Search Results for author: Tim Leathart

Found 5 papers, 0 papers with code

Temporal Probability Calibration

no code implementations7 Feb 2020 Tim Leathart, Maksymilian Polaczuk

In many applications, accurate class probability estimates are required, but many types of models produce poor quality probability estimates despite achieving acceptable classification accuracy.

Ensembles of Nested Dichotomies with Multiple Subset Evaluation

no code implementations8 Sep 2018 Tim Leathart, Eibe Frank, Bernhard Pfahringer, Geoffrey Holmes

A system of nested dichotomies is a method of decomposing a multi-class problem into a collection of binary problems.

On the Calibration of Nested Dichotomies for Large Multiclass Tasks

no code implementations8 Sep 2018 Tim Leathart, Eibe Frank, Bernhard Pfahringer, Geoffrey Holmes

Nested dichotomies are used as a method of transforming a multiclass classification problem into a series of binary problems.

Binary Classification General Classification

Probability Calibration Trees

no code implementations31 Jul 2018 Tim Leathart, Eibe Frank, Geoffrey Holmes, Bernhard Pfahