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Qué (quién) es variational inequality - definición
Variational inequality
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In mathematics, a variational inequality is an inequality involving a functional, which has to be solved for all possible values of a given variable, belonging usually to a convex set. The mathematical theory of variational inequalities was initially developed to deal with equilibrium problems, precisely the Signorini problem: in that model problem, the functional involved was obtained as the first variation of the involved potential energy.
Differential variational inequality
In mathematics, a differential variational inequality (DVI) is a dynamical system that incorporates ordinary differential equations and variational inequalities or complementarity problems.
Variational Bayesian methods
MATHEMATICAL METHODS USED IN BAYESIAN INFERENCE AND MACHINE LEARNING
Variational bayes; Variational Bayes; Variational Bayesian method; Variational inference; Variational free energy
Variational Bayesian methods are a family of techniques for approximating intractable integrals arising in Bayesian inference and machine learning. They are typically used in complex statistical models consisting of observed variables (usually termed "data") as well as unknown parameters and latent variables, with various sorts of relationships among the three types of random variables, as might be described by a graphical model.
