We are proud that OpenAlex is free! All of the data is open, and most of our users will find all they need in our free services. For those who want a higher level of service (and to help support our mission!) we're also proud to offer OpenAlex Premium! openalex.org/pricing

Today, CWTS | Leiden University launched the 2023 edition of the Leiden Ranking! Read our new blog post to be updated on the latest developments around the ranking leidenmadtrics.nl/articles/the-c…

Today, we released the 2023 edition of the Leiden Ranking. As in previous years, the Leiden Ranking offers important insights into the scientific performance of universities worldwide. Leiden University leidenranking.com

Our R&D group builds prototypes, experimental solutions, and data-mining applications that can help us to understand our member base in the service of future evolution of the organization. We've got some cool things in the works. Read Martin Paul Eve's blog: buff.ly/3XmDun9

High level visit NWO Nieuws today from Ginny has moved to Bluesky, EDward Pentz and Dr. Madhura Amdekar. At #BibliothecaThysiana we were shown @crossrefs 16thC precursor: Gesner’s Bibliotheca universalis (1583) w/ Ludo Waltman Nees Jan van Eck Jeroen Bosman aka @[email protected]

The second edition of the Scientometrics Using Open Data course co-organised by CWTS | Leiden University and COKI Project will be held online on 25-28 March 2024 (time amenable to the US timezone)! The registration is open and more info can be found on our website cwts.nl/education/cwts…!

🚨 Vacancy alert 🚨 We have two exciting new job openings in our data science team at CWTS! 💼

Join us *today* at 12pm ET for a free webinar on using VOSViewer to quickly and easily visualize OpenAlex data, led by special guest Nees Jan van Eck! Learn more and register: openalex.org/webinars

Thanks to everyone who attended last Thursday's webinar on visualizing OpenAlex data with VOSViewer! Video and slides are up: openalex.org/webinars

Amazing - I exported my Zotero library from 2019-present and got the references of my references. Broadly, Yellow: COVID-19, Green: Other Epidemiology, Purple: Network Science, Red: Geography, Orange: Remote Sensing, Blue: Computer Science

The Information & Openness focal area at CWTS | Leiden University studies and promotes #openness of scientometric data, and of research information more generally. Want to know more about the plans for the coming five years? Check our new blog post 👇leidenmadtrics.nl/articles/towar…

Our CWTS | Leiden University colleagues Nees Jan van Eck and Ludo Waltman have developed a new open approach for the classification of research publications. Read our latest blog post to find out the details leidenmadtrics.nl/articles/an-op…

New topic classification in OpenAlex using Leiden algorithm. Interestingly using GPT3.5 to create short and long labels for the lowest level of classifications. This classification will also be used in the upcoming Leiden ranking based on open data (Jan 30)

🎉Our new blog post introduces the first fully transparent university ranking: the Leiden Ranking Open Edition launched today by @CWTS in collaboration with @COKI , Bianca Kramer @[email protected] from Sesame Open Science and Our Research 👇 leidenmadtrics.nl/articles/intro…

Our authors Nees Jan van Eck, Martijn Visser and Ludo Waltman discuss in this blog post the opening up of the CWTS Leiden Ranking published today ✅ and introduce the decentralised and open model approach used for data curation 👇 leidenmadtrics.nl/articles/openi…

Announcing OpenAlex Topics— a new system for categorizing hundreds of millions of research publications! help.openalex.org/how-it-works/t…

📣 We are happy to present the 6th edition of the CWTS Scientometrics Summer School! 📌 When: 26 August 2024 – 06 September 2024 📌 Hybrid: Online & in-person at CWTS in Leiden, NL #CS3 #Scientometrics cwts.nl/education/cwts…

Another paper from a collaboration with my alma mater, this time on the history of applications of laser desorption ionization in mass spectrometry: doi.org/10.1021/jasms.…