The total number of participations.

<p>The probability distribution of the total number of participations obtained from the empirical data (red circles), simulations (blue circles) and numerical iterative algorithm (green triangles). The full line is the best fit to truncated power law, <i>x</i>^−<i>α</i><i>e</i>^−<i>Bx</i>, while the dashed and dash-dot line denote the best fit to power-law distribution, <i>x</i>^−<i>γ</i> and exponential distribution, <i>e</i>^{−<i>λx</i>}, respectively.</p

The number of successive participations.

<p>The probability distribution of the number of successive participations, <i>x</i>_<i>s</i>, obtained from empirical data (red circles) and numerical simulations of the model (blue circles). The full, dashed and dash-dot line are the best fit to truncated power law, power-law and exponential function respectively.</p

The time lag between the two successive participations.

<p>The probability distribution of the time lags between two consecutive conference participations <i>y</i>_<i>s</i>: empirical data (red circles) and numerical simulations data (blue circles). The lines correspond to respective fits as in Figs <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0148528#pone.0148528.g001" target="_blank">1</a> and <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0148528#pone.0148528.g002" target="_blank">2</a>.</p