Search Results for author: Idris A. Eckley

Found 5 papers, 3 papers with code

Innovative And Additive Outlier Robust Kalman Filtering With A Robust Particle Filter

no code implementations7 Jul 2020 Alexander T. M. Fisch, Idris A. Eckley, P. Fearnhead

In this paper, we propose CE-BASS, a particle mixture Kalman filter which is robust to both innovative and additive outliers, and able to fully capture multi-modality in the distribution of the hidden state.

Subset Multivariate Collective And Point Anomaly Detection

no code implementations4 Sep 2019 Alexander T. M. Fisch, Idris A. Eckley, Paul Fearnhead

In recent years, there has been a growing interest in identifying anomalous structure within multivariate data streams.

Anomaly Detection

A linear time method for the detection of point and collective anomalies

1 code implementation5 Jun 2018 Alexander T. M. Fisch, Idris A. Eckley, Paul Fearnhead

Theoretical results establish the consistency of CAPA at detecting collective anomalies and, as a by-product, the consistency of a popular penalised cost based change in mean and variance detection method.

Minimum Spectral Connectivity Projection Pursuit

1 code implementation4 Sep 2015 David P. Hofmeyr, Nicos G. Pavlidis, Idris A. Eckley

We study the problem of determining the optimal low dimensional projection for maximising the separability of a binary partition of an unlabelled dataset, as measured by spectral graph theory.

Clustering Dimensionality Reduction

Efficient penalty search for multiple changepoint problems

1 code implementation11 Dec 2014 Kaylea Haynes, Idris A. Eckley, Paul Fearnhead

The computational complexity of this approach can be linear in the number of data points and linear in the difference between the number of changepoints in the optimal segmentations for the smallest and largest penalty values.

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