Preliminary results on relative performance of expected and observed fisher information. - Xumeng Cao; James C. Spall (CDC, 2009)

Preliminary results in comparing the expected and observed Fisher information for maximum likelihood estimates. - Xumeng Cao; James C. Spall (CISS, 2009)

Preliminary results on non-bernoulli distribution of perturbations for simultaneous perturbation stochastic approximation. - Xumeng Cao (ACC, 2011)

Effective perturbation distributions for small samples in simultaneous perturbation stochastic approximation. - Xumeng Cao (CISS, 2011)

Relative performance of expected and observed fisher information in covariance estimation for maximum likelihood estimates. - Xumeng Cao; James C. Spall (ACC, 2012)

Demonstration of enhanced Monte Carlo computation of the fisher information for complex problems. - Xumeng Cao (ACC, 2013)