Factor Calculation 1153 (46% of 2481) Impact Factor without Self Cites 1.568 自引率為46%,去掉自引后IF只有1.568; 更離譜的是PLANT MOL BIOL REP,http://admin-apps.webofknowledge ... =PLANT+MOL+BIOL+REP Journal Self Cites 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 2239 Cites to Years Used in Impact Factor Calculation 363 Impact Factor 2.453 Self Cites 276 (12% of 2239) Self Cites to Years Used in Impact Factor Calculation 208 (57% of 363) Impact Factor without Self Cites 1.047 自引率高達57%,去掉自引率后其IF只有1.047; 反觀其它老牌雜志,如Planta,http://admin-apps.webofknowledge ... &journal=PLANTA Journal Self Cites 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 14779 Cites to Years Used in Impact Factor Calculation 1314 Impact Factor 3.000 Self Cites 384 (2% of 14779) Self Cites to Years Used in Impact Factor Calculation 64 (4% of 1314) Impact Factor without Self Cites 2.854 自引率只有4%,去掉自引后其IF仍達到2.854,正好是PLANT CELL TISS ORG的兩倍,足見JCR的部分IF水分有多高。 隨便再舉幾個雜志,PLANT SCI,http://admin-apps.webofknowledge ... p;journal=PLANT+SCI Journal Self Cites 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 9422 Cites to Years Used in Impact Factor Calculation 963 Impact Factor 2.945 Self Cites 212 (2% of 9422) Self Cites to Years Used in Impact Factor Calculation 37 (3% of 963) Impact Factor without Self Cites 2.832 PLANT PHYSIOLOGY AND BIOCHEMISTRY, http://admin-apps.webofknowledge ... PLANT+PHYSIOL+BIOCH, Journal Self Cites 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 4501 Cites to Years Used in Impact Factor Calculation 786 Impact Factor 2.838 Self Cites 140 (3% of 4501) Self Cites to Years Used in Impact Factor Calculation 27 (3% of 786) Impact Factor without Self Cites 2.740 .在網(wǎng)友的指點下,又發(fā)現(xiàn)了一個驚天雜志:Energy Education Science and Technology http://admin-apps.webofknowledge ... NERGY+EDUC+SCI+TECH Journal Self Cites 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 Journal Immediacy Index 單靠自引,能降一個不到3的雜志提高到31點多,自引率達到90%之多,這是多大的魄力,何等的瘋狂! 看到這,大家應該知道有些雜志IF突然升高的奧秘了,我不明白的是,為什么Thomson Reuters 對此置若罔聞呢?這樣對那些老老實實的雜志是否不公呢? 這樣的IF還有什么可信度,還有什么參考價值? |
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金蟲 (正式寫手)
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