Kati Lassila-Perini's Avatar

Kati Lassila-Perini

@katilp

Particle physicist - data preservation, reusability, open data, education @cmsexperiment.bsky.social Helsinki Institute of Physics at CERN - Runner, XC-skier, hiker: most comfortable uphill.

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24.11.2024
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Latest posts by Kati Lassila-Perini @katilp

Amplifiers of Epistemic Posture Essays and writing on AI

I'm a cognitive scientist with an interest in epistemic vigilance, and this essay that's been going around gave me pause.

I don't think it's straightforward to apply the concept of epistemic vigilance to interactions with LLMs, as this essay does.

๐Ÿงต/

sbgeoaiphd.github.io/rotating_the...

26.02.2026 13:18 ๐Ÿ‘ 290 ๐Ÿ” 121 ๐Ÿ’ฌ 8 ๐Ÿ“Œ 33

Openness throughout the research life cycle. Because your paper is not your research, it's how you tell people about your research.

20.02.2026 12:02 ๐Ÿ‘ 12 ๐Ÿ” 5 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Richard McElreath: It must not be overlooked that junior researchers DO NOT TRUST US. We, the directors, are a big part of the problem. We made this system, we remake it every year, and we benefit from it. What can we do to credibly signal our commitment to reform a corrupt research culture? My conversations with junior scientists in the society has taught me that directors are too often either indifferent or hostile to science reform. We cannot hope to convince our prize winning colleagues. Their egos are immune. But we can replace retirements with researchers who care more about integrity than their own prestige. This is important both for earning the trust of the junior researchers who really do the research in the MPG and for attracting excellent future directors and starting to earn the trust of the public. So I suggest two strong signals to our junior researchers (and the public): (1) we will reform recruitment and promotion at all levels to eliminate proxies like citation counts and journal brands in favor of reliability and sustainability; (2) we will make open science skills a core part of scientific training, through the graduate schools at a minimum, as conditions for the central funding. The most ambitious thing we could do, as hinted at in item 5 above, is to meaningfully invest in metascientific research. As the largest basic research organization in the world, the MPG is uniquely suited to studying research and its products from a broad perspective that includes the humanities, the sciences, and policy. Governments are already involved in science reform. Someone should study it in an organized and sustained way.

Richard McElreath: It must not be overlooked that junior researchers DO NOT TRUST US. We, the directors, are a big part of the problem. We made this system, we remake it every year, and we benefit from it. What can we do to credibly signal our commitment to reform a corrupt research culture? My conversations with junior scientists in the society has taught me that directors are too often either indifferent or hostile to science reform. We cannot hope to convince our prize winning colleagues. Their egos are immune. But we can replace retirements with researchers who care more about integrity than their own prestige. This is important both for earning the trust of the junior researchers who really do the research in the MPG and for attracting excellent future directors and starting to earn the trust of the public. So I suggest two strong signals to our junior researchers (and the public): (1) we will reform recruitment and promotion at all levels to eliminate proxies like citation counts and journal brands in favor of reliability and sustainability; (2) we will make open science skills a core part of scientific training, through the graduate schools at a minimum, as conditions for the central funding. The most ambitious thing we could do, as hinted at in item 5 above, is to meaningfully invest in metascientific research. As the largest basic research organization in the world, the MPG is uniquely suited to studying research and its products from a broad perspective that includes the humanities, the sciences, and policy. Governments are already involved in science reform. Someone should study it in an organized and sustained way.

The Max Planck Society has begun an exploratory round table for open science. We are drafting some recommendations to leadership. Still a long way to go! But here are my notes on the most recent draft, just so you all know how I am trying to steer things.

17.12.2025 11:33 ๐Ÿ‘ 218 ๐Ÿ” 48 ๐Ÿ’ฌ 5 ๐Ÿ“Œ 6
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#SciX is created by the #ADS team & operates out of the Smithsonian Astrophysical Observatory under a NASA Cooperative Agreement. Created and developed by scientists, for scientists, SciX builds on decades of open research infrastructure and collaboration: https://bit.ly/CfASciXNews

29.09.2025 20:04 ๐Ÿ‘ 18 ๐Ÿ” 12 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 3
Best practices

For #openscience, the key is data โ™ป๏ธ, and everyone has a role!

Select yours & check what you can do in: icfa-data-best-practices.app.cern.ch

Also available on arXiv (arxiv.org/abs/2508.18892) but best accessed and read though the web appโœจ

04.09.2025 12:28 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

ICFA Data Lifecycle Panelโ€™s best practice recommendations for data preservation and open science in high-energy physics are out๐ŸŽ‰

Thanks to contributors, the hands-on experts in our field๐Ÿ™

See the statement here: icfa.hep.net/wp-content/u...

04.09.2025 12:27 ๐Ÿ‘ 1 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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AI Carpentry? Helping learners make better choices with genAI. In two recent community discussion sessions, we explored what mental model of machine learning/deep learning we could teach to learners already familiar with the basics of programming, to help them sa...

My latest post on @carpentries.carpentries.org blog is a call to action for the community to engage in curriculum development for workshops about genAI. How can we help our target audience make more informed choices about when and how to use it?

carpentries.org/blog/2025/08...

05.08.2025 09:24 ๐Ÿ‘ 10 ๐Ÿ” 12 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1

Remove some unnecessary stuff from the runner as the first step of the workflow. Dotnet, mysql, haskell, android...

02.05.2025 06:07 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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CodeRefinery workshop March 25-27 and April 1-3, 2025 Free workshop on git, testing, documentation, and more in a workshop - for researchers and scientists.

