The Power of the Pruned Exact Linear Time(PELT) Test in Multiple Changepoint Detection

  title={The Power of the Pruned Exact Linear Time(PELT) Test in Multiple Changepoint Detection},
  author={Gachomo Dorcas Wambui and Gichuhi Anthony Waititu and Anthony Kibira Wanjoya},
  journal={American Journal of Theoretical and Applied Statistics},
Changepoint detection is the problem of estimating the point at which the statistical properties of a sequence of observations change. Over the years several multiple changepoint search algorithms have been proposed to overcome this challenge. They include binary segmentation algorithm, the Segment neighbourhood algorithm and the Pruned Exact Linear Time (PELT) algorithm. The PELT algorithm is exact and under mild conditions has a computational cost that is linear in the number of data points… 

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