https://en.wikipedia.org/wiki/Dimensionality_reduction
https://en.wikipedia.org/wiki/K-means_clustering
https://en.wikipedia.org/wiki/Hierarchical_clustering
https://en.wikipedia.org/wiki/Time_series
https://en.wikipedia.org/wiki/Linear_regression
https://en.wikipedia.org/wiki/Beta_(finance)
https://en.wikipedia.org/wiki/Student%27s_t-test
https://en.wikipedia.org/wiki/Black–Scholes_model