Here is a quick summary of what to expect from the three best known citation analysis tools. University of Michigan Library Research Guides. Ask a Librarian. Information on how to use library resources for citation analysis. This includes information about impact factors, journal rankings, altmetrics and how to find who has cited an article. Rebecca Welzenbach.
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Defining Citation Analysis What is it? Why use it? To find out how much impact a particular article has had by showing which authors based some work upon it or cited it as an example within their own papers.
To find out more about a field or topic; i. Comparing Tools for Citation Analysis Comparing Citation Analysis Sources Here is a quick summary of what to expect from the three best known citation analysis tools. Subject Focus. Theoretically, all disciplines. Over 12, peer-reviewed journals Over 1, open access journals 30, books with 10, added annually Over 2. Over 21, peer-reviewed journals Over trade publications Over 4, open access journals Overbook titles Over 7.
Some journals from Some journals from the s. Some citations as far back as the s and s. Unknown but generally quick. Excellent search limits by discipline The most well-known and most used resource for citation analysis Citation analysis goes back farther than Scopus.
Excellent resource for finding cited references It's free May find more obscure references. Cannot search by date any earlier than Too much irrelevant content in search results Few options for sorting results.Journals are usually evaluated by means of citation metrics.
Today two major journal-based metrics are in competition, i. The Impact Factor has had a long reign in research and academics. Beginning in as a byproduct of the Science Citation Index, it provided a unique, objective means of rating journals based on their citations and quickly became a standard measure of journal quality.
It was in that Elsevier launched a new journal metric, CiteScore that takes direct aim at the hegemony of the Impact Factor, a product of Clarivate Analytics formerly part of Thomson Reuters. The two companies already have competing bibliographical citation databases in Scopus Elsevier and the Web of Science Clarivate. Journal Impact Factor is a well-known citation metric that was created in the s. The Journal Impact Factor is published through the Journal Citation Reports and is calculated from data compiled in the Web of Science database, thus covering approximately 11, journals with an indexed 2.
Elsevier launched a new citation metric in and is calculated with the 22, journals indexed in Scopus, which contains approximately 70 million articles.
Now, CiteScore has arrived to compete with the Impact Factor, luring users in with these benefits:. Similar Principles: Both metrics are based on similar principles: the number of citations received by a journal in a given year to papers published in a given period of time, over the number of papers published by that journal in that time period.
Period of Time for Calculation : Journal Impact Factor calculates the metric using the two previous years as a basis for the citation count, CiteScore uses a three-year period. Areas such as Immunology or Genetics and Molecular Biology cite a substantially greater proportion of articles in the two-year window than papers in Arts and Humanities or Social Sciences.
Transparency in Calculation : Calculations in Journal Impact Factor are based on hidden data, they are opaque, and their quality used to calculate the Impact Factor was criticized. Easy access to the complete list of cited and citing records used to calculate a given Impact Factor is not possible, even with full access to the Web of Science.
However, citing and cited documents are available through a one-link distance for a Scopus-subscribing institution or individual in CiteScore.
Number of Published Articles in Given Period of Time : Scientometricians have difficulties identifying the number of articles published by a journal in a year. In contrast, CiteScore includes all the documents published in a journal. There are more articles to cite but also fewer citations received, which reinforces the lack of transparency of the previously mentioned Journal Impact Factor. Journal Coverage : The Web of Science covers 11, journals compared to almost 23, journals by Elsevier.
Despite the greater coverage of CiteScore, journal selection criteria are also not perfect.Display journals with at least. Download data. Recommendations and reports : Morbidity and mortality weekly report. Surveillance summaries : Morbidity and mortality weekly report. Nature Reviews Materials. Quarterly Journal of Economics. Nature Reviews Genetics. Nature Reviews Molecular Cell Biology. Nature Reviews Cancer.
Nature Reviews Immunology. Journal of Political Economy. Chemical Reviews.
Nature Genetics. Nature Reviews Neuroscience. Nature Methods. New England Journal of Medicine. The Lancet Oncology. Journal of Finance. Nature Reviews Microbiology. Journal of Statistical Software. Annual Review of Biochemistry. Reviews of Modern Physics. Annual Review of Astronomy and Astrophysics.
