1 code implementation • 15 Apr 2021 • Matthew Middlehurst, James Large, Michael Flynn, Jason Lines, Aaron Bostrom, Anthony Bagnall
Since it was first proposed in 2016, the algorithm has remained state of the art for accuracy on the UCR time series classification archive.
no code implementations • 13 Apr 2020 • Anthony Bagnall, Michael Flynn, James Large, Jason Lines, Matthew Middlehurst
The Hierarchical Vote Collective of Transformation-based Ensembles (HIVE-COTE) is a heterogeneous meta ensemble for time series classification.
no code implementations • 17 Sep 2019 • Markus Löning, Anthony Bagnall, Sajaysurya Ganesh, Viktor Kazakov, Jason Lines, Franz J. Király
We present sktime -- a new scikit-learn compatible Python library with a unified interface for machine learning with time series.
1 code implementation • 31 Oct 2018 • Anthony Bagnall, Hoang Anh Dau, Jason Lines, Michael Flynn, James Large, Aaron Bostrom, Paul Southam, Eamonn Keogh
In 2002, the UCR time series classification archive was first released with sixteen datasets.
no code implementations • 25 Oct 2017 • James Large, Jason Lines, Anthony Bagnall
We show that the Heterogeneous Ensembles of Standard Classification Algorithms (HESCA), which ensembles based on error estimates formed on the train data, is significantly better (in terms of error, balanced error, negative log likelihood and area under the ROC curve) than its individual components, picking the component that is best on train data, and a support vector machine tuned over 1089 different parameter configurations.
no code implementations • 28 Mar 2017 • Anthony Bagnall, Aaron Bostrom, James Large, Jason Lines
We describe what results we expected from each class of algorithm and data representation, then observe whether these prior beliefs are supported by the experimental evidence.
no code implementations • 4 Feb 2016 • Anthony Bagnall, Aaron Bostrom, James Large, Jason Lines
These algorithms have been evaluated on subsets of the 47 data sets in the University of California, Riverside time series classification archive.
no code implementations • 14 Jul 2014 • Anthony Bagnall, Jon Hills, Jason Lines
Two are greedy algorithms based on pairwise comparison, and the third uses a heuristic measure of set quality to find the motif set directly.
no code implementations • 18 Jun 2014 • Anthony Bagnall, Jason Lines
Specifically, we compare 1-NN classifiers with Euclidean and DTW distance to standard classifiers, examine whether the performance of 1-NN Euclidean approaches that of 1-NN DTW as the number of cases increases, assess whether there is any benefit of setting $k$ for $k$-NN through cross validation whether it is worth setting the warping path for DTW through cross validation and finally is it better to use a window or weighting for DTW.