Pattern Recognition - Chapter 3: Bayes decision rule

(*Source: Richard O.Duda et al. Pattern Recognition)

1. Bayes decision rule

1.1. Risk function

1.1.1. Simple cost function

(*Source: http://www.writeups.org/songoku-age-23-dragon-ball/)

Equation (1)

1.1.2. Risk function depends the correct class

(*Source: http://dragonballwiki.de/Son-Goku)​

Equation (2)

1.1.3. Risk function over all samples

(*Source:www.xemgame.com/ngoc-rong-dai-chien-khi-gioi-cosplay-dau-dau-voi-kieu-toc-cua-songoku-post144659.html)

Equation (3)

1.2. Bayes decision rule

Equation (4)

2. Discriminant functions and decision boundaries

2.1. Discriminant function

(*Source: Richard O.Duda et al. Pattern Recognition)

2.2. Decision boundary

(*Source: Richard O.Duda et al. Pattern Recognition)

#Bayesdecisionrule #decisionboundary #discriminantfunction #Riskfunction