TY  - JOUR
AV  - none
TI  - Invasion percolation and the time scaling behavior of a queuing model of human dynamics
KW  - diffusion; percolation problems (theory); growth processes;  stochastic processes (theory)
Y1  - 2009///
UR  - http://dx.doi.org/10.1088/1742-5468/2009/02/P02046
IS  - 02
JF  - Journal of Statistical Mechanics: Theory and Experiment
A1  - Gabrielli, Andrea
A1  - Caldarelli, Guido
SN  - 1742-5468
PB  - IOPscience
N2  - In this paper we study the properties of the Barabási model of queuing under the hypothesis that the number of tasks is steadily growing in time. We map this model exactly onto an invasion percolation dynamics on a Cayley tree. This allows us to recover the correct waiting time distribution PW(?)~??3/2 at the stationary state (as observed in different realistic data) and also to characterize it as a sequence of causally and geometrically connected bursts of activity. We also find that the approach to stationarity is very slow.
ID  - eprints1078
VL  - 2009
ER  -