nLab
information metric
Redirected from "normally framed submanifold".
Contents
Context
Measure and probability theory
Contents
Idea
In information geometry, a (Fisher-)information metric is a Riemannian metric on a manifold of probability distributions over some probability space (the latter often assumed to be finite).
Definition
On a finite probability space Set a positive measure is a function and a probability distribution is one such that .
This space is actually a submanifold of . For the canonical basis of tangent vectors on this wedge of Cartesian space, the information metric is given by
References
- L. L. Campbell, An extended Čencov characterization of the information metric Journal: Proc. Amer. Math. Soc. 98 (1986), 135-141. (AMS)
Created on June 17, 2011 at 17:48:10.
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