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Polarization of coalitions in an agent-based model of political discourse
Springer Science and Business Media LLC - Tập 1 - Trang 1-22 - 2014
Political discourse is the verbal interaction between political actors in a policy domain. This article explains the formation of polarized advocacy or discourse coalitions in this complex phenomenon by presenting a dynamic, stochastic, and discrete agent-based model based on graph theory and local optimization. In a series of thought experiments, actors compute their utility of contributing a spe......
Including traffic jam avoidance in an agent-based network model
Springer Science and Business Media LLC - Tập 5 - Trang 1-12 - 2018
Understanding traffic is an important challenge in different scientific fields. While there are many approaches to constructing traffic models, most of them rely on origin–destination data and have difficulties when phenomena should be investigated that have an effect on the origin–destination matrix. A macroscopic traffic model is introduced that is novel in the sense that no origin–destination d......
Tracking online topics over time: understanding dynamic hashtag communities
Springer Science and Business Media LLC - Tập 5 - Trang 1-18 - 2018
Hashtags are widely used for communication in online media. As a condensed version of information, they characterize topics and discussions. For their analysis, we apply methods from network science and propose novel tools for tracing their dynamics in time-dependent data. The observations are characterized by bursty behaviors in the increases and decreases of hashtag usage. These features can be ......
Calling, texting, and moving: multidimensional interactions of mobile phone users
Springer Science and Business Media LLC - Tập 2 - Trang 1-24 - 2015
The communication networks obtained by using mobile phone datasets have drawn increasing attention in recent years. Studies have led to important advances in understanding the behavior of mobile users although they have just considered text message (short message service (SMS)), call data, and spatial proximity, separately. However, there is a growing awareness that human sociality is expressed si......
Why continuous discussion can promote the consensus of opinions?
Springer Science and Business Media LLC - Tập 3 - Trang 1-12 - 2016
Why group opinions tend to be converged through continued communication, discussion and interactions? Under the framework of the social influence network model, we rigorously prove that the group consensus is almost surely within finite steps. This is a quite certain result, and reflects the real-world common phenomenon. In addition, we give a convergence time lower bound. Although our explanation......
Understanding how retweets influence the behaviors of social networking service users via agent-based simulationAbstract The retweet is a characteristic mechanism of several social network services/social media, such as Facebook, Twitter, and Weibo. By retweeting tweet, users can share an article with their friends and followers. However, it is not clear how retweets affect the dominant behaviors of users. Therefore, this study investigates the impact of retweets on the behav... ...
Springer Science and Business Media LLC - Tập 8 Số 1 - 2021
Fairness norm through social networks: a simulation approach
Springer Science and Business Media LLC - Tập 8 - Trang 1-16 - 2021
Recently there has been an increased interest in adopting game-theoretic models to social norms. Most of these approaches are generally lacking a structure linking the local level of the ‘norm’ interaction to its global ‘social’ nature. Although numerous studies examined local-interaction games, where the emphasis is placed on neighborhood relations, regarding social network as a whole unique enti......
A robust optimization model for influence maximization in social networks with heterogeneous nodes
Springer Science and Business Media LLC - Tập 8 - Trang 1-17 - 2021
Influence maximization is the problem of trying to maximize the number of influenced nodes by selecting optimal seed nodes, given that influencing these nodes is costly. Due to the probabilistic nature of the problem, existing approaches deal with the concept of the expected number of nodes. In the current research, a scenario-based robust optimization approach is taken to finding the most influen......
Modeling the transmission dynamics of racism propagation with community resilience
Springer Science and Business Media LLC - Tập 8 - Trang 1-18 - 2021
Racism spreading can have a vital influence on people’s lives, declining adherence, pretending political views, and recruiters’ socio-economical crisis. Besides, Web 2.0 technologies have democratized the creation and propagation of racist information, which facilitated the rapid spreading of racist messages. In this research work, the impact of community resilience on the spread dynamics of racis......
A network science-based k-means++ clustering method for power systems network equivalence
Springer Science and Business Media LLC - Tập 6 - Trang 1-25 - 2019
Network equivalence is a technique useful for many areas including power systems. In many power system analyses, generation shift factor (GSF)-based bus clustering methods have been widely used to reduce the complexity of the equivalencing problem. GSF captures power flow on a line when power is injected at a node using bus to bus electrical distance. A more appropriate measure is the one which ca......
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