Search Results for author: James Large

Found 12 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

Detecting Electric Devices in 3D Images of Bags

no code implementations25 Apr 2020 Anthony Bagnall, Paul Southam, James Large, Richard Harvey

Given the massive volume of luggage that needs to be screened for this threat, the best way to automate the detection is to first filter whether a bag contains an electric device or not, and if it does, to identify the number of devices and their location.

Computed Tomography (CT)

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

From BOP to BOSS and Beyond: Time Series Classification with Dictionary Based Classifiers

no code implementations18 Sep 2018 James Large, Anthony Bagnall, Simon Malinowski, Romain Tavenard

We find that whilst ensembling is a key component for both algorithms, the effect of the other components is mixed and more complex.

General Classification Image Classification +3

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

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