|Colombo, Gualtiero B., Burnap, Peter, Hodorog, Andrei and Scourfield, Jonathan Bryn 2015. Analysing the connectivity and communication of suicidal users on Twitter. Computer Communications 73 (B) , pp. 291-300. 10.1016/j.comcom.2015.07.018|
- Published Version
Available under License Creative Commons Attribution Non-commercial No Derivatives.
Download (2MB) | Preview
In this paper we aim to understand the connectivity and communication characteristics of Twitter users who post content subsequently classified by human annotators as containing possible suicidal intent or thinking, commonly referred to as suicidal ideation. We achieve this understanding by analysing the characteristics of their social networks. Starting from a set of human annotated Tweets we retrieved the authors’ followers and friends lists, and identified users who retweeted the suicidal content. We subsequently built the social network graphs. Our results show a high degree of reciprocal connectivity between the authors of suicidal content when compared to other studies of Twitter users, suggesting a tightly-coupled virtual community. In addition, an analysis of the retweet graph has identified bridge nodes and hub nodes connecting users posting suicidal ideation with users who were not, thus suggesting a potential for information cascade and risk of a possible contagion effect. This is particularly emphasised by considering the combined graph merging friendship and retweeting links.
|Schools:||Computer Science & Informatics
Social Sciences (Includes Criminology and Education)
|Subjects:||H Social Sciences > HM Sociology
Q Science > QA Mathematics > QA76 Computer software
|Uncontrolled Keywords:||Social media; Social network analysis; Twitter; Computational social science; Suicide|
|Funders:||Department of Health Policy Research Programme|
|Last Modified:||13 Oct 2016 09:10|
Cited 3 times in Scopus. View in Scopus. Powered By Scopus® Data
Actions (repository staff only)