Search Results for author: Angus Dempster

Found 7 papers, 7 papers with code

QUANT: A Minimalist Interval Method for Time Series Classification

1 code implementation2 Aug 2023 Angus Dempster, Daniel F. Schmidt, Geoffrey I. Webb

We show that it is possible to achieve the same accuracy, on average, as the most accurate existing interval methods for time series classification on a standard set of benchmark datasets using a single type of feature (quantiles), fixed intervals, and an 'off the shelf' classifier.

Classification Time Series +1

HYDRA: Competing convolutional kernels for fast and accurate time series classification

1 code implementation25 Mar 2022 Angus Dempster, Daniel F. Schmidt, Geoffrey I. Webb

We present HYDRA, a simple, fast, and accurate dictionary method for time series classification using competing convolutional kernels, combining key aspects of both ROCKET and conventional dictionary methods.

Time Series Time Series Analysis +1

MultiRocket: Multiple pooling operators and transformations for fast and effective time series classification

1 code implementation31 Jan 2021 Chang Wei Tan, Angus Dempster, Christoph Bergmeir, Geoffrey I. Webb

We propose MultiRocket, a fast time series classification (TSC) algorithm that achieves state-of-the-art performance with a tiny fraction of the time and without the complex ensembling structure of many state-of-the-art methods.

General Classification Time Series +2

MINIROCKET: A Very Fast (Almost) Deterministic Transform for Time Series Classification

2 code implementations16 Dec 2020 Angus Dempster, Daniel F. Schmidt, Geoffrey I. Webb

ROCKET achieves state-of-the-art accuracy with a fraction of the computational expense of most existing methods by transforming input time series using random convolutional kernels, and using the transformed features to train a linear classifier.

General Classification Time Series +2

ROCKET: Exceptionally fast and accurate time series classification using random convolutional kernels

6 code implementations29 Oct 2019 Angus Dempster, François Petitjean, Geoffrey I. Webb

Most methods for time series classification that attain state-of-the-art accuracy have high computational complexity, requiring significant training time even for smaller datasets, and are intractable for larger datasets.

General Classification Time Series +2

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