Data as a Second Language® Learn the Art of Data Science
Latest Articles
Latest Data Science Terms
Ornstein-Uhlenbeck Process
An aspect of Brownian motion dealing with the velocity of the movement of a particle.
Ordination
The process of reducing the dimensionality (i.e. the number of variables) of multivariate data by deriving a small number of new variables
Ordered Alternative Hypothesis
A hypothesis that specifies an order for a set of parameters of interest as an alternative to their equality, rather than simply
Oracle Property
A name given to methods for estimating the regression parameters in models fitted to high dimensional data that have the property that
Option-3 Scheme
A scheme of measurement used in situations investigating possible changes over time in longitudinal data. The scheme is designed to prevent measurement
Optimization Methods
Procedures for finding the maxima or minima of functions of, generally, several variables. Most often encountered in statistics in the context of
Optimal Scaling
The process of simultaneously transforming proximity data and representing the transformed data by a geometrical (often a Euclidean distance) model.
Opinion Survey
A procedure that aims to ascertain opinions possessed by members of some population with regard to particular topics.
Operational Research
Research concerned with applying scientific methods to the problems facing executive and administrative authorities.