9. Cross-validation Flashcards

1
Q

What is the prediction problem?

A
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2
Q

How do we quantify prediction error?

A
  • To quantify the prediction error, one needs to specify the discrepancy d(y, ˆy)
    between a prediction ˆy and the actual response y. We can do it for regression and classification
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3
Q

What is the true error rate?

A
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4
Q

How does the mean squared error relate to the true error?

A

the mse is the closest we casn get?

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5
Q

What is cross validation how does it work

A
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6
Q
A
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7
Q
A
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