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Asymptotic estimate of probability of misclassification for discriminant rules based on density estimates

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  • Chanda, Kamal C.
  • Ruymgaart, F. H.

Abstract

Let X1,..., X1 and Y1,..., Yn be independent random samples from the distribution functions (d.f.) F and G respectively. Assume that F' = f and G' = g. The discriminant rule for classifying and independently sampled observation Z to F if and to G, otherwise where l and n are the estimates of f and g respectively based on a common kernel function and the training X- and Y-samples, are considered optimal in some sense. Let Pf denote the probability measure under the assumption that Z ~ F and set P0 = Pf(f(Z) > g(Z)) and . In this article we have derived the rate at which PN --> P0 as N = l + n --> [infinity], for the situation where l = n, F(x) = TM(x - [theta]2) and G(x) = M(x - [theta]1) for some symmetric d.f. M and parameters [theta]1, [theta]2. We have examined a few special cases of M and have established that the rate of convergence of PN to P0 depends critically on the tail behavior of m = M'.

Suggested Citation

  • Chanda, Kamal C. & Ruymgaart, F. H., 1989. "Asymptotic estimate of probability of misclassification for discriminant rules based on density estimates," Statistics & Probability Letters, Elsevier, vol. 8(1), pages 81-88, May.
    • Handle: RePEc:eee:stapro:v:8:y:1989:i:1:p:81-88
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    Cited by:

    1. Baíllo, Amparo & Cuesta-Albertos, Juan A. & Cuevas, Antonio, 2001. "Convergence rates in nonparametric estimation of level sets," Statistics & Probability Letters, Elsevier, vol. 53(1), pages 27-35, May.

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