1.9 million author entries. 2.1 million affiliation entries. 1.75 million matched to ROR IDs. That's what our fine-tuned open-weight model extracted from 430,000 arXiv preprints. Join us on 21 Jan to discuss the results. 📅 Register: datacite.zoom.us/meeting/regi...

📊 Today, the CWTS Leiden Ranking 2025 has been released. The new Open Edition marks a next step towards more open and more inclusive research analytics for universities. Our new blog post highlights the most significant developments. 👇 Read it now on Leiden Madtrics

📊 The CWTS Leiden Ranking 2025 is online! 🎉 This time, we have released not one, but two editions: the Traditional Edition and the Open Edition. www.leidenranking.com

There is considerable discussion about the (lack of) openness of metadata of journal articles, but how do preprint servers perform in terms of openly available metadata? @neesjanvaneck.bsky.social and I report our findings in a new @leidenmadtrics.bsky.social blog post doi.org/10.59350/te7....

@crossref.bsky.social is a crucial source of open bibliographic metadata for articles published in scientific journals, but how complete is its metadata on preprints? In our latest blog post, @neesjanvaneck.bsky.social and @ludowaltman.bsky.social investigate 👇 Read it now on Leiden Madtrics

🗓️ Register at: datacite.zoom.us/meeting/regi...

Can you help assess how our project advances the COMET model? We've connected arXiv preprints to published articles with 95%+ precision. Join our community evaluation of this demonstration project. 🗓️ 3 October - Community Project Assessment Register: datacite.zoom.us/meeting/regi...

New on the blog, Organizer @neesjanvaneck.bsky.social Nees Jan van Eck from @cwts.nl explains why CWTS is passionate about enriching #metadata and participating in COMET. A must-read! 👉 www.cometadata.org/blog/cwts

If you missed COMET's Community Meeting, you can watch the recording on Zenodo: zenodo.org/records/1592... Organizers Nees Jan van Eck @neesjanvaneck.bsky.social, Adam Buttrick, and Dione Mentis give an update on our progress, introduce the COMET Model, and demonstrate pilot projects.

🔍 Registration is now 𝗢𝗣𝗘𝗡 for the 4th edition of the Scientometrics Using Open Data (𝗼𝗻𝗹𝗶𝗻𝗲) course! Co-hosted by @cwts.nl & Curtin Open Knowledge Initiative (COKI) 📅 4 Nov – 7 Nov 2025 🕑 14.00 to 18.00 CET 🔗 Learn more and sign up now: 👉🏼 www.universiteitleiden.nl/en/courses/s...

New update of statistics on availability of open publication metadata in Crossref. Openness of publication metadata keeps increasing, but there have been no major changes compared to last year. Paper: doi.org/10.31222/osf... Data: doi.org/10.5281/zeno... Figures: tinyurl.com/3zk5nvvf @cwts.nl