Mathematics – Probability
Scientific paper
2004-04-05
Mathematics
Probability
14 pages
Scientific paper
We investigate a simple stochastic model of social network formation by the process of reinforcement learning with discounting of the past. In the limit, for any value of the discounting parameter, small, stable cliques are formed. However, the time it takes to reach the limiting state in which cliques have formed is very sensitive to the discounting parameter. Depending on this value, the limiting result may or may not be a good predictor for realistic observation times.
Pemantle Robin
Skyrms Brian
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