title: Micro-level dynamics of the online information propagation: A user behavior model based on noisy spiking neurons.
abstract: We develop and validate a model of the micro-level dynamics underlying the formation of macro-level information propagation patterns in online social networks. In particular, we address the dynamics at the level of the mechanism regulating a user's participation in an online information propagation process. We demonstrate that this mechanism can be realistically described by the dynamics of noisy spiking neurons driven by endogenous and exogenous, deterministic and stochastic stimuli representing the influence modulating one's intention to be an information spreader. Depending on the dynamically changing influence characteristics, time-varying propagation patterns emerge reflecting the temporal structure, strength, and signal-to-noise ratio characteristics of the stimulation driving the online users' information sharing activity. The proposed model constitutes an overarching, novel, and flexible approach to the modeling of the micro-level mechanisms whereby information propagates in online social networks. As such, it can be used for a comprehensive understanding of the online transmission of information, a process integral to the sociocultural evolution of modern societies. The proposed model is highly adaptable and suitable for the study of the propagation patterns of behavior, opinions, and innovations among others.
authors.affiliation: Department of Management Science and Technology, Athens University of Economics and Business, 47a Evelpidon Str., Athens, 11362, Greece. Electronic address: eliasliber@aueb.gr.
authors.forename: Ilias N
authors.initials: IN
authors.lastname: Lymperopoulos
authors.affiliation: Department of Management Science and Technology, Athens University of Economics and Business, 47a Evelpidon Str., Athens, 11362, Greece.
authors.forename: George D
authors.initials: GD
authors.lastname: Ioannou
mesh_terms: D000200:Action Potentials / Q000502:physiology; D006801:Humans; D008959:Models, Neurological; D009474:Neurons / Q000502:physiology; D059629:Signal-To-Noise Ratio
keywords: Agent-based modeling; Neural network; Noisy leaky integrate-and-fire neuron; Online information propagation; Online social network; User behavior modeling