Journal Citation Reports, the database that provides journal impact factors and rankings of journals in a field, has released data for the 2011 edition. Reports are also available for previous years. Use this database to find the impact factor or Eigenfactor for any of the 10,500 journals indexed by Web of Science. This database is available through the databases page on the Levy Library website by clicking on the Web of Science link.
For help finding a journal’s impact factor, use the library journal impact factors guide. To calculate your personal impact factor or H-index for 2011, follow the instructions in the library Individual Impact Factor guide. As always, if you have questions about how to do this, contact us at Ask a Librarian.
Thompson Reuters has created Researcher ID, an online registry where you can build a publication list of your published research. When you sign up for Researcher ID, you'll be able to make lists public or private. You will be assigned a unique Researcher ID number that will differentiate you from other researchers who may share your name and initials. And, you can generate citation metrics including total times citated, average times citated and your h-index.
Build your profile and then add publications by importing them from Web of Science and/or reference citation software such as EndNote.
Citation databases create author profiles where all of that author’s citations are collected. This lets authors see all their works in one place for CV updates and metrics calculations. However, due to changes in affiliation, name format and many other reasons, there are frequently more than one profile for the same author. This is your chance to fix problems like:
- Which name variations should be grouped together in your profile? Which spelling variation should be used as the primary name under which all documents are listed?
- Are all the articles listed as yours by you? Are all of your articles listed?
You can help clean up these records and make sure that all of your articles are credited to you under one profile. It’s a good idea to suggest changes to your profile now. That way when it’s time to find every article you’ve published or check your h factor, you’re ready to go.
And, you can do it right from the databases…
Here are instructions for cleaning up author records in Scopus:
1. In Scopus, click on the author search tab and search for yourself.
2. Identify your records. Place a checkmark next to each one. Then click on Request to merge authors.
3. Ensure these are the records you’d like to merge. Then click Start.
4. Select the name you would like to use as the primary name under which all documents will be listed. Then click next.
5. Review the documents listed. If you need to edit the list, click on Edit Documents.
6. Click on the red buttons to exclude articles or the green buttons to include articles. When you're finished click next.
7. Fill in your contact details and any information that may assist the Scopus folks in verifying your submission. Click Submit.
Voila! You’re finished. Pat yourself on the back. It takes about 6-8 weeks for changes to appear in the database.
We're pleased to announce a new addition to our databases list: Sciverse Scopus. Scopus is a large interdisciplinary database that covers the gamut of scholarly publication. It also provides some nice tools to let you see which articles cite the paper that you are looking at, compare the prominence of different journals by looking at citation patterns, and calculate metrics like the h-index. Sounds a lot like Web of Science? Yes! You can do a lot of similar things with the two databases, though they have very different interfaces and search different content. For example:
The Web of Science record for the 1976 article by Raskin and Knittle entitled "Ice-cream headache and orthostatic symptoms in patients with migraine", from the journal Headache, shows that it has been cited by 44 other articles. Finding the record in Scopus for the same article shows only 28 citations. One reason: although you can find articles in Scopus from decades ago, citation information is only included from 1996 onwards. So Web of Science can tell you that N. Bird cited Raskin's article in 1992, but Scopus can't.
It's not only the different citation dates that are different between these two databases though: because they don't index all the same journals, you'll see differences in citation counts even in recent articles. For example, N.M. Pugno's 2007 Journal of Physics – Condensed Matter article, "Towards a Spiderman suit: large invisible cables and self-cleaning releasable superadhesive materials" shows more citations in Web of Science, while A. Taylor's 2006 Academy of Management Journal article "Superman or Fantastic Four? Knowledge and experience in innnovative teams" shows more citations in Scopus.
There are also some articles that you'll only find in one database or the other: only Web of Science can give you citation information for Hume, M (2005) "Unsinkable – Is Loretta Lynn country music's Scarlett O'Hara?" Journal of Country Music 24(2):16-23, while only Scopus can tell you about Ramakrishnan, PA (2004) "'Unsinkable' boat has foam centre" Reinforced Plastics 48(7).
The moral? Try both, and decide which you prefer. If you need citation information from before 1996, Web of Science is the way to go. If you don't, Scopus has an interface that many people find more intuitive, plus a very handy algorithm that helps with those difficult author searches (maybe another blog post on this later!). And, if you want to be as comprehensive as possible in creating a list of who's citing an article, use both, as they'll each give you slightly different results (I'd suggest adding Google Scholar to your search strategy as well!).
As with all our resources, please let us know if you have questions or comments. Happy searching!
Need to find Impact Factors, highly cited papers, or papers that aren't in PubMed? Web of Science is the place to go. It can be a fussy database to use though – not all of its features are obvious, and it asks for some pretty specific input formats. We're here to help! We've added a couple of Web of Science workshops to our classes schedule: the first one is tomorrow from 11:00 – 12:00 in the Library. You can register for it at http://librarycf.mssm.edu/levy/classes/.
If you can't make the class, we also have a Web of Science tutorial that you can work through on your own, as well as quick guides to general searching and cited reference searching.
The Impact Factor, a metric that the Institute for Scientific Information (now Thomson-Reuters) calculates for select journals based on numbers of recent citations to articles, is as important in modern academia as it is controversial. The Impact Factors of journals a researcher publishes in may be used, with varying degrees of weight, in decisions about promotions, tenure, green card applications and more. Critics argue that the metric can oversimplify the complexity of scholarly research and publishing and present a skewed view of what topics and journals are influential. ISI has recently provided some additions to Journal Citation Reports, the database used to find Impact Factors, to provide more information and context for the metric. New features allow the user to find a 5-year journal Impact Factor as well as the standard 2-year Impact Factor. The effects of self-citations can be seen by removing them from the calculation, and a box plot can be displayed indicating how a particular journal's Impact Factor stacks up against others in the same field. Also provided are Eigenfactor scores, a more complicated metric produced by researchers at the University of Washington. Go to Journal Citation Reports to see the new features, and take a look at some of the sources below if you're interested in learning more about the Impact Factor, the controversy, and other measures of scholarly influence.
Pendlebury, DA. The use and misuse of journal metrics and other citation indicators. Arch. Immunol. Ther. Exp. 2009;75:1-11. (PMID 19219526)
Garfield, E. The history and meaning of the journal impact factor. JAMA. 2006;295:90-93.
Journal Citation Reports, the database that provides journal impact factors and rankings of journals in a field, has released data for the 2006 edition. Reports are also available for previous years. Access Journal Citation Reports from the library’s database page under the category Citation Indexes. For more information on searching for impact factors, see our web guide here.