25.06.2014 Views

Redes Bayesianas

Redes Bayesianas

Redes Bayesianas

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

3. Factorización<br />

Factorización de la función de densidad generalizada:<br />

• P ai conjunto de padres de X i en S<br />

ρ(x) = ρ(x 1 , x 2 , . . . , x n ) =<br />

n∏<br />

ρ(x i |pa S i )<br />

i=1<br />

• Suponiendo que la distribución de probabilidad depende de un conjunto finito de<br />

parámetros<br />

θ S = (θ 1 , . . . , θ n )<br />

ρ(x|θ S ) =<br />

n∏<br />

ρ(x i |pa S i , θ i)<br />

i=1<br />

• Modelo gráfico probabilístico M = (S, θS )<br />

<strong>Redes</strong> <strong>Bayesianas</strong> – p.17/91

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!