Fig. 7.

Intersite connections. (A) Parameterization of the intersite exchange model with two examples from the Tell Beydar region (Fig. 8); goodness of fit is estimated at hollow way locations by the difference of traffic in hollow way direction (red, class “1”) and any other direction (black, class “0”), measured by the area under the curve (AUC) of the receiver-operator-characteristic (ROC). (B–E) Results for different parameterizations of the exchange model; lines indicate median; shades indicate quartiles of 10 differently sampled datasets. Optimal values are indicated in red (B and D), although nearby parameters indicated black (crosses in C; functions in E) behave similarly well for distances beyond 1,500 m (dotted line, E), all differing visibly from functions and parameters indicated yellow. AUC ROC, area under the curve of the receiver operator characteristic.