Collaborative Git: Teamwork Without the Chaos

Working on code with others can get messy fast. ๐Ÿ˜ตโ€๐Ÿ’ซ

Our #CollaborativeGit session teaches you how to work with teammates, contribute to projects, and never fear merge conflicts again. ๐Ÿš€

๐Ÿ“… Join the March workshop: coderefinery.github.io/2025-03-25-w...

06.03.2025 11:22 ๐Ÿ‘ 4 ๐Ÿ” 5 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Brilliant! This should be made mandatory not only for every college freshman but for every educator, student, scientist, journalist, politician, decision maker, citizen... Preferably once per week, just in case we forget.

08.02.2025 20:07 ๐Ÿ‘ 3 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

This is a big deal! 2i2c is supporting mybinder.org traffic with a BinderHub that is almost 5x cheaper than previous deployments. I think it is a great sign for mybinder.org's sustainability.

2i2c.org/blog/2025/bi...

Here's a brief explainer (1/x)

05.02.2025 15:15 ๐Ÿ‘ 14 ๐Ÿ” 2 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 0
list of banned keywords

list of banned keywords

๐ŸšจBREAKING. From a program officer at the National Science Foundation, a list of keywords that can cause a grant to be pulled. I will be sharing screenshots of these keywords along with a decision tree. Please share widely. This is a crisis for academic freedom & science.

04.02.2025 01:26 ๐Ÿ‘ 27846 ๐Ÿ” 15745 ๐Ÿ’ฌ 1272 ๐Ÿ“Œ 3656
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Lukijan mielipide | Meitรค tummaihoisia kiusataan jatkuvasti Pysรคhtyykรถ kukaan ajattelemaan sitรค, miten syrjiminen oikeasti vaikuttaa meihin tummaihoisiin?

"Pahin kokemukseni rasismista oli silloin, kun olin 11-vuotias. Olin pyรถrรคilemรคssรค keskustassa ja olin juuri aikomassa ylittรครค suojatietรค, kun eteeni kรคveli nainen. Tรคmรค nainen alkoi huutaa minulle ja haukkua minua n-sanalla. Sen jรคlkeen hรคn sylki kasvoilleni."

- kahdeksasluokkalainen suomalainen

21.12.2024 17:07 ๐Ÿ‘ 231 ๐Ÿ” 34 ๐Ÿ’ฌ 5 ๐Ÿ“Œ 1
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Open-source and FAIR Research Software for Proteomics Scientific discovery relies on innovative software as much as experimental methods, especially in proteomics, where computational tools are essential for mass spectrometer setup, data analysis, and in...

Recently, We saw a discussion on the role of open-source in proteomics. Here, experienced developers & researchers maintaining OS tools for years shared this comment to guide newcomers in the field about OS and its role in the field. ๐Ÿ’ป #Proteomics #OpenSource chemrxiv.org/engage/chemr...

09.12.2024 13:03 ๐Ÿ‘ 42 ๐Ÿ” 23 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 4
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Haluatko ryhtyรค kotona hiukkasfyysikoksi? CERNin tutkimusdataa v 2010-2016 ladattavissa netistรค omia tutkimuksia varten. Siitรค vain etsimรครคn uusia alkeishiukkasia. opendata.cern.ch #cern

10.12.2024 15:22 ๐Ÿ‘ 22 ๐Ÿ” 3 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 0

@teemuroos.bsky.social @hannu-toivonen.bsky.social Saanko kysyรค? Onko termistรค workflow kรคytรถssรค suomenkielistรค vastinetta? Esim. yhteydessรค computational workflow tai workflow language.

04.12.2024 11:06 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

๐ŸŽ“: In addition, in Finland, we help teachers bring authentic open data to schools - not only particle physics but all domains according to teachers' needs (not ours!). #digitalskills #dataliteracy

Read about it e.g. in iopscience.iop.org/article/10.1... Credits go to brilliant Peitsa Veteli!

02.12.2024 18:53 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

โ™ป๏ธ: The #reusability of open data at the research level remains my main interest: #knowledgepreservation through #analysispreservation is needed!
Currently leading the "Data Lifecycle panel" set up by ICFA (International Committee for Future Accelerators).
More about it later!

02.12.2024 18:53 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

๐Ÿค: I have now passed the CMS OD leadership to @tpmccauley.bsky.social & Julie Hogan: they are doing great๐Ÿคฉ
Happy that I forced myself to ๐Ÿ“ all what is involved in the data release preparations - a humbling experience as it exposes all my flaws๐Ÿซฃ. #FAIR is for open data but also for how to get there๐Ÿคทโ€โ™€๏ธ

02.12.2024 18:53 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
CERN70: Continuing CERNโ€™s legacy of open science Rolf Heuer was CERN Director-General during an era when multiple open science initiatives were launched by the Organization

And also ๐Ÿ˜Š to see how the #opendata experience gained from what we did convinced those who expected trouble
home.cern/news/series/...
and we could set up new standards in our field๐Ÿ†

02.12.2024 18:53 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
CMS celebrates a decade of Open Data | CMS Experiment

This is what we've done with a small and dedicated team (๐Ÿฅฐ) during past ten years ๐Ÿฅณ
cms.cern/news/cms-cel...
Not going to lie, I'm pretty proud of this๐Ÿ’ช

02.12.2024 18:53 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

I'm new here so a brief introduction:
PhD, experimental particle physicist @cmsexperiment.bsky.social
based at CERN, employed by HIP - Helsinki Institute of Physics (๐Ÿ‡ซ๐Ÿ‡ฎ for those who see flags)
Analysis background in Higgs physics, but long time active in #datapreservation, #opendata, #openscience

02.12.2024 18:53 ๐Ÿ‘ 4 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0