We have estimated the multidimensional poverty index (MPI) using the dual cut-off method developed by Alkire and Foster (2007, 2011), which is disseminated in the Human Development Report (HDR) 2010 (UNDP 2010).
In addition, the condition map based on the dual cut-off relative permittivity criteria showed a good agreement with the attenuation method, in comparison to that based on the conventional single cut-off relative permittivity criteria in Korea expressways. .
On the contrary, Fig. 14b shows a concrete condition map based on a dual cut-off relative permittivity: regions were judged to be damaged when the cut-off relative permittivity was lower than 6.0 or higher than 11.0.
In addition, the condition map based on the dual cut-off relative permittivity criteria showed a good agreement with the attenuation method, in comparison to that based on the conventional single cut-off relative permittivity criteria in Korea expressways.
It is noteworthy that the damaged areas estimated by the dual cut-off relative permittivity criteria are larger than those judged by visual inspection (especially on spans 4 and 5 on JB-3N).
Table 4 summarizes the estimated damaged areas of each of the spans based on the condition maps obtained from the three different GPR analysis methods (i.e., single- and dual cut-off relative permittivity and depth-corrected attenuation criteria).
Overall, the condition map based on the dual cut-off criteria (see Fig. 14b) appears to be more closely correlated with the visual inspection map than the condition map based on a single cut-off relative permittivity criteria (see Fig. 14a).
However, overall damage indices that were based on the dual cut-off relative permittivity showed a fairly good correlation with those evaluated from the depth-corrected attenuation criteria, although the damage indices that were based on the single value-based criteria tended to underestimate the concrete's condition.
31 ABIC is a dual cut-off model which generates a trichotomous classification into low, intermediate and high risk of death.
Perhaps creating a low, intermediate and high-risk group for disease using dual cut-points would enable treatment with different intensities.
