Over-time measurement of triadic closure in coauthorship networks
| Autor: | Kim, Jinseok, Diesner, Jana |
|---|---|
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Social Network Analysis and Mining, 7(1), 1-12 (2017) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1007/s13278-017-0428-3 |
| Popis: | Applying the concept of triadic closure to coauthorship networks means that scholars are likely to publish a joint paper if they have previously coauthored with the same people. Prior research has identified moderate to high (20% to 40%) closure rates; suggesting that this mechanism is a reasonable explanation for tie formation between future coauthors. We show how calculating triadic closure based on prior operationalizations of closure, namely Newman's measure for one-mode networks (NCC) and Opsahl's measure for two-mode networks (OCC), may lead to higher amounts of closure as compared to measuring closure over time via a metric that we introduce and test in this paper. Based on empirical experiments using four large-scale, longitudinal datasets, we find a lower bound of about 1~3% closure rates and an upper bound of about 4~7%. These results motivate research on new explanatory factors for the formation of coauthorship links. Comment: 19 pages |
| Databáze: | arXiv |
| Externí odkaz: |
|