Nature Nanotechnology.CiteScore metrics from Scopus are comprehensive, transparent, current and free metrics for serial titles in Scopus. Search or filter below to find the sources of interest and see the associated metrics. Report using these annual metrics and track the progress of metrics with CiteScore Tracker Be sure to use qualitative as well as the below quantitative inputs when presenting your research impact, and always use more than one metric for the quantitative part.
CiteScore is a simple way of measuring the citation impact of serial titles such as journals. Serial titles are defined as titles which publish on a regular basis i.
CiteScore calculates the average number of citations received in a calendar year by all items published in that journal in the preceding three years. The calendar year to which a serial title's issues are assigned is determined by their cover dates, and not the dates that the serial issues were made available online. The method of calculation for CiteScore is illustrated below. Articles-in-press are indexed in Scopus for some publishers, but are not included in the CiteScore calculation.
Articles-in-press in Scopus are not processed in the same way as regular Scopus items. For example, in Scopus the cited reference list is not available for articles-in-press and therefore they do not contribute citations to other documents in the same way as regular Scopus articles.
Also, Scopus does not receive articles-in-press from all serial titles and publishers. We therefore exclude articles-in-press from the CiteScore calculation to offer consistency and avoid bias between serial titles and publishers.
Abstracts are not indexed in Scopus and are not included in the denominator of the CiteScore calculation.
Citations to abstracts from other indexed papers are also not to be included in the numerator of the CiteScore calculation. There is no possibility of inconsistency in the types of documents included in the numerator and denominator in CiteScore.
All documents that are covered by Scopus as an integral part of the serial title are included in the CiteScore calculation. CiteScore metrics not CiteScore Tracker metrics are reported once per year, and do not change, so they are suitable for reporting the citation impact of a serial title.
The CiteScore metrics are created from a snapshot of Scopus, and represent the relative performance of serial titles at that point in time. The metrics for - have been calculated by recreating the Scopus database as it was at that time. The CiteScore metrics were calculated on 23 May using a data cut taken approximately 2 weeks earlier.
CiteScore Tracker is calculated in the same way as CiteScore, but for the current year rather than previous, complete years. The CiteScore Tracker calculation is updated every month, as a current indication of a title's performance. The numerator citation count of the current year's metric builds up every month as additional citations are received, so that the construction is consistent with the construction of the complete year CiteScore.
CiteScore Tracker is not based on a rolling 12 month window. The metric values will be fixed in the spring, and then the Tracker will be calculated for the subsequent year. For example, CiteScore will be complete and fixed in the spring, when CiteScore Tracker will start to be displayed in Scopus. CiteScore metrics are calculated from Scopus data.
CiteScore vs. Impact Factor
They are calculated from the same version of Scopus. As explained in this paperthe JCR links citations to the journal level, and is different from the Web of Science which links citations to the individual article level; it is not always possible to link a citation to the individual article, but it may still be possible to link it to the journal. Approved corrections to the Scopus database will be incorporated into CiteScore Tracker at the next monthly refresh.
Successful corrections will be used in the CiteScore recalculation which will be released around September of the same year. If you have calculated the CiteScore Tracker value yourself, the difference is due to the currency of CiteScore Tracker lagging behind that of the Scopus database. CiteScore Tracker is updated every month, and Scopus data are updated every day. If you have calculated CiteScore for a complete year, such as CiteScore or CiteScorethe difference is due to these metrics representing a snapshot in time of the Scopus database Scopus that is updated daily.
We value your privacy. Asked 8th Aug, Ranvir Kaur. How to check impact factor of Scopus indexed journals?
Scopus indexed journals give SJR or H index, but how to find impact factor for scopus indexed journals? H Index. Academic Journals. Journal Impact Factor. Most recent answer. Elizabeth Kordyum. Kholodny Botany Institute. Popular Answers 1. Adrian Gambier.
Scopus is not longer using the Impact factor of Thomson-Reuters. This is a new metric computed as. The CiteScore gives in general a number higher than the Impact Factor. All Answers Muayyad Ahmad. University of Jordan. If you log to the following link you will see an example for how Scopus rank the journals.
