Characterizing in-text citations in scientific articles: A large-scale analysis
作者：
Highlights：
• In-text citations from over five million full text articles from the PubMed Central Open Access subset and Elsevier journals are analyzed.
• There are large field-level differences that are reflected in position within the text, citation interval, and citation counts of references.
• In all fields the numbers of sentences, references, and in-text mentions per article have increased over time.
• There are field-level and temporal differences in the numbers of in-text mentions per reference.
• References mentioned only once tend to be much more highly cited than those mentioned multiple times.
摘要
•In-text citations from over five million full text articles from the PubMed Central Open Access subset and Elsevier journals are analyzed.•There are large field-level differences that are reflected in position within the text, citation interval, and citation counts of references.•In all fields the numbers of sentences, references, and in-text mentions per article have increased over time.•There are field-level and temporal differences in the numbers of in-text mentions per reference.•References mentioned only once tend to be much more highly cited than those mentioned multiple times.
论文关键词：In-text citations,Citation position analysis,Field-level analysis,Reference age,Citation counts
论文评审过程：Received 9 October 2017, Revised 21 November 2017, Accepted 21 November 2017, Available online 1 December 2017, Version of Record 1 December 2017.
论文官网地址：https://doi.org/10.1016/j.joi.2017.11.005
