Authors: Franceschini F, Maisano D & Mastrogiacomo L
Comment: This is an article studying various errors in Scopus and Web of Science (WoS) databases. These include citation indexing errors, missing links, missing DOIs, incorrect author names, etc. Manual check was done on a sample of errors. After classification of errors, it found that the distributions of errors were very different between Scopus and WoS.
Abstract: In the last decade, a growing number of studies focused on the qualitative/quantitative analysis of bibliometric-database errors. Most of these studies relied on the identification and (manual) examination of relatively limited samples of errors.
Using an automated procedure, we collected a large corpus of more than 10,000 errors in the two multidisciplinary databases Scopus and Web of Science (WoS), mainly including articles in the Engineering-Manufacturing field. Based on the manual examination of a portion (of about 10%) of these errors, this paper provides a preliminary analysis and classification, identifying similarities and differences between Scopus and WoS.
The analysis reveals interesting results, such as: (i) although Scopus seems more accurate than WoS, it tends to forget to index more papers, causing the loss of the relevant citations given/obtained, (ii) both databases have relatively serious problems in managing the so-called Online-First articles, and (iii) lack of correlation between databases, regarding the distribution of the errors in several error categories.
The description is supported by practical examples concerning a variety of errors in the Scopus and WoS databases.