English

Generalized Voter-like model on activity driven networks with attractiveness

Physics and Society 2018-08-15 v1

Abstract

We study the behavior of a generalized consensus dynamics on a temporal network of interactions, the activity driven network with attractiveness. In this temporal network model, agents are endowed with an intrinsic activity aa, ruling the rate at which they generate connections, and an intrinsic attractiveness bb, modulating the rate at which they receive connections. The consensus dynamics considered is a mixed voter/Moran dynamics. Each agent, either in state 00 or 11, modifies his/her state when connecting with a peer. Thus, an active agent copies his/her state from the peer (with probability pp) or imposes his/her state to him/her (with the complementary probability 1p1-p). Applying a heterogeneous mean-field approach, we derive a differential equation for the average density of voters with activity aa and attractiveness bb in state 11, that we use to evaluate the average time to reach consensus and the exit probability, defined as the probability that a single agent with activity aa and attractiveness bb eventually imposes his/her state to a pool of initially unanimous population in the opposite state. We study a number of particular cases, finding an excellent agreement with numerical simulations of the model. Interestingly, we observe a symmetry between voter and Moran dynamics in pure activity driven networks and their static integrated counterparts that exemplifies the strong differences that a time-varying network can impose on dynamical processes.

Keywords

Cite

@article{arxiv.1804.07476,
  title  = {Generalized Voter-like model on activity driven networks with attractiveness},
  author = {Antoine Moinet and Alain Barrat and Romualdo Pastor Satorras},
  journal= {arXiv preprint arXiv:1804.07476},
  year   = {2018}
}
R2 v1 2026-06-23T01:29:33.200Z