Étiquette : OpenAlex

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EN

Visible as Journals, Invisible as Publishers: Limitations of OpenAlex for Analysing University Publishing

Author : Maryna Nazarovets

This study presents the results of an exploratory audit of publisher-affiliation metadata for a selected sample of university-published journals in OpenAlex. A corpus of 60 UJs from 10 countries, chosen to represent low-visibility publishing environments, was examined. Journal records retrieved from OpenAlex in January 2025 and January 2026 were manually verified against Ulrichsweb, the journals’ websites, and the ISSN Portal, in order to assess the journals’ indexing status and the presence of publisher-related metadata.

While OpenAlex indexes a significant proportion of the sampled journals, including titles not covered by major commercial indexing systems, coverage remains incomplete, even for active journals. Furthermore, structured publisher affiliation was rarely found within the sample.

In January 2025, only 9% of indexed journals were linked to a publisher entity via OpenAlex’s publisher-affiliation fields. By January 2026, publisher names appeared more frequently as unstructured text, while the proportion of journals linked to a publisher entity remained largely unchanged.

These results indicate that university journals are often visible in OpenAlex as sources, but are insufficiently represented at the publisher level, limiting the interpretability of institutional publishing activity and obscuring the role of university publishing in the broader scholarly landscape.

URL : Visible as Journals, Invisible as Publishers: Limitations of OpenAlex for Analysing University Publishing

DOI : https://doi.org/10.1002/leap.2061

 

Catégories
EN

Comparison of OpenAlex and Scopus coverage of German institutions’ publications in top-tier journals

Authors : Andrey Lovakov, Ivan Sterligov

OpenAlex has recently emerged as a leading alternative to proprietary bibliometric sources. However, concerns remain regarding the quality of its metadata, especially the institutional profiles which are crucial for evaluating organizations. This study assesses the quality of affiliation data in OpenAlex using German research institutions.

Publications from top-tier journals were analyzed and institutional publication counts in OpenAlex were systematically compared with counts in Scopus. The results show that OpenAlex generally contains more publications at the journal level, reflecting its broader coverage. However, institutional publication counts in OpenAlex are consistently lower, indicating missing or incorrectly assigned affiliations.

Nevertheless, the correlations between institutional outputs in both databases are very high, suggesting that relative institutional rankings remain stable. These findings suggest that OpenAlex is suitable for comparative institutional analyses in academic research but requires further improvement in affiliation metadata before it can be used for evaluation contexts that rely on absolute publication counts.

DOI : https://doi.org/10.48550/arXiv.2605.01337

Catégories
EN

The ‘Big Three’ of Scientific Information: A comparative bibliometric review of Web of Science, Scopus, and OpenAlex

Authors : Daniel Torres-Salinas, Wenceslao Arroyo-Machado

The present comparative study examines the three main multidisciplinary bibliographic databases, Web of Science Core Collection, Scopus, and OpenAlex, with the aim of providing up-to-date evidence on coverage, metadata quality, and functional features to help inform strategic decisions in research assessment.

The report is structured into two complementary methodological sections. First, it presents a systematic review of recent scholarly literature that investigates record volume, open-access coverage, linguistic diversity, reference coverage, and metadata quality; this is followed by an original bibliometric analysis of the 2015-2024 period that explores longitudinal distribution, document types, thematic profiles, linguistic differences, and overlap between databases. The text concludes with a ten-point executive summary and five recommendations.

DOI : https://doi.org/10.48550/arXiv.2601.21908

Catégories
EN

Geographical and disciplinary coverage of open access journals: OpenAlex, Scopus, and WoS

Authors : Abdelghani Maddi, Marion Maisonobe, Chérifa Boukacem-Zeghmouri

This study aims to compare the geographical and disciplinary coverage of OA journals in three databases: OpenAlex, Scopus and the Web of Science (WoS). We used the Directory of Open Access Scholarly Resources (ROAD), provided by the ISSN International Centre, as a reference to identify OA active journals (as of May 2024). Among the 62,701 active OA journals listed in ROAD, the WoS indexes 6,157 journals, Scopus indexes 7,351, while OpenAlex indexes 34,217.

