Maximum likelihood estimator Accelerated failure time models 2 Censored data 2 Censored observations 2 Error distributions 2 Errors 2 Finite-sample distribution 2 Intelligent systems 2 Markov-switching model 2 Maximum likelihood 2 Maximum likelihood estimation 2 Mean square error 2 Monte Carlo methods 2 Quantile distance estimates 2 Regime shifts 2 Sampling 2 Science and Technology 2 Truncated maximum likelihood estimators 2 Weighted likelihood estimators 2 τ estimators 2