Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10259/4749
Combining univariate approaches for ensemble change detection in multivariate data
Information Fusion. 2019, V. 45, p. 202-214
Fecha de publicación
Detecting change in multivariate data is a challenging problem, especially when class labels are not available. There is a large body of research on univariate change detection, notably in control charts developed originally for engineering applications. We evaluate univariate change detection approaches —including those in the MOA framework — built into ensembles where each member observes a feature in the input space of an unsupervised change detection problem. We present a comparison between the ensemble combinations and three established ‘pure’ multivariate approaches over 96 data sets, and a case study on the KDD Cup 1999 network intrusion detection dataset. We found that ensemble combination of univariate methods consistently outperformed multivariate methods on the four experimental metrics.
Versión del editor