DOI QR코드

DOI QR Code

Improving Sample Entropy Based on Nonparametric Quantile Estimation

  • 투고 : 20110300
  • 심사 : 20110500
  • 발행 : 2011.07.31

초록

Sample entropy (Vasicek, 1976) has poor performance, and several nonparametric entropy estimators have been proposed as alternatives. In this paper, we consider a piecewise uniform density function based on quantiles, which enables us to evaluate entropy in each interval, and study the poor performance of the sample entropy in terms of the poor estimation of lower and upper quantiles. Then we propose some improved entropy estimators by simply modifying the quantile estimators, and compare their performances with some existing estimators.

키워드

참고문헌

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