A ranking classifier ranks 25 training examples {x;}, from highest to lowest rank, in the following...

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A ranking classifier ranks 25 training examples {x;}, from highest to lowest rank, in the following order: Highest Lowest X2, X3, X1, X5, X13, X6, XS, X7, X9, X10, X12, X11, X15, X4, X14, X21, X17, X20, X18, X22, X16, X19, X25, X23, X24 Examples x₁ through X12 are in the positive class (which should be ranked higher); examples X13 through X25 are in the negative class (which should be ranked lower). (a) How many ranking errors are there? (b) What is the ranking error rate? (c) What is the ranking accuracy? A ranking classifier ranks 25 training examples {x;}, from highest to lowest rank, in the following order: Highest Lowest X2, X3, X1, X5, X13, X6, XS, X7, X9, X10, X12, X11, X15, X4, X14, X21, X17, X20, X18, X22, X16, X19, X25, X23, X24 Examples x₁ through X12 are in the positive class (which should be ranked higher); examples X13 through X25 are in the negative class (which should be ranked lower). (a) How many ranking errors are there? (b) What is the ranking error rate? (c) What is the ranking accuracy? A ranking classifier ranks 25 training examples {x;}, from highest to lowest rank, in the following order: Highest Lowest X2, X3, X1, X5, X13, X6, XS, X7, X9, X10, X12, X11, X15, X4, X14, X21, X17, X20, X18, X22, X16, X19, X25, X23, X24 Examples x₁ through X12 are in the positive class (which should be ranked higher); examples X13 through X25 are in the negative class (which should be ranked lower). (a) How many ranking errors are there? (b) What is the ranking error rate? (c) What is the ranking accuracy? A ranking classifier ranks 25 training examples {x;}, from highest to lowest rank, in the following order: Highest Lowest X2, X3, X1, X5, X13, X6, XS, X7, X9, X10, X12, X11, X15, X4, X14, X21, X17, X20, X18, X22, X16, X19, X25, X23, X24 Examples x₁ through X12 are in the positive class (which should be ranked higher); examples X13 through X25 are in the negative class (which should be ranked lower). (a) How many ranking errors are there? (b) What is the ranking error rate? (c) What is the ranking accuracy?

Answer rating: 100% (QA)

Explanations a There are 13 ranking errors The ranking classifier incorrectly ranked the foll... View the full answer