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Reposted by Lutz Bornmann

Lars Lott @larslott.bsky.social · Sep 5

Is research performance related to academic freedom? A preprint co-authored with @lutzb.bsky.social conducts a large-scale empirical analysis on the national level to this question. osf.io/2mh8f #academicfreedom #AcademicFreedomIndex Short 🧵

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Lutz Bornmann @lutzb.bsky.social · Jul 29

scholarlykitchen.sspnet.org/2025/07/29/g...

Guest Post – Metrics Sonification of Team Size Effects on Disruptive Research - The Scholarly Kitchen

Data sonification is the process of translating data into sound. Here, Lutz Bornmann and Christian Leibel present the sonified results of a recent analysis of the impact of scientific team size on inn...

scholarlykitchen.sspnet.org

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Lutz Bornmann @lutzb.bsky.social · Jun 5

doi.org/10.48550/arX...

Introducing multiverse analysis to bibliometrics: The case of team size effects on disruptive research

Although bibliometrics has become an essential tool in the evaluation of research performance, bibliometric analyses are sensitive to a range of methodological choices. Subtle choices in data selectio...

doi.org

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Reposted by Lutz Bornmann

bibliometraf.bsky.social @bibliometraf.bsky.social · May 30

How similar are field-normalized citation impact scores obtained from OpenAlex and three popular commercial databases? An empirical comparison based on large German universities.

link.springer.com/article/10.1...

OpenAlex is a freely available bibliographic database that can be used for bibliometric studies. In this study, we compared certain field-normalized citation scores (NCS) from OpenAlex with those from...

link.springer.com

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Lutz Bornmann @lutzb.bsky.social · May 22

www.nature.com/articles/d41...

Are groundbreaking science discoveries becoming harder to find?

Researchers are arguing over whether ‘disruptive’ or ‘novel’ science is waning – and how to remedy the problem.

www.nature.com

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Reposted by Lutz Bornmann

Isidro F. Aguillo @isidroaguillo.bsky.social · Apr 18

Prof Gunnar Sivertsen (NIFU, Norway) has been awarded the Derek de Solla Price Medal 2025 of the international journal Scientometrics.
The awarding ceremony will take place during the 20th ISSI Conference in Yerevan (Armenia) to be held on 23–27 June 2025.
www.issi-society.org/awards/derek...

Derek de Solla Price Memorial Medal | International Society for Scientometrics and Informetrics

The International Society for Informetrics and Scientometrics (ISSI) is an international association of scholars and professionals active in the interdisciplinary study science of science, science com...

www.issi-society.org

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Lutz Bornmann @lutzb.bsky.social · Apr 20

Metrics sonification: The introduction of new ways to present bibliometric data using publication data of Loet Leydesdorff as an example. https://rdcu.be/eiqC4

Reposted by Lutz Bornmann

Max Planck Institute for the History of Science @mpiwg.bsky.social · Apr 16

The MPIWG’s Research Report 2021–2024 is now available online and in print!

📗 The report provides insights into the Institute’s structure and research, including our researchers and staff, projects, and publications.

🔗 bitly.cx/l3ovd

#HistSci #HistMed #EnvHist #STS #Sinology #DigitalHumanities

Cover of the institute's Research Report 2021–2024. Below a header in a dark green, it features an aerial image of the Sundarbans mangrove forest and the rivers which cross it. Source: NASA, created by Jesse Allen, Earth Observatory. Wikimedia Commons.

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Reposted by Lutz Bornmann

Aliakbar Akbaritabar @akbaritabar.bsky.social · Apr 11

I am extremely happy to share. Just out in @pnas.org:

“Global subnational estimates of migration of scientists reveal large disparities in internal and international flows”

Open Access: doi.org/10.1073/pnas...
with Maciej J. Dańko, Xinyi Zhao, @ezagheni.bsky.social @mpidr.bsky.social #PAA2025

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Reposted by Lutz Bornmann

arXiv cs.DL Digital Libraries @csdl-bot.bsky.social · Apr 11

index (D). While prior studies emphasize minimum citation windows (mostly 3-5 years) for reliable citation impact measurements, the time-sensitive nature of D - which quantifies a paper' s capacity to eclipse prior knowledge - remains underexplored. [2/6 of https://arxiv.org/abs/2504.07828v1]

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Reposted by Lutz Bornmann

arXiv cs.DL Digital Libraries @csdl-bot.bsky.social · Apr 11

highly disruptive and consolidating works. The findings offer significant implications for scholarly evaluation and science policy, emphasizing the need for careful consideration of citation window length in research assessment (based on D). [6/6 of https://arxiv.org/abs/2504.07828v1]

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Reposted by Lutz Bornmann

arXiv cs.DL Digital Libraries @csdl-bot.bsky.social · Apr 11

classifications, while shorter windows (3 years) exhibit instability. Publications with >=30 references stabilize 1-3 years faster, and extreme cases (top/bottom 5% D values) become identifiable within 5 years - enabling early detection of 60-80% of [5/6 of https://arxiv.org/abs/2504.07828v1]

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Reposted by Lutz Bornmann

arXiv cs.DL Digital Libraries @csdl-bot.bsky.social · Apr 11

Hongkan Chen, Lutz Bornmann, Yi Bu: Dynamic disruption index across citation and cited references windows: Recommendations for thresholds in research evaluation https://arxiv.org/abs/2504.07828 https://arxiv.org/pdf/2504.07828 https://arxiv.org/html/2504.07828

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Lutz Bornmann @lutzb.bsky.social · Apr 10

dx.plos.org/10.1371/jour...

