CWTS Leiden Ranking is a global university ranking system based on bibliometric indicatorsLeiden UniversityThe Science and Technology Research Center (CWTS) released its data fromThomson ReutersWeb of Science.[9]The first version of CWTS Leiden University ranking was released in 2007[1]。
The scoring indicators of CWTS Leiden University ranking are in columns, and the interval range can be customized. There is no unified weighted average for each scoring indicator[8]The crown index in each scoring index is index 4 (top 10% of PP)[2]，It is the only index used by world-class universities in university ranking[3-5][7]。Strictly speaking, CWTS Leiden University ranking is only a ranking of academic paper performance, not a comprehensive evaluation of the university.[9]
Massachusetts Institute of TechnologyIt pointed out that "CWTS Leiden University ranking provides important insights into the scientific performance of nearly 1000 major universities in the world"[7]。
Scoring indicators are in columns, and the range can be defined
CWTS Leiden University Ranking is a world university ranking compiled by the Center for Science and Technology Research (CWTS) of Leiden University. Strictly speaking, it is just a ranking list of academic paper performance, not involving a comprehensive evaluation of universities. Its ranking method is based on Web of Science paper citation data, according to the top 10% or top 1% indicators cited by papers in various fields.[9]
Rank by
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Citation influence
MCS – Average Citation Score.Average number of citations of university publications.
MNCS – Average normalized score.The average number of citations of a university publication is standardized according to the field differences and the year of publication.For example, a MNCS value of 2 means that a university's publications are cited twice as often as the world average.
PP (Top 10%) – The proportion of top 10% publications.Compared with other publications in the same field and in the same year, the proportion of university publications belonging to the top 10% most frequently cited accounted for.
Scientific cooperation
PP (collab) – the proportion of inter agency collaborative publications.Percentage of university publications co authored with one or more other organizations.
PP (int lab) – proportion of international cooperation publications.The proportion of university publications co authored by two or more countries.
PP (UI collab) – the proportion of cooperative publications with the industry.Percentage of university publications co authored with one or more industry partners.
PP (<100 km) – proportion of short distance cooperative publications.The proportion of publications whose geographical collaboration distance is less than 100 kilometers in a university.
PP (>1000 km) – the proportion of remote cooperation publications.The proportion of publications with geographical collaboration distance of more than 1000 kilometers in a university.[6]
