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	Individuazione di Punti di Rottura (PELT)	Analisi Sequenziale (Disegno Sequenziale di Gruppo)
Campo	Statistica	Statistica
Famiglia	Machine learning	Hypothesis test
Anno di origine	2012	1977
Ideatore	Killick, Fearnhead & Eckley	P. C. O'Brien & T. R. Fleming; P. C. Pocock
Tipo	Sequential segmentation algorithm	Sequential / adaptive hypothesis test
Fonte seminale	Killick, R., Fearnhead, P., & Eckley, I. A. (2012). Optimal detection of changepoints with a linear computational cost. Journal of the American Statistical Association, 107(500), 1590–1598.	O'Brien, P.C. & Fleming, T.R. (1979). A Multiple Testing Procedure for Clinical Trials. Biometrics, 35(3), 549–556.
Alias	Structural Break Detection, Breakpoint Analysis, Regime Change Detection, Değişim Noktası Tespiti	sequential testing, group sequential design, interim analysis, Sıralı Analiz (Sequential Testing / Group Sequential Design)
Correlati	2	5
Sintesi	Change-Point Detection identifies time points at which the statistical properties of a sequence — such as mean, variance, or distribution — shift abruptly. The Pruned Exact Linear Time (PELT) algorithm, introduced by Killick, Fearnhead, and Eckley (2012), solves the penalized segmentation problem exactly while achieving linear expected computational cost, making it practical for long time series encountered in genomics, finance, climatology, and signal processing.	Sequential analysis is a framework for conducting hypothesis tests with pre-planned interim looks at accumulating data, allowing a study to stop early for efficacy or futility while controlling the overall Type I error rate. The group sequential approach was formalised by Pocock (1977) and O'Brien and Fleming (1979), and remains the standard for confirmatory clinical trials and rigorous A/B experiments.