Search Results for author: Jason Lines

Found 9 papers, 2 papers with code

HIVE-COTE 2.0: a new meta ensemble for time series classification

1 code implementation15 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.

General Classification Time Series +2

A tale of two toolkits, report the third: on the usage and performance of HIVE-COTE v1.0

no code implementations13 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.

Time Series Time Series Analysis +1

sktime: A Unified Interface for Machine Learning with Time Series

no code implementations17 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.

BIG-bench Machine Learning Time Series +2

The Heterogeneous Ensembles of Standard Classification Algorithms (HESCA): the Whole is Greater than the Sum of its Parts

no code implementations25 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.

Decision Making General Classification

Simulated Data Experiments for Time Series Classification Part 1: Accuracy Comparison with Default Settings

no code implementations28 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.

General Classification Time Series +2

The Great Time Series Classification Bake Off: An Experimental Evaluation of Recently Proposed Algorithms. Extended Version

no code implementations4 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.

General Classification Time Series +2

Finding Motif Sets in Time Series

no code implementations14 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.

Time Series Time Series Analysis

An Experimental Evaluation of Nearest Neighbour Time Series Classification

no code implementations18 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.

Classification Dynamic Time Warping +5

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