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P-log: Probabilistic Reasoning with Answer Set Programming

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P-<strong>log</strong><br />

Causal probability statements<br />

The indiference principle has set all outcomes equally probable,<br />

but we can fix probabilities.<br />

Suppose that, when you select color white, stones are introduced<br />

in an irregular urn so that, due to the stone shapes, the probability<br />

of picking the black stone is 1 3 .<br />

We add the statement:<br />

[r] pr(draw=1|selcolor=white)=1/3.<br />

Which is the probability of getting help now when selecting white?<br />

and when we select black?<br />

P. Cabalar ( Depto. Computación P-<strong>log</strong> University of Corunna, SPAIN ) May 9, 2013 21 / 25

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