Document type assignment accuracy in the journal citation index data of Web of Science
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This article reports the results of a study of the correctness of document type assignments in the commercial citation index database Web of Science (SCIE, SSCI, AHCI collections). The document type assignments for publication records are compared to those given on the official journal websites or in the publication full-texts for a random sample of 791 Web of Science records across the four document type categories articles, letters, reviews and others, according to the definitions of WoS. The proportion of incorrect assignments across document types and its influence on document specific normalized citations scores are analysed. It is found that document type data is correct in 94% of records. Further analyses show that within records of one document type as assigned in the data source, the records assigned to the type correctly and incorrectly have different average page counts and reference counts.
KeywordsCitation normalization Document type Data accuracy Bibliometric data Citation impact Web of Science Scopus Data quality
This study was supported by the German Federal Ministry of Education and Research (BMBF) Grant 01PQ13001, project “Kompetenzzentrum Bibliometrie”. I want to thank Anastasiia Tcypina for help with data collection and Nees Jan van Eck for discussion of the manuscript.
- Baeza-Yates, R., & Ribeiro-Neto, B. (1999). Modern information retrieval. New York: ACM Press.Google Scholar
- Chaiworapongsa, T., Romero, R., Kim, Y. M., Kim, G. J., Kim, M. R., Espinoza, J., et al. (2008). The maternal plasma soluble vascular endothelial growth factor receptor-1 concentration is elevated in SGA and the magnitude of the increase relates to Doppler abnormalities in the maternal and fetal circulation. The Journal of Maternal-Fetal & Neonatal Medicine, 21(1), 25–40.CrossRefGoogle Scholar
- Korn, E. L., & Graubard, B. I. (1998). Confidence intervals for proportions with small expected number of positive counts estimated from survey data. Survey Methodology, 24(2), 193–201.Google Scholar
- Sirtes, D. (2012). How (dis-) similar are different citation normalizations and the fractional citation indicator? (And how it can be improved). In É. Archambault, Y. Gingras, & V. Larivière (Eds.), Proceedings of 17th international conference on science and technology indicators (STI) (pp. 894–896). Montréal: Science-Metrix and OST.Google Scholar