The effect of the forget-remember mechanism on spreading

TL;DR

This paper introduces a forget-remember mechanism in spreading models, showing it significantly impacts message saturation and can cause spreading termination, with implications for epidemic control and phase transition phenomena.

Contribution

The study presents a novel forget-remember mechanism in spreading processes, analyzing its effects through simulations and identifying phase transitions and cluster properties.

Findings

Forget-remember mechanism affects message saturation.

Spreading can terminate under certain conditions.

Percolation-like phase transitions are observed.

Abstract

We introduce a new mechanism---the forget-remember mechanism into the spreading process. Equipped with such a mechanism an individual is prone to forget the "message" received and remember the one forgotten, namely switching his state between active (with message) and inactive (without message). The probability of state switch is governed by linear or exponential forget-remember functions of history time which is measured by the time elapsed since the most recent state change. Our extensive simulations reveal that the forget-remember mechanism has significant effects on the saturation of message spreading, and may even lead to a termination of spreading under certain conditions. This finding may shed some light on how to control the spreading of epidemics. It is found that percolation-like phase transitions can occur. By investigating the properties of clusters, formed by connected, active individuals, we may be able to justify the existence of such phase transitions.