A striking observation is the presence of 24,976 OA journals exclusively in OpenAlex, whereas only 182 journals are exclusively present in the WoS and 373 in Scopus. The geographical analysis focuses on two levels: continents and countries. As for disciplinary comparison, we use the ten disciplinary levels of the ROAD database. Moreover, our findings reveal a similarity in OA journal coverage between the WoS and Scopus. However, while OpenAlex offers better inclusivity and indexing, it is not without biases.

The WoS and Scopus predictably favor journals from Europe, North America and Oceania. Although OpenAlex presents a much more balanced indexing, certain regions and countries remain relatively underrepresented. Typically, Africa is proportionally as under-represented in OpenAlex as it is in Scopus, and some emerging countries are proportionally less represented in OpenAlex than in the WoS and Scopus.

These results underscore a marked similarity in OA journal indexing between WoS and Scopus, while OpenAlex aligns more closely with the distribution observed in the ROAD database, although it also exhibits some representational biases.

URL : Geographical and disciplinary coverage of open access journals: OpenAlex, Scopus, and WoS

DOI : https://doi.org/10.1371/journal.pone.0320347

 

Catégories
EN

Evaluating the linguistic coverage of OpenAlex: An assessment of metadata accuracy and completeness

Authors : Lucía Céspedes, Diego Kozlowski, Carolina Pradier, Maxime Holmberg Sainte-Marie, Natsumi Solange Shokida, Pierre Benz,
Constance Poitras, Anton Boudreau Ninkov, Saeideh Ebrahimy, Philips Ayeni, Sarra Filali, Bing Li, Vincent Larivière

Clarivate’s Web of Science (WoS) and Elsevier’s Scopus have been for decades the main sources of bibliometric information. Although highly curated, these closed, proprietary databases are largely biased toward English-language publications, underestimating the use of other languages in research dissemination.

Launched in 2022, OpenAlex promised comprehensive, inclusive, and open-source research information. While already in use by scholars and research institutions, the quality of its metadata is currently still being assessed. This paper contributes to this literature by assessing the completeness and accuracy of OpenAlex’s metadata related to language, through a comparison with WoS, as well as an in-depth manual validation of a sample of 6836 articles.

Results show that OpenAlex exhibits a far more balanced linguistic coverage than WoS. However, language metadata are not always accurate, which leads OpenAlex to overestimate the place of English while underestimating that of other languages. If used critically, OpenAlex can provide comprehensive and representative analyses of languages used for scholarly publishing, but more work is needed at infrastructural level to ensure the quality of metadata on language.

URL : Evaluating the linguistic coverage of OpenAlex: An assessment of metadata accuracy and completeness

DOI : https://doi.org/10.1002/asi.24979

Catégories
EN

Open Science Alternatives to Scopus and the Web of Science: A Case Study in Regional Resilience

Authors : Irina D. Turgel, Olga A. Chernova

The recent years have seen increasing support for open science in academic circles. However, the large number of scientometric databases calls into question the comparability of the search and analysis tools they provide.

Using the subject area of regional resilience as an example, in this study, the aim was to analyze the capabilities of widely used databases to serve as alternatives to Scopus and Web of Science in solving research problems.

As alternatives, in the present article, the following open, free scientometric databases were considered: AMiner, Wizdom.ai, the Lens, Dimensions, and OpenAlex. Their capabilities were demonstrated for the subject area under study, and the obtained results were compared.

The study results showed that alternative databases provide essential data on trends in scientific development. It is noteworthy that they largely replicate the provided data, supplementing and expanding them by using different types of data sources. However, open databases do not guarantee a high quality of materials and exhibit a relatively low level of metadata.

Thus, it is premature to abandon the use of Scopus and Web of Science in research activities. Since scientometric databases were developed in different contexts, they are characterized by structural and functional heterogeneity, which complicates their comparison.

Therefore, a selective approach should be adopted for the choice of scientometric databases, taking into account financial and other constraints, as well as the specifics of research problems.

URL : Open Science Alternatives to Scopus and the Web of Science: A Case Study in Regional Resilience

DOI : https://doi.org/10.3390/publications12040043