贝叶斯错误率

贝叶斯错误率(Bayes error rate)是应用贝叶斯分类规则的分类器的错误率。贝叶斯分类规则的一个性质是:在最小化分类错误率上是最优的。[1]所以在分类问题中,贝叶斯错误率是一个分类器对某个类别所能达到的最低的分类错误率。[2][3]

错误测定

定义

其中为错误率,是测试样本.为分类的类个数,所对应有着最大概率的区域,是一个参数矩阵其中是单位矩阵.[1]

参见

参考文献

  1. Sergios, Konstantinos Pattern Reconginiton Fourth Edition by ISBN 9787121102783 page 9
  2. Fukunaga, Keinosuke (1990) Introduction to Statistical Pattern Recognition by ISBN 0122698517 pages 3 and 97
  3. K. Tumer, K. (1996) "Estimating the Bayes error rate through classifier combining" in Proceedings of the 13th International Conference on Pattern Recognition, Volume 2, 695–699
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