منابع مشابه
Multi-Stage Complex Contagions
The spread of ideas across a social network can be studied using complex contagion models, in which agents are activated by contact with multiple activated neighbors. The investigation of complex contagions can provide crucial insights into social influence and behavior-adoption cascades on networks. In this paper, we introduce a model of a multi-stage complex contagion on networks. Agents at d...
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There has been a great deal of effort to try to model social influence-including the spread of behavior, norms, and ideas-on networks. Most models of social influence tend to assume that individuals react to changes in the states of their neighbors without any time delay, but this is often not true in social contexts, where (for various reasons) different agents can have different response time...
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Blocking the propagation of contagions in populations has many applications, such as stopping the dissemination of leaked information and impeding the spread of an ideology or opinion. Several methods exist for blocking contagions by removing key or critical nodes from a network representation of a population. Some methods, based on network topology alone, run very fast, but their performance c...
متن کاملComplex contagions and hybrid phase transitions
A complex contagion is an infectious process in which individuals may require multiple transmissions before changing state. These are used to model behaviours if an individual only adopts a particular behaviour after perceiving a consensus among others. We may think of individuals as beginning inactive and becoming active once they are contacted by a sufficient number of active partners. These ...
متن کاملMessage-Passing Methods for Complex Contagions
Message-passing methods provide a powerful approach for calculating the expected size of cascades either on random networks (e.g., drawn from a configuration-model ensemble or its generalizations) asymptotically as the number N of nodes becomes infinite or on specific finite-size networks. We review the message-passing approach and show how to derive it for configurationmodel networks using the...
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ژورنال
عنوان ژورنال: Chaos: An Interdisciplinary Journal of Nonlinear Science
سال: 2013
ISSN: 1054-1500,1089-7682
DOI: 10.1063/1.4790836