Quantifying the Effect of Sentiment on Information Diffusion in Social Media

PeerJ Computer Science 1, e26, 2015

15 Pages Posted: 12 Jun 2017  

Emilio Ferrara

University of Southern California - Information Sciences Institute

Zeyao Yang

Indiana University Bloomington, School of Informatics and Computing, Students

Date Written: September 30, 2015

Abstract

Social media has become the main vehicle of information production and consumption online. Millions of users every day log on their Facebook or Twitter accounts to get updates and news, read about their topics of interest, and become exposed to new opportunities and interactions. Although recent studies suggest that the contents users produce will affect the emotions of their readers, we still lack a rigorous understanding of the role and effects of contents sentiment on the dynamics of information diffusion.

This work aims at quantifying the effect of sentiment on information diffusion, to understand:

(i) whether positive conversations spread faster and/or broader than negative ones (or vice-versa);

(ii) what kind of emotions are more typical of popular conversations on social media; and,

(iii) what type of sentiment is expressed in conversations characterized by different temporal dynamics.

Our findings show that, at the level of contents, negative messages spread faster than positive ones, but positive ones reach larger audiences, suggesting that people are more inclined to share and favorite positive contents, the so-called positive bias. As for the entire conversations, we highlight how different temporal dynamics exhibit different sentiment patterns: for example, positive sentiment builds up for highly-anticipated events, while unexpected events are mainly characterized by negative sentiment. Our contribution represents a step forward to understand how the emotions expressed in short texts correlate with their spreading in online social ecosystems, and may help to craft effective policies and strategies for content generation and diffusion.

Suggested Citation

Ferrara, Emilio and Yang, Zeyao, Quantifying the Effect of Sentiment on Information Diffusion in Social Media (September 30, 2015). PeerJ Computer Science 1, e26, 2015. Available at SSRN: https://ssrn.com/abstract=2982630

Emilio Ferrara (Contact Author)

University of Southern California - Information Sciences Institute ( email )

United States

HOME PAGE: http://emilio.ferrara.name

Zeyao Yang

Indiana University Bloomington, School of Informatics and Computing, Students ( email )

Bloomington, IN
United States

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