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The JBR offers two basic types of indicators: (a) indicators of impact and (b) indicators of bibliometric quality.
The impact indicators are the basic measures of the performance or the value of a journal. In the JBR, they are primarily used to classify journals into tiers. They are also used when recommending journals for indexing in the leading international citation and bibliographic databases, especially the citation indexes WoS and Scopus. For this purpose, the English version of the JBR is used.
The description of the impact indicators is provided in the following table:
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label
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name and description
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Local citation rate
(SCIndeks)*
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citations
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citation rate in SCIndeks, i.e. the total number of citations in local journals received in the indicated year (regardless of the publication year of the cited paper)
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h-citations
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heterocitations in SCIndeks, i.e. the total number of citations received in the indicated year in other local journals (regardless of the publication year of the cited paper)
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international citation rate
(WoS citation indexes SCI, SSCI, A&HCI, CPCI-S and CPCI-SSH)
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citations
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citation rate in the WoS citation indexes, i.e. the number of citations received in the WoS in the indicated year (regardless of the publication year of the cited paper)
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a-citations
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citation rate in the WoS citation indexes based on authors’ self-citations, i.e. the number of citations in the WoS received in the indicated year from local authors citing their own papers (regardless of the publication year of the cited paper)
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h-citations
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citation rate in the WoS citation indexes based on the citations received from local authors, i.e. the number of citations in the WoS in the indicated year received from local authors citing the papers that are not authored by them, i.e. the papers where they are not members of the author team (regardless of the publication year of the cited paper)
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i-citations
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citation rate in the WoS citation indexes based on the citations received from international authors, i.e. the number of citations in the WoS received in the indicated year from international authors (regardless of the publication year of the cited paper and whether the citing authors cite their own or somebody else’s papers)
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two
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CEON/CEES Impact Factor Two, i.e. the total number of citations received in the indicated year together in SCIndeks and the WoS for the papers published in the previous two years divided by the number of papers published in the journal in the same period, where the citations from WoS-indexed journals are weighted according to the formula: a-citation = 2, h-citation = 3, i-citation = 5**
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five
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CEON/CEES Impact Factor Five, i.e. the total number of heterocitations received in the indicated year together in SCIndeks and the WoS for the papers published in the previous five years divided by the number of papers published in the journal in the same period, where the citations from WoS-indexed journals are weighted according to the formula: a-citation = 2, h-citation = 3, i-citation = 5**
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two
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WoS Impact Factor Two, i.e. the total number of citations received in the WoS citation indexes in the indicated year for the papers published in the previous two years divided by the number of papers published in the journal in the same period; if available, the WoS IF2 value is taken from the JCR; for the journals not covered by the JCR, as well as for the years when a journal was not covered, the WoS IF2 is determined based on the citation counts in the WoS and calculated according to the same formula (CEON/CEES WoS IF2).
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five
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WoS Impact Factor Five, i.e. the total number of citations received in the WoS citation indexes in the indicated year for the papers published in the previous five years divided by the number of papers published in the journal in the same period; if available, the WoS IF5 value is taken from the JCR; for the journals not covered by the JCR, as well as for the years when a journal was not covered, WoS IF5 is determined based on the citation counts in WoS and calculated according to the same formula (CEON/CEES WoS IF5).
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* The SCIndeks analytical database includes all citation counts for the following journals not included in SCIndeks:
- those assigned to tier K52 or higher in the previous years,
- with references included in the corpus used to determine the citation counts for all evaluated journals, and
- rated and ranked equally with SCIndeks journals,
- though their pages are not available in SCIndeks and the JBR, as they are not subscribed to these services,
- due to which, the publishers of these journals do not have access to the JBR.
** where:
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a-citations
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authors’ self-citations, i.e. citations received from local authors citing their own papers (regardless of the publication year of the cited paper)
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h-citations
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local authors’ citations, i.e. the citations received from local authors citing the papers of other local authors, i.e. the papers where they are not members of the author team (regardless of the publication year of the cited work)
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i-citations
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international authors’ citations, i.e. the citations received from the authors affiliated with international institutions (regardless of the publication year of the cited papers and whether the citing authors cite their own or somebody else’s papers)
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The impact indicator scores are shown in the tables:
- Impact for all evaluated journals, where their ranking for individual years is shown,
- Impact for the journals classified in a particular group, where their ranking for individual years is shown, and
- Impact on the page Journal’s bibliometric portrait, where the data are displayed longitudinally, for all years when the journal was covered by the evaluation.
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