Accuracy assessment methods and current challenges

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Sample size determination Often based on precision to estimate proportion p ± h = p ± z α/2 (SE) p (1 − p) SE = n 2 z / 2P(1 − P) n = α 2 h
BUT Aim is often not to estimate accuracy to a given precision but to use in a comparative analysis - comparison against a target - comparison against another accuracy (e.g. classifier comparison) ….need to consider additional properties.
Page 1 and 2: Accuracy assessment methods and cha
Page 3 and 4: Challenges include • Class defini
Page 5 and 6: Popular measures e.g. Sensitivity =
Page 7 and 8: NO, because the matrix might look l
Page 9 and 10: Impact on estimation Real accuracy
Page 11: PART 2: Comparisons Often compare (
Page 15 and 16: Comparative analysis Comparative an
Page 17 and 18: Type II error H o is incorrectly ac
Page 19 and 20: Estimating sample size To determine
Page 21 and 22: e.g. common scenario v another accu
Page 23 and 24: So what Remember, important to use
Page 25 and 26: v another accuracy

Accuracy assessment methods and current challenges

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