For this reason, the KL divergence is preferred to its symmetric counterpart. In addition, the logarithm in (16) downweights the effect of |𝐖⊤𝚺𝑖,𝑘𝐖|−1 in case 𝚺𝑖,𝑘 is nearly singular. 3.2. Criterion Based on the Beta Divergence The beta divergence, which is a...