Reusing data: bridging the distance between data consumers and producers

The development of open research data has generally been from the perspective of producers sharing data; we argue that it is vital to include the consumer perspective. In this blog post, we report insights gained from a workshop held in November 2024 exploring data reuse from different perspectives.

Kathleen Gregory, Femmy Admiraal, Pascal Flohr, Andrew S. Hoffman, Sarah Lippincott and Thed van Leeuwen • February 10, 2025

Independent researchers: traces in bibliographic data

This blog post presents preliminary findings from an exploratory study on independent researchers, using OpenAlex data to trace their research interests and career paths. We also discuss our experience working with open and federated data solutions during the study.

Camilla Lindelöw and Eline Vandewalle • January 13, 2025

Towards the democratisation of open research information for scientometrics and science policy: the Campinas experience

The Barcelona Declaration represented a major step towards the adoption of open data for scientometrics and science policy. This blogpost discusses the importance of also moving towards democratising the access and use of these open resources, by sharing our experience from Campinas in Brazil.

Alysson Mazoni and Rodrigo Costas • June 06, 2024

An update on the Scholars on Twitter dataset

In 2022, we published a dataset of Scholars on Twitter. This blog post introduces an update to this dataset and discusses some of the challenges with our data providers: Twitter, Crossref, and OpenAlex. These challenges made the original dataset and process obsolete and this update necessary.

Philippe Mongeon, Timothy D. Bowman, Rodrigo Costas and Wenceslao Arroyo-Machado • April 24, 2024

Walking the talk: a peek into Open Science practices at CWTS

At CWTS, Open Science is a prominent topic, but what do we actually do about it? Ana Parrón Cabañero, PhD candidate at CWTS, interviewed colleagues and explored the integration of Open Science into mission and practice at the institute. Here, she reflects on her findings and links them to theory.

Ana Parrón Cabañero • April 08, 2024

Introducing the Leiden Ranking Open Edition

This post introduces the Open Edition of the CWTS Leiden Ranking, published today by CWTS in collaboration with the Curtin Open Knowledge Initiative, Sesame Open Science, and OurResearch. The Leiden Ranking Open Edition is the first fully transparent university ranking.

Ludo Waltman, Nees Jan van Eck, Martijn Visser, Mark Neijssel, Lucy Montgomery, Cameron Neylon, Bianca Kramer, Kyle Demes and Jason Priem • January 30, 2024

Opening up the CWTS Leiden Ranking: Toward a decentralized and open model for data curation

Today, CWTS released the Open Edition of the Leiden Ranking. This blog post discusses the data curation approach taken in this fully transparent edition of the Leiden Ranking.

Nees Jan van Eck, Martijn Visser and Ludo Waltman • January 30, 2024

An open approach for classifying research publications

In this post Nees Jan van Eck and Ludo Waltman introduce an open approach for classifying research publications, contributing to a broader development toward open approaches to bibliometrics.

Nees Jan van Eck and Ludo Waltman • January 24, 2024

Open Science Knowledge Platform: A Journey to a Dynamic Resource

In 2022, CWTS held a series of open science seminars together with the Research Councils of The Netherlands (NWO) and Norway (RCN). Now, all resources from the seminars are available on a new Open Science Knowledge Platform. This blogpost reflects on building this platform and next steps to come.

André Brasil • March 16, 2023

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