Emad Kamil Hussein. Dear my colleague. Firstly I do agree with our colleague Dr. Muayyad AhmadPlease visit my RG profile I have posted many presentations related to your kind question. Regards, Emad. Dear Dr. Boussetta Mohammed. Good morning, excellent post as usual, I do agree with you, these sites are very trusted and powerful and it gives full details about journal evaluation metrics. Snejanka Penkova. University of Puerto Rico at Rio Piedras.
Also you can view IF of the journals for all years subscribed by your institution. Saber A. Al-Azhar University. For example. Journal of the Egyptian Society of Parasitology.Scopus covers nearly 36, titles 22, active titles and 13, inactive titles from approximately 11, publishers, of which 34, are peer-reviewed journals in top-level subject fields: life sciencessocial sciencesphysical sciences and health sciences.
It covers three types of sources: book seriesjournalsand trade journals. All journals covered in the Scopus database, regardless of who they are published under, are reviewed each year to ensure high quality standards are maintained.
Searches in Scopus also incorporate searches of patent databases. Evaluating ease of use and coverage of Scopus and the Web of Science WOSa study concluded that "Scopus is easy to navigate, even for the novice user. The ability to search both forward and backward from a particular citation would be very helpful to the researcher.
The multidisciplinary aspect allows the researcher to easily search outside of his discipline" and "One advantage of WOS over Scopus is the depth of coverage, with the full WOS database going back to and Scopus going back to However, Scopus and WOS complement each other as neither resource is all inclusive. Scopus also offers author profiles which cover affiliations, number of publications and their bibliographic data, referencesand details on the number of citations each published document has received.
It has alerting features that allows registered users to track changes to a profile and a facility to calculate authors' h -index. Ina free website, Scopus CiteScore,  was introduced.
Since Elsevier is the owner of Scopus and is also one of the main international publishers of scientific journals, an independent and international Scopus Content Selection and Advisory Board was established in to prevent a potential conflict of interest in the choice of journals to be included in the database and to maintain an open and transparent content coverage policy, regardless of publisher.
From Wikipedia, the free encyclopedia. For other uses, see Scopus disambiguation.Scopus Tutorial: Overview of Journal Metrics in Scopus
This section needs to be updated. Please update this article to reflect recent events or newly available information. July Biomedical Digital Libraries. Retrieved 7 May Scopus Info. Retrieved 4 September Retrieved 4 July Elsevier minority stake. Academic publishing. Academic journal Scientific journal Open access journal Public health journal.
Scholarly paper Review article Position paper Working paper Literature review. Categories : Bibliographic databases and indexes Elsevier Citation indices Library cataloging and classification. Hidden categories: Use dmy dates from August Wikipedia articles in need of updating from July All Wikipedia articles in need of updating Articles containing potentially dated statements from All articles containing potentially dated statements Articles containing potentially dated statements from Official website different in Wikidata and Wikipedia.
Namespaces Article Talk.CiteScore CS of an academic journal is a measure reflecting the yearly average number of citations to recent articles published in that journal. This journal evaluation metric was launched in December by Elsevier as an alternative to the generally used JCR impact factors IFs. While CiteScore and JCR impact factor are similar in their definition, CiteScore is based on the citations recorded in the Scopus database rather than in JCR, and those citations are collected for articles published in the preceding three years instead of two or five.
In any given year, the CiteScore of a journal is the number of citations, received in that year, of articles published in that journal during the three preceding years, divided by the total number of "citable items" published in that journal during the three preceding years: .
For example, Nature had a CiteScore of Note that CiteScores are reported in ; they cannot be calculated until all of the publications have been processed by the indexing agency. CiteScores are typically released in late May,  approximately one month earlier than the JCR impact factors. CiteScore was designed to compete with the two-year JCR impact factor, which is currently the most widely used journal metric.
Another important difference is the definition of the "number of publications" or "citable items". While JCR excludes all kind of minor items, such as editorials, notes, corrigenda, retractions and discussions, all articles without exception are counted in CiteScore. The reason for such non-exclusion is that definition of "editorials" is vague and often questionable. As a result, CiteScore values are typically lower than the impact factor, because most editorial material receives much fewer citations than regular articles and reviews.