Stability analysis of a fractional online social network model

2020 ◽  
Vol 178 ◽  
pp. 625-645
Author(s):  
John R. Graef ◽  
Lingju Kong ◽  
Andrew Ledoan ◽  
Min Wang
Keyword(s):  
Social Network ◽  
Stability Analysis ◽  
Network Model ◽  
Online Social Network

scholarly journals An Online Social Network model through Twitter to build a social perception variable to measure the violence in Mexico

2020 ◽  
Vol 7 (2-1) ◽  
pp. 6-18
Author(s):  
Manuel Suárez Gutiérrez ◽  
José Luis Sánchez Cervantes ◽  
Mario Andrés Paredes Valverde
Keyword(s):  
Social Network ◽  
Network Model ◽  
Social Perception ◽  
Online Social Network ◽  
Time Lapse ◽  
High Impact ◽  
Specific Time

This paper describes the methodology and the model that used in Twitter to create an indicator that allows us to denote a social perception about violence, a topic of high impact in Mexico. We investigated and validated the keywords that Mexicans used related to this topic, in a specific time-lapse defined by the researchers. We implemented two analysis levels, the first one relative to the sum of tweets, and the second one with a rate of total tweets per 100,000 inhabitan

Facebooking Alone? Millennials’ Use of Social Network Sites and Volunteering

2019 ◽  
Vol 49 (1) ◽  
pp. 203-217 ◽  
Author(s):  
Young-joo Lee
Keyword(s):  
Cohort Study ◽  
Social Network ◽  
Civic Engagement ◽  
Online Social Network ◽  
Social Network Sites ◽  
Positive Association ◽  
Prosocial Behaviors ◽  
Network Site ◽  
Facebook Use ◽  
Mixed Messages

The younger generation’s widespread use of online social network sites has raised concerns and debates about social network sites’ influence on this generation’s civic engagement, whether these sites undermine or promote prosocial behaviors. This study empirically examines how millennials’ social network site usage relates to volunteering, using the 2013 data of the Minnesota Adolescent Community Cohort Study. The findings reveal a positive association between a moderate level of Facebook use and volunteering, although heavy users are not more likely to volunteer than nonusers. This bell-shaped relationship between Facebook use and volunteering contrasts with the direct correlation between participation in off-line associational activities and volunteering. Overall, the findings suggest that it is natural to get mixed messages about social network sites’ impacts on civic engagement, and these platforms can be useful tools for getting the word out and recruiting episodic volunteers.

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