log-Evidence () ratios, for the collective state versus the finite-state case, for the ten most-edited pages on Wikipedia.

In cases where the collective state model is strongly favored (large, positive ), we show the best-fit value of the parameter (see Eq. 6). Eight pages show strong (-value ) evidence for the collective state (CS) model of Eq. 6 over and above that for the sum of exponentials (nEXP). The strongest evidence in favor of finite-state computation is found for two of the three “death list” pages, which collate otherwise unrelated information from other parts of the encyclopedia. Appendix S4 in the File S1 gives details on the use and computation of for model selection.