Query variables - PowerPoint PPT Presentation

Representation Size

Representation Size. At first glance it would appear that the space to represent a Bayes Net is necessarily quadratic (possible number of arcs) in the number of random variables.

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423 views • 33 slides

CSE 636 Data Integration

CSE 636 Data Integration. Answering Queries Using Views Bucket Algorithm. The Bucket Algorithm. Each subgoal g of Q must be “covered” by some view Make a list of candidates (buckets) per query subgoal Consider combinations of candidates from different buckets Not all combos are “compatible”

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281 views • 17 slides

Conditional Independence

Conditional Independence. As with absolute independence, the equivalent forms of X and Y being conditionally independent given Z can also be used: P ( X|Y, Z ) = P ( X|Z ) and P ( Y|X, Z ) = P ( Y|Z ). Example of the Key Property. The following conditional independence holds:

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685 views • 13 slides

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