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Find best function
that models given data.
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How to define the
best function?
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Fidelity to the
data – error on existing data: E(h,D)
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Simplicity – how
complicated is the solution: C(h)
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One measure: how
many possible hypotheses for the class?
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Inevitable
tradeoff between complexity of
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hypothesis and
degree of fit to the data
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Minimize α
E(h,D) + (1-α) C(h)
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Where α is a
tuning parameter
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