2. Bayes Decision Theory. Prof. A.L. Yuille Stat 231. Fall 2004. Decisions with Uncertainty. Bayes Decision Theory is a theory for how to make decisions in the presence of uncertainty. Input data x. Salmon y= +1, Sea Bass y=-1. Learn decision rule: f(x) taking values .
Prof. A.L. Yuille
Stat 231. Fall 2004.
means and s.d. .
but same covariance
Conceptually straightforward – see Duda, Hart & Stork.
The decision partitionsf the feature space into k subspaces