Are quality assessments in science affected by anchoring effects? – Empirical results from a survey of authors assessing previously cited papers

Many studies have investigated anchoring effects. Anchoring occurs when initial values are used by humans as starting points in assessments. We investigated the prevalence of anchoring effects in the ...

dx.plos.org

Reposted by Lutz Bornmann

Evidence & Policy @evidencepolicy.bsky.social · Apr 7

'The influence of public policy and administration expertise on #policy: an empirical study'

New from Evidence & Policy, by @rhaunschild.bsky.social, Kate Williams & @lutzb.bsky.social:

The influence of public policy and administration expertise on policy: an empirical study

Academic expertise is a key pillar of governance processes around the world. A goal of policy and public sector actors is to draw on research to improve decision making, and correspondingly, a goal…

buff.ly

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Reposted by Lutz Bornmann

LSE Impact Blog @lseimpactblog.bsky.social · Apr 4

👀 ICYMI: @lutzb.bsky.social & Christian Ganser explore the phenomenon of hyperprolific authors, who publish a research paper every five days, and what listening to their output metrics can tell us about ‘research productivity’.

#Citations #Bibliometrics #Academia

Metrics sonification – What we can learn from listening to the output of hyperprolific academic authors - Impact of Social Sciences

Bibliometric data is often communicated visually or as text, but what can we learn by listening to them via the process of metrics sonification?

blogs.lse.ac.uk

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Reposted by Lutz Bornmann

Vincent Traag @vtraag.bsky.social · Apr 2

The attacks on science in the US raise serious concerns. With other colleagues at CWTS, we discuss how our research relates to these developments, and how we intend to monitor science at risk.

Leiden Madtrics @leidenmadtrics.bsky.social · Apr 2

🚨 Science in the US faces major challenges, including attacks on diversity, equity & inclusion, and climate science. In our new blog post, CWTS’ focal areas respond and outline continuous efforts to improve how science is practiced, governed, and valued.

👉 www.leidenmadtrics.nl/articles/str...

Strengthening science through diversity

Science in the US is under attack, with banned words, funding cuts, and threats to diversity, equity & inclusion and climate science. These actions harm science. CWTS’ focal areas respond, aligned wit...

www.leidenmadtrics.nl

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Reposted by Lutz Bornmann

Kompetenznetzwerk Bibliometrie/Geschäftsstelle @bibliometrie-info.bsky.social · Apr 2

Our upcoming Open Research Seminars in May, June and July on the German Excellence Initiative, measuring disruption in science and evaluative bibliometrics in the DORA/CoARA context:

bibliometrie.info

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Reposted by Lutz Bornmann

Kompetenznetzwerk Bibliometrie/Geschäftsstelle @bibliometrie-info.bsky.social · Apr 1

Registration is open for the esss european summer school for scientometrics! esss.info

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Reposted by Lutz Bornmann

rhaunschild.bsky.social @rhaunschild.bsky.social · Mar 24

The special track on Open Research Information at @stienid2025.bsky.social is open to submissions via the regular conference submission tool.

29th Annual Conference on Science and Technology Indicators @stienid2025.bsky.social · Dec 4

And we are live!

www.stienid2025.org

Call for Special Sessions and Papers open January 2025.

Spread the news and see you there!

Home | STIENID2025 Bristol

www.stienid2025.org

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Reposted by Lutz Bornmann

LSE Impact Blog @lseimpactblog.bsky.social · Mar 28

💥 New: Metrics sonification – What we can learn from listening to the output of hyperprolific academic authors

✍️ @lutzb.bsky.social & Christian Ganser #Bibliometrics #AcademicSky #DataViz

Metrics sonification – What we can learn from listening to the output of hyperprolific academic authors - Impact of Social Sciences

Bibliometric data is often communicated visually or as text, but what can we learn by listening to them via the process of metrics sonification?

blogs.lse.ac.uk

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Reposted by Lutz Bornmann

29th Annual Conference on Science and Technology Indicators @stienid2025.bsky.social · Mar 24

Reminder: The deadline for submissions to the 29th Annual Science and Technology Indicators Conference (STI 2025) is fast approaching!🚨

🔗 Submit your work here: auth.oxfordabstracts.com?redirect=/st...

Need more time? Just reach out at [email protected] we're happy to accommodate!

Home | STIENID2025 Bristol

www.stienid2025.org

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Reposted by Lutz Bornmann

rhaunschild.bsky.social @rhaunschild.bsky.social · Mar 21

Proposal of a gold standard combining different UN SDG assignments from different data providers: doi.org/10.1007/s111... @lutzb.bsky.social Many thanks to @clarivateag.bsky.social, @elsevierconnect.bsky.social, and OSDG.ai for providing SDG assignments.

doi.org

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Reposted by Lutz Bornmann

Our World in Data @ourworldindata.org · Mar 20

What were the death tolls from pandemics in history?

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Reposted by Lutz Bornmann

Dalmeet Singh Chawla @dalmeet.bsky.social · Mar 19

Why do nearly 45,000 scholarly papers cite themselves? My latest for @retractionwatch.com: retractionwatch.com/2025/03/19/p...

@lutzb.bsky.social, @mollymking.bsky.social

Why do nearly 45,000 scholarly papers cite themselves?

While thousands of papers cite themselves, the percentage that do so is relatively low. Haunschild & Bornmann/arXiv.org While using bibliometric techniques to measure how disruptive research pa…

retractionwatch.com

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