Ludo Waltman

Ludo Waltman

Professor of Quantitative Science Studies at CWTS

    Ludo Waltman is a professor of Quantitative Science Studies and deputy director at the Centre for Science and Technology Studies (CWTS) at Leiden University. He is also affiliated with the Research on Research Institute (RoRI). His work focuses on infrastructures, algorithms, and tools to support research assessment, science policy, and scholarly communication. Ludo is a member of the board of ASAPbio, chair of the advisory board of OpenCitations, and coordinator of the Initiative for Open Abstracts (I4OA). Together with his colleague Nees Jan van Eck, Ludo has developed the well-known VOSviewer software for bibliometric visualization. Ludo is the coordinator of the CWTS Leiden Ranking, a bibliometric ranking of major universities worldwide. In addition, Ludo served as the Founding Editor-in-Chief of the journal Quantitative Science Studies.

    All Sessions by Ludo Waltman

    Chapter XLIII: Sorbonne 12-12-2023
    14:35 - 14:55

    Making the CWTS Leiden ranking more transparent

    The CWTS Leiden Ranking aims to provide a responsible alternative to major university rankings such as Shanghai (ARWU), THE, and QS. However, due to the proprietary nature of the data used in the Leiden Ranking, the transparency of the ranking has always been limited. In this talk I will discuss the development of the Open Edition of the Leiden Ranking, a fully transparent edition of the ranking based on data from OpenAlex. I will also reflect on the broader movement toward more responsible ways of dealing with university rankings.

    14:55 - 15:15

    Discussion Panel 1

    Chapter XLIII: Sorbonne 12-12-2023
    14:35 - 14:55

    Making the CWTS Leiden ranking more transparent

    The CWTS Leiden Ranking aims to provide a responsible alternative to major university rankings such as Shanghai (ARWU), THE, and QS. However, due to the proprietary nature of the data used in the Leiden Ranking, the transparency of the ranking has always been limited. In this talk I will discuss the development of the Open Edition of the Leiden Ranking, a fully transparent edition of the ranking based on data from OpenAlex. I will also reflect on the broader movement toward more responsible ways of dealing with university rankings.

    14:55 - 15:15

    Discussion Panel 1

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