Algebraic statistical models

Details Algebraic statistical models Algebraic statistical models

2007-03-20

arxiv.org/abs/math/0703609v1

Statistica Sinica 2007, Vol. 17, 1273-1297

Mathematics

Statistics Theory

Scientific paper

Many statistical models are algebraic in that they are defined in terms of polynomial constraints, or in terms of polynomial or rational parametrizations. The parameter spaces of such models are typically semi-algebraic subsets of the parameter space of a reference model with nice properties, such as for example a regular exponential family. This observation leads to the definition of an `algebraic exponential family'. This new definition provides a unified framework for the study of statistical models with algebraic structure. In this paper we review the ingredients to this definition and illustrate in examples how computational algebraic geometry can be used to solve problems arising in statistical inference in algebraic models.

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