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Lutz Bornmann

@lutzb.bsky.social

Sociologist of science

86 Followers  |  110 Following  |  12 Posts  |  Joined: 22.11.2024  |  2.2849

Latest posts by lutzb.bsky.social on Bluesky

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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/2025/07/29/g...

29.07.2025 12:40 β€” πŸ‘ 0    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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/10.48550/arX...

05.06.2025 09:09 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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How similar are field-normalized citation impact scores obtained from OpenAlex and three popular commercial databases? An empirical comparison based on large German universities - Scientometrics 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...

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...

30.05.2025 05:46 β€” πŸ‘ 0    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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Are groundbreaking science discoveries becoming harder to find? Researchers are arguing over whether β€˜disruptive’ or β€˜novel’ science is waning – and how to remedy the problem.

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

22.05.2025 07:10 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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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...

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

18.04.2025 13:07 β€” πŸ‘ 3    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

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

20.04.2025 06:25 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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.

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.

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

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

πŸ”— bitly.cx/l3ovd

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

16.04.2025 10:37 β€” πŸ‘ 18    πŸ” 7    πŸ’¬ 0    πŸ“Œ 0
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I am extremely happy to share. Just out in @pnas.org:

β€œGlobal subnational estimates of migration of scientists reveal large disparities in internal and international flows”

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

11.04.2025 18:31 β€” πŸ‘ 24    πŸ” 5    πŸ’¬ 1    πŸ“Œ 1

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]

11.04.2025 05:55 β€” πŸ‘ 0    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

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]

11.04.2025 05:56 β€” πŸ‘ 0    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

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]

11.04.2025 05:55 β€” πŸ‘ 0    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

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

11.04.2025 05:55 β€” πŸ‘ 0    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
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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/10.1371/jour...

10.04.2025 18:44 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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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…

'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:

07.04.2025 11:42 β€” πŸ‘ 3    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
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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?

πŸ‘€ 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 β€˜research productivity’.

#Citations #Bibliometrics #Academia

04.04.2025 15:02 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

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.

02.04.2025 14:37 β€” πŸ‘ 0    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

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:

02.04.2025 12:43 β€” πŸ‘ 2    πŸ” 6    πŸ’¬ 0    πŸ“Œ 1

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

01.04.2025 12:09 β€” πŸ‘ 1    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

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

24.03.2025 11:09 β€” πŸ‘ 1    πŸ” 3    πŸ’¬ 1    πŸ“Œ 0
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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?

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

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

28.03.2025 13:00 β€” πŸ‘ 4    πŸ” 6    πŸ’¬ 0    πŸ“Œ 3
Home | STIENID2025 Bristol

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

πŸ”— Submit your work here: auth.oxfordabstracts.com?redirect=/st...

Need more time? Just reach out at sti-enid2025@bristol.ac.uk we're happy to accommodate!

24.03.2025 11:20 β€” πŸ‘ 0    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

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.

21.03.2025 14:10 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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What were the death tolls from pandemics in history?

20.03.2025 10:54 β€” πŸ‘ 99    πŸ” 33    πŸ’¬ 1    πŸ“Œ 4
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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…

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

19.03.2025 18:18 β€” πŸ‘ 7    πŸ” 10    πŸ’¬ 0    πŸ“Œ 1
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Catchy, clear, concise: Three-part phrases boost research paper citations Memorable β€˜tripartite’ phrases in titles make studies more likely to be read and cited.

Catchy, clear, concise: three-part phrases in research-paper titles garner more citations.

Nice to know that the 'rule of three' also works for science articles. Could get irritating if over-used?

by @dalmeet.bsky.social | @nature.com

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

18.03.2025 12:55 β€” πŸ‘ 5    πŸ” 4    πŸ’¬ 0    πŸ“Œ 3
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Metrics sonification as a new way to convey bibliometric data When it comes to making sense of data, visualizations rule. But what about translating data into sound? This blog post explores the origins of β€˜data sonification’ and its many applications in science ...

🎢 When it comes to making sense of data, visualizations rule. But what about translating data into sound? In today's blog post, @lutzb.bsky.social explores 'data sonification' and its many applications and shows: even bibliometric data can be turned into sound.

www.leidenmadtrics.nl/articles/met...

18.03.2025 09:49 β€” πŸ‘ 4    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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Excellence Maps v2 The web application visualizes the impact of papers published in several subject areas on researchers and other status groups.

We published an update of our excellence mapping at www.excellencemapping.net

18.03.2025 07:58 β€” πŸ‘ 3    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
Welcome to Bergen in 2025! Welcome to the 30th Nordic Workshop on Bibliometrics and Research Policy (NWB 2025). Nordic Institute for Studies of Innovation, Research and Education are hosts together with the University Library o...

The 30th Nordic Workshop on Bibliometrics and Research Policy takes place in Bergen, Norway October 29-31 this year. The Call for Abstracts is now out, and submissions open March 17th. Presentations and posters alike are welcome. Hope to see you there?

13.03.2025 11:25 β€” πŸ‘ 7    πŸ” 11    πŸ’¬ 0    πŸ“Œ 2

How to use assignments of United Nations sustainable development goals (SDGs) to scientific papers in research evaluation? The proposal of a gold standard combining assignments from different data providers

link.springer.com/co...

14.03.2025 07:56 β€” πŸ‘ 4    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0
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MetaROR (Metaresearch Open Review) and the 'publish, review, curate' model MetaROR (MetaResearch Open Review) and the 'publish, review, curate' model of scholarly communication

πŸ“…

Want to learn more about MetaROR and its publish, review, curate model of scholarly communication?

Join @stephenpinfield.bsky.social and AndrΓ© Brasil for this webinar on 2 April at 10:00 BST!

13.03.2025 16:03 β€” πŸ‘ 3    πŸ” 5    πŸ’¬ 0    πŸ“Œ 0

@lutzb is following 20 prominent accounts