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Same time next year? JCR 2012 Data are finalized

by ‎09-30-2013 06:32 PM - edited ‎10-02-2013 03:49 PM

Reload of JCR 2012 data is complete;  no further updates will be made. 


In March of 2013, we began production of the new JCR data.  Over 55 million cited references were extracted from items indexed in the year 2012.  Over 283,000 lines of algorithms are used to analyze and aggregate these references for the JCR metrics.  


10,854 titles appear in the first release of JCR.  The full list of titles is available here.

379 journals will be posting their first Journal Impact Factor this year.  See the list here.


The JCR Production team has also prepared information regarding the suppression of journals from the JCR.  A longer post on this subject will follow in the next few days.  In the meanwhile, users concerned about this subject can access information here - click on the link "Learn more about the JCR Suppression Process".

The JCR data are reloaded to accommodate late-receipted journals and a small number of corrections.


JCR 2011 is now available

by on ‎06-28-2012 01:00 PM

Thomson Reuters has released the JCR 2011 Journal Impact Factors


JCR 2011 Release date announced: June 28

by on ‎06-22-2012 12:48 PM

Mark your calendar!


Change is good

by ‎09-21-2011 09:30 PM - edited ‎10-03-2011 09:37 AM

The current list of updates in the JCR Notices has 146 titles listed.  Were there really that many mistakes?  Nope. 


JCR 2010 data are now available

by on ‎06-28-2011 12:30 PM

What's new in JCR 2010?  Everything.


Understanding the Journal Impact Factor

by on ‎04-01-2011 10:43 AM

Think you know how the Journal Impact Factor numerator is established?  Hold your horses...



by on ‎11-15-2010 12:11 PM

New Global Research Report published on state of scientific research in the US


Notice anything new in the JCR?

STI Conference 2010

by on ‎09-09-2010 05:42 PM

Live from Leiden

ScienceWatch Special Topic: Oil Spills (citation analysis)

by ‎09-07-2010 04:25 PM - edited ‎09-07-2010 04:36 PM

Discuss the ScienceWatch Oil Spill feature. Share your insights into the science of oil contamination, analysis, and remediation. Read more...

In June 2009 we launched a new series of reports aimed at examining the changing landscape of the global research base. Our latest report, Global Research Report: Japan, found that despite its long-standing position as an innovation leader, Japan’s overall national trend points to a comparatively flat research output and declining share of the world’s annual scientific literature.  What is behind this underperformance? And what challenges, or opportunities, are on the horizon?


Download the report here then share your thoughts below.


Do you see a looming threat to Japan’s prominence, or is there a less ominous reason behind this trend of change? What do you believe may be behind this static performance? And what might Japan’s leaders do to turn this around?

On June 17 the 2009 Journal Citation Reports® (JCR) was released. This edition of JCR includes more regional journals than ever before. And now we want to hear from you! Read more...

What does it mean to be #2 in Impact?

by on ‎06-17-2010 01:17 PM

Avid users of the Journal Citation Reports® (JCR) might notice something surprising in the 2009 data. Read more...

Web of Science Coverage Expansion

by on ‎04-27-2010 01:42 PM

In recent years we have witnessed an explosion in the production and availability of scholarly research results. This growth is reflected in the gradual expansion of journal coverage in the Web of Science. Read more...

Live, web-based training on best practices for using citation metrics for research evaluation. Read more...

Live, web-based training on best practices for using citation metrics for research evalution. Read more...

2009 Nobel Prize Predictions

by on ‎10-05-2009 04:34 PM

The results are starting to roll in...

Update to 2008 Journal Citation Reports

by on ‎10-05-2009 02:52 PM

Each year, Thomson Reuters receives feedback from publishers after publication of the annual Journal Citation Reports in June. This feedback is carefully and systematically reviewed. As a result, selected JCR data may be modified and adjustments made to metrics such as the Journal Impact Factor. A re-evaluation of 2008 JCR data has been completed, and changes have been made to 55 journals.  To see a full list of affected titles, a PDF is available for download here.

Understanding the Journal Impact Factor

by ‎09-09-2009 04:06 PM - edited ‎06-06-2012 02:15 PM

Over the years, Thomson Reuters employees have answered thousands of questions about the Journal Impact Factor, how it is calculated, what does it mean, how are the data prepared. The September 9, 2009 issue of JAMA-Journal of the American Medical Association contains a Commentary prepared by members of Thomson Reuters Journal Citation Reports team.


Understanding Citation Metrics for Research Evaluation


Friday, September 18, 2009
10:00 a.m. New York


Friday, September 18, 2009
2:00 p.m. New York



Live, web-based training on best practices for using citation metrics for research evalution. Read more...

New Titles in 2008 JCR

by on ‎07-15-2009 12:23 PM

Table of new titles now available

Training Classes - New Metrics in the 2008 Journal Citation Reports®

by ‎07-07-2009 10:41 AM - edited ‎07-07-2009 10:57 AM

Live Web-based training classes introducing to the the new metrics in the 2008 JCR Read more...

Training Classes - Understanding CItation Metrics for Research Evaluation

by ‎07-06-2009 04:30 PM - edited ‎07-07-2009 10:51 AM

Live web-based training on best practices for using citation metrics for research evalution. Read more...

Available now! 2008 Journal Citation Reports®

by ‎06-16-2009 04:25 PM - edited ‎06-30-2009 05:09 PM

The highly-anticipated release of the latest edition of JCR has been released Read more...

In anticipation of the Nobel Prize announcements for 2008, which will begin on October 6, Thomson Reuters (NYSE: TRI) is once again revealing its own list of Laureates — in this case, Thomson Reuters Citation Laureates. Read more...

The Journal Impact Factor is a proprietary metric, published annually by the Scientific business of Thomson Reuters via Journal Citation Reports (JCR). JCR provides a number of metrics and quantitative tools for ranking, evaluating, and categorizing and comparing journals. Read more...

In late 2005, Jorge E. Hirsch, Professor of Physics at the University of California, San Diego, published an article describing the h-index, which, he called “a useful index to characterize the scientific output of a researcher.” Read more...