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Redes Bayesianas

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9. Selección de variables en microarrays de ADN<br />

X 1 ... X i ... X n C<br />

1 x 1 1<br />

... x 1 i<br />

... x 1 n c 1<br />

... ... ... ... ... ... ...<br />

j x j 1<br />

... x j i<br />

... x j n c j<br />

... ... ... ... ... ... ...<br />

R x R 1<br />

... x R i<br />

... x R n c R<br />

• n número de genes (n = 2000, n = 7129)<br />

• R tamaño de muestra (R = 62, R = 72)<br />

• Xi i-ésimo gen con i = 1, . . . , n<br />

• x<br />

j<br />

i<br />

nivel de expresión del i-ésimo gen para el caso j-ésimo<br />

• c j ∈ {0, 1} para todo j = 1, . . . , R<br />

<strong>Redes</strong> <strong>Bayesianas</strong> – p.78/91

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