Centre for Science and Technology Studies Centre for Science and Technology Studies 2333AL Leiden Zuid Holland 31715273909

Centre for Science and Technology Studies

The Centre for Science and Technology Studies (CWTS) studies scientific research and its connections to technology, innovation, and society. Our research, bibliometric and scientometric tools, and evaluation expertise provide a solid basis for supporting research assessment and strategic decision making and for developing science policy.





  • Is it a scientific breakthrough?

    Only a small minority of all scientific publications contain genuine scientific breakthroughs. It takes, in general, a considerable amount of time before a scientific discovery is recognized as a breakthrough. We show that combining decision heuristics with algorithms that analyse the response of the scientific community to a research publication enables the detection of breakthroughs at an early stage.

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  • The evaluative inquiry: a new approach to academic evaluation

    The evaluative inquiry is a promising new approach to research evaluation. Here are four moves to give shape to its methodology, focus, analysis and ambitions.

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  • Using the Leiden algorithm to find well-connected clusters in networks

    An exciting development in the field of quantitative science studies is the use of algorithmic clustering approaches to construct article-level classifications based on citation networks. Until recently, most classifications were based on categorizing journals rather than individual articles. This is understandable given the substantial challenges of classifying millions of articles. At CWTS, we now routinely work with article-level classifications. We have dedicated quite some time developing clustering algorithms for creating these classifications. These algorithms have an impact beyond our own research field and are of interest to many network scientists.

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