A local method for estimating change points: the “Hat-function”
A local method for estimating change points: the “Hat-function”
复制标题
估计变化点的局部方法:“帽子函数”
DOI:
10.1080/02331880008802714
复制
发表时间:
2000
期刊:
影响因子:
1.9
通讯作者:
P. Bertrand
中科院分区:
文献类型:
--
作者:
P. Bertrand
We propose a non-parametric local method for estimating change points on the mean of a sequence of independent r.v. (X i ) i = 1, …, n . Making the difference between the moving average of X i on a right box and a left box of size A we get a function k ↦ D(A, k) which presents as “hat-function” at each change point. We estimate the change point as the maximum of D(A, k) after thresholding. We give bounds on the error for this change point estimator. As a by-product, we build a test of the existence of abrupt changes and we get bounds on the error probabilities of type 1 and 2. Since the test and the change point estimator take only into account information on boxes of size 2A these procedures are local and therefore well adapted to the case of more than one change point.
DOI:
10.2307/2670145
发表时间:
1996-06
期刊:
--
影响因子:
--
作者:
A. Borodin;P. Salminen
通讯作者:
A. Borodin;P. Salminen