Zhu, Yeying; Savage, Jennifer S.; Ghosh, Debashis - In: Journal of Causal Inference 6 (2018) 2
covariates to be the same in different treatment groups. We also introduce a new balance measure called kernel distance, which is … the empirical estimate of the probability metric defined in the reproducing kernel Hilbert spaces. Compared to the … traditional balance metrics, the kernel distance measures the difference in the two multivariate distributions instead of the …