Methodology

The COBISS/SciMet (COBISS Science Metrics) portal is intended for monitoring scientific production by Slovenian authors. It includes data on publications by Slovenian authors from various information resources and databases, which are aggregated, processed and can be viewed, using unique methodology , e.g. Web of Science (WoS), Scopus, COBISS, SICRIS, COBIB.SI, CONOR.SI, SNIP and JCR. Portal enables easy and quick searching, viewing, analysing and processing of data on publications of Slovene authors, which were published in serials, indexed by the WoS or the Scopus database, for the users who need this information and data (e.g. researchers or research groups in the field of bibliometrics, citation analysis, evaluation of Slovene research publishing, etc.). Fields of research are displayed according to the Classification of ARRS; categories of journals are displayed from the JCR and SNIP databases; quartiles of the IF (Impact Factor) distribution the journals occupy for a scientific field and the data on above-average scientific excellence in the last 5 years are displayed from The list of foreign databases.For publications with DOI identifier, the open access visibility display (attention score) provided by the Altmetric and PlumX is included, and for publications from Open Scienec Slovenia portal, the number of views and downloads are displayed. For publications from open-access journals, click the link to move to the journal's record including information about the publisher licencing conditions and the archiving policy for each journal published in the  SHERPA/RoMEO information service. For publications with DOI identifier, the links to open access free version of full-text, provided by unpaywall, are displayed.

In contrast to data in SICRIS system, the COBISS/SciMet portal contains data from WoS and Scopus also for authors provided with the registration code by IZUM, or with the identification number of author from the CONOR.SI authority database,for Slovene universities, and for serials, regardless of work typology, time slot or other restrictions in tenders. As some foreign researchers are also registered in the SICRIS system, the portal also contains publications of these authors. Different from the SICRIS system, self-citations and the number of pure citations per author are determined based on the WoS or Scopus databases (authors from the WoS or Scopus databases are taken into consideration as all the authors are not always entered in the COBISS system)

Links between bibliographic records for publications in the WoS or Scopus databases and corresponding bibliographic records in the COBIB.SI shared database are established automatically daily. Once established, links are saved within the portal, which means that when displaying data from the WoS or Scopus system, you do not have to perform online search for each bibliographic unit in these systems or search for pair records. For linked publications, citation data is weekly updated.

Within COBISS/SciMet, a link is established automatically between the researcher identifiers in the SICRIS system and the author identifiers in the CONOR.SI authority database for names with the following identifiers: Scopus Author ID, ORCID and ResearchersID. The purpose of these identifiers is to uniquely identify authors, which makes it possible to recognize a particular author's publications even if cited in different ways. In the Scopus system, Scopus Author ID for authors is determined automatically, whereas authors must acquire themselves ResearcherID, which is used in the WoS system, and ORCID by registering at relevant portals. Once they do that, it is possible to establish a link with the relevant identifiers in the SICRIS system and in the CONOR.SI authority database.

Citation databases, Impact factor, Authors identifiers, AltmetricsPublications

COBISS Authors' Identifiers

Summary data

On the basis of links and citation data on individual publications, summary data is prepared daily:

  • for entities registered in the SICRIS system (researchers, groups of researchers, current projects and programmes, research organizations),
  • for authors with registration code assigned by IZUM – links to data on authors with a researcher’s code or registration code are in the Researchers column,
  • for other authors with the identification number of author from the CONOR.SI authority database,
  • for publications linked to the WoS or Scopus database,
  • for serials which contain these publications (data on serials are from the COBIB.SI shared database),
  • for Slovene universities with registration code:
    • UNI-001 – University of Ljubljana
    • UNI-002 – University of Maribor
    • UNI-003 – University of Nova Gorica
    • UNI-004 – University of Primorska

A distinction is made between two basic types of statistics: by a year of publication  and by a year of citation of publications (regardless of the year of publication – the statistics can also contain an publication older than the starting year of citation, if it was cited from that year onwards). The lowest year of publication is 1970. In statistics by a year of publication, only citations from the starting year of publication are taken into account while citations of publications published before this year are not.

Some statistics and lists contain data for publications linked to correlating records in the WoS and/or Scopus database, while some contain only data on publications or entities with links only with one database (e.g. list of researchers in the Scopus database, without links to records in the WoS databases, or vice versa, list of researchers in the WoS databases, without links to records in the Scopus database).

Because of the size, files are separated to those with data for linked publications with citations (publication has at least one citation in the WoS or Scopus database) and those with data for linked publications without citations (publcation has no citation, not in the WoS databases, nor in the Scopus database). Lists of linked publications by scientific discipline are made on the basis of the scientific discipline of the publication in the COBISS system evident from the UDC number (Universal Decimal Classification).

Statistics and lists are prepared in formats HTML, XML and TXT, and with data suitable for further analysis and processing (Downloading and editing files). Along with links to files with statistics and lists, informative sizes of these are displayed. To make data processing easier, lines are multiplied for authors in some lists of linked publications in the TXT format.

Lists of 100 most frequently cited researchers and other Slovenian authors as well as research groups, projects, programmes, research organisations and Slovenian universities are created daily. The lists are sorted by the number of pure citations in Scopus / WoS over the past ten years (regardless of the publication year).

Summary dataTOP 100

SICRIS

Displays

For entities registered in the SICRIS system (researchers, groups of researchers, current projects and programmes, research organizations), for authors with the registration number, for other authors with the identification number of author from the CONOR.SI authority database, for Slovene universities, for serials and publications from COBISS system, it is possible to prepare online displays of citation data (TC – number of citations, AC – number of self-citations, CI – number of pure citations, CIAu  number of pure citations per author, number of linked publications and h-index) using the web form, direct links or web services.

The report can be created for several entities, registered in the SICRIS system, for several authors with registration codes, or for several serials or publications from COBISS system at once. The report will be created for the deduplicated set of all publications of all those entities, authors and serials or publications from COBISS system. From this set, it is also possible to exclude publications of one or more entities, registered in the SICRIS system, universities, authors with registration codes or seriars and publications from COBISS system.

The following can be included in the displays for the selected database (WoS or Scopus):

  • citation data display with the number of cited publications and the average number of pure citations by year of citation,
  • citation data display with the number of linked publications and the average number of pure citations per publication by publication year,
  • graphic display by year of citation and/or publication year,
  • citation data display with the number of linked publications and the average number of pure citations per publication by journal that includes these publications,
  • bibliography with h-index and, as an option, with the number of cited publications by year of citation for a publication (citations by year), and with the list of authors' codes and codes of groups of authors from the SICRIS system or from the universities that authors of a publication belong to (co-authorship).

Before preparing displays you can select records by typology:

  • scientific publications with typology 1.01, 1.02, 1.03, 1.06, 1.07 or 1.08,
  • all categorized publications,
  • publications with selected typologies,
  • all publications for which a link between the records in the COBIB.SI database and the records in the WoS or Scopus database is established.

The displays will include all publications published in the input time period (from to) for publication years and cited in the input time period (from to) for years of citation. The oldest publication year is 1970. By selecting relevant publication time period and time period of citations, citations can be displayed, obtained within the relevant time period within the publication time period or outside it. Examples:

COBISS/SciMet display