Description: E-BJ algorithm is a semiparametric version of the AFT mixture model for latent subgroup analysis with a completely unknown error distribution in each subgroup.
Reference :Altstein L, Li G. Latent subgroup analysis of a randomized clinical trial through a semiparametric accelerated failure time mixture model. Biometrics. 2013 Mar;69(1):52-61. doi: 10.1111/j.1541-0420.2012.01818.x. Epub 2013 Feb 5. PMID: 23383608; PMCID: PMC3622121.