Hence, Li (2008) suggests using the geometric mean estimator instead of the median sample: 9 We suggest computing theL 1 ( u, v) in Equation 9 using arithmetic mean of logarithm-transformed values of |u i − v i |.
using the logarithmic identities, the multiplications and the power in Equation 9 are, respectively, transformed to a sum and a multiplication: Equation 10 for computingL 1 is more plausible for computational implementation than Equation 9 (e.g.