Welcome to our Blog! Here, you’ll find insights from our work as Data Analysts in the domain of scholarly communication. With this blog, we want to engage with the broader community about how to support data-driven workflows and decision-making around scholarly communication.
We are based at the Göttingen State and University Library, one of the largest academic libraries in Germany. We are using various data analytics tools in our everyday work and contribute to R and Python package developments and training activities. In this blog, you’ll find news and case-studies around:
We want to thank Maëlle Salmon for encouraging us to start a blog about our work. As a technical framework for the blog, we are using Distill for R Markdown, a new web publishing format optimized for scientific and technical writing.
Dr. Anne Hobert, Nick Haupka, Sophia Dörner, Najko Jahn
Jahn, N. (2025). Estimating transformative agreement impact on hybrid open access: A comparative large-scale study using Scopus, Web of Science and open metadata. https://arxiv.org/abs/2504.15038
Haupka, N., Culbert, J., Schniedermann, A., Jahn, N., Mayr, P. (2024). Analysis of the Publication and Document Types in OpenAlex, Web of Science, Scopus, Pubmed and Semantic Scholar. https://arxiv.org/abs/2406.15154
Culbert, J., Hobert, A., Jahn, N., Haupka, N., Schmidt, M., Donner, P., Mayr, P. (2025). Reference Coverage Analysis of OpenAlex compared to Web of Science and Scopus. Scientometrics. https://doi.org/10.1007/s11192-025-05293-3
Jahn, N. (2025). How open are hybrid journals included in transformative agreements? Quantitative Science Studies. https://doi.org/10.1162/qss_a_00348
Haupka, N. (2024). Analyse der Abdeckung wissenschaftlicher Publikationen auf Semantic Scholar im Kontext von Open Access. Bibliothek Forschung und Praxis, 48(2), 362–373. https://doi.org/10.1515/bfp-2023-0057
Taubert, N., Hobert, A., Jahn, N., Bruns, A., & Iravani, E. (2024). Understanding differences of the OA uptake within the German University landscape (2010–2020): Part 2—repository-provided OA. Scientometrics. https://doi.org/10.1007/s11192-024-05003-5
Taubert, N., Hobert, A., Jahn, N., Bruns, A., & Iravani, E. (2023). Understanding differences of the OA uptake within the German university landscape (2010–2020): Part 1—journal-based OA. Scientometrics, 128(6), 3601–3625. https://doi.org/10.1007/s11192-023-04716-3
Fraser, N., Hobert, A., Jahn, N., Mayr, P., & Peters, I. (2023). No deal: German researchers’ publishing and citing behaviors after Big Deal negotiations with Elsevier. Quantitative Science Studies, 4(2), 325–352. https://doi.org/10.1162/qss_a_00255
Haupka, N., Jahn, N., & Hobert, N. (2022). Praxisbericht Big Scholarly Data an der SUB Göttingen. LIBREAS. Library Ideas, 41 (2022). https://libreas.eu/ausgabe41/haupka/
Jahn, N., Matthias, L., & Laakso, M. (2022). Toward transparency of hybrid open access through publisher‐provided metadata: An article‐level study of Elsevier. Journal of the Association for Information Science and Technology, 73(1), 104–118. https://doi.org/10.1002/asi.24549
Jahn, N., Held, M., Walter, H., Haupka, N., & Hillenkötter, K. (2022). HOAD: Data Analytics für mehr Transparenz bei Open-Access-Transformationsverträgen. ABI Technik, 42(1), 64–69. https://doi.org/10.1515/abitech-2022-0007
Stisser, A., Jahn, N., & Schmidt, B. (2022). Stand und Perspektiven bibliometriegestützter Open-Access-Services an Universitäten in Deutschland. Bibliothek Forschung und Praxis, 46(2), 275–283. https://doi.org/10.1515/bfp-2021-0098
Hobert, A., Jahn, N., Mayr, P., Schmidt, B., & Taubert, N. (2021). Open access uptake in Germany 2010–2018: adoption in a diverse research landscape. Scientometrics, 126(12), 9751–9777. https://doi.org/10.1007/s11192-021-04002-0
Laakso, M., Matthias, L., & Jahn, N. (2021). Open is not forever: A study of vanished open access journals. Journal of the Association for Information Science and Technology, 72(9), 1099–1112. https://doi.org/10.1002/asi.24460 (JASIST Best Paper Award 2022. Featured in Nature, Nature, Nature, Science, CNN, DLF)
Jahn, N., Hobert, A., & Haupka, N. (2021). Entwicklung und Typologie des Datendiensts Unpaywall. Bibliothek Forschung und Praxis, 45(2), 293–303. https://doi.org/10.1515/bfp-2020-0115
Matthias, L., Jahn, N., & Laakso, M. (2019). The Two-Way Street of Open Access Journal Publishing: Flip It and Reverse It. Publications, 7(2), 23. https://doi.org/10.3390/publications7020023
Haupka, N. (2021). Analyse der Entwicklung des Open Access-Discovery-Services Unpaywall seit 2018 [Bachelor Thesis, Hochschule Hannover]. https://doi.org/10.25968/opus-1899
R-Packages (selection):
Jahn, N. europepmc: R Interface to the Europe PubMed Central RESTful Web Service. https://CRAN.R-project.org/package=europepmc | https://docs.ropensci.org/europepmc/
Chamberlain, S., Zhu, H., Jahn, N., Boettiger, C., Ram, K. rcrossref: Client for Various ‘CrossRef’ ‘APIs’. https://CRAN.R-project.org/package=rcrossref https://docs.ropensci.org/rcrossref/
Jahn, N (2022). roadoi: Find Free Versions of Scholarly Publications via Unpaywall. https://CRAN.R-project.org/package=roadoi | https://docs.ropensci.org/roadoi/.
Python-Packages (selection):
Haupka, N., Morrison, P. unpywall - Interfacing the Unpaywall API with Python. https://pypi.org/project/unpywall | https://unpywall.readthedocs.io/
Dashboards (selection):
Hybrid Open Access Dashboard (HOAD). See our blog post: https://www.coalition-s.org/blog/introducing-the-hybrid-open-access-dashboard-hoad/
metacheck: Open Access Metadata Compliance Checker
Open Access uptake in Germany 2010-2018: Interactive Supplement
If you see mistakes or want to suggest changes, please create an issue on the source repository.
Text and figures are licensed under Creative Commons Attribution CC BY 4.0. Source code is available at https://github.com/subugoe/scholcomm_analytics, unless otherwise noted. The figures that have been reused from other sources don't fall under this license and can be recognized by a note in their caption: "Figure from ...".