Like everything related to tech, statistical/machine learning, computer simulation, numerical optimization. Other things too, not mentioned in this bio!
Statistical/Machine Learning using Randomized and Quasi-Randomized (neural) networks (currently Python & R)
Univariate and multivariate time series forecasting, with uncertainty quantification (Python & R)
Miscellaneous Statistical/Machine Learning stuff (currently Python & R)
Unified interface for Gradient Boosted Decision Trees
Miscellaneous useful R functions
LaTeX template for my July 2018 Phd Thesis+Phd presentations