Efficient optimization of the likelihood function in Gaussian process modelling. - A. Butler; Ronald D. Haynes; Thomas Donald Humphries; Pritam Ranjan (Comput. Stat. Data Anal., 2014)

A Closer Look At Differential Evolution For The Optimal Well Placement Problem. - Grazieli Luiza Costa Carosio; Thomas Donald Humphries; Ronald Dale Haynes; Colin Glennie Farquharson (GECCO, 2015)