Digital Ecology: Coexistence and Domination among Interacting Networks

Abstract

The overwhelming success of the web 2.0, with online social networks as key actors, has induced a paradigm shift in the nature of human interactions. The user-driven character of these services for the first time has allowed researchers to quantify large-scale social patterns. However, the mechanisms that determine the fate of networks at a system level are still poorly understood. For instance, the simultaneous existence of numerous digital services naturally raises the question under which conditions these services can coexist. In analogy to population dynamics, the digital world is forming a complex ecosystem of interacting networks whose fitnesses depend on their ability to attract and maintain users' attention, which constitutes a limited resource. In this paper, we introduce an ecological theory of the digital world which exhibits a stable coexistence of several networks as well as the domination of a single one, in contrast to the principle of competitive exclusion. Interestingly, our model also predicts that the most probable outcome is the coexistence of a moderate number of services, in agreement with empirical observations.

References in corpus (13)

• Emergence of scaling in random networks
• Statistical physics of social dynamics
• Bose-Einstein condensation in complex networks
• Popularity versus Similarity in Growing Networks
• Growing networks with local rules: preferential attachment, clustering hierarchy and degree correlations
• Generic scale of the "scale-free" growing networks
• The Spontaneous Emergence of Social Influence in Online Systems
• The Digital Evolution of Occupy Wall Street
• Social network dynamics of face-to-face interactions
• Competition-induced criticality in a model of meme popularity
• Scale-free network growth by ranking
• A Simple Generative Model of Collective Online Behaviour
• Evolution of the digital society reveals balance between viral and mass media influence

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• A model for meme popularity growth in social networking systems based on biological principle and human interest dynamics