Field-normalized citation impact indicators using algorithmically constructed classification systems of science

• Published in: Journal of informetrics Vol. 9; no. 1; pp. 102 - 117
• Main Authors: Ruiz-Castillo, Javier, Waltman, Ludo
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.01.2015; Elsevier Science Ltd
• Subjects: Algorithms; Citation analysis; Citation impact indicators; Classification schemes; Classification systems; Clustering methodology; Field normalization; Impact factors; Informetrics; University rankings; Classification systems; Clustering methodology; Field normalization; University rankings; Citation impact indicators

•We study algorithmically constructed classification systems for field normalization purposes.•It is argued that working with a few thousand fields may be an optimal choice.•University citation indicators are relatively insensitive to the classification system choice.•For individual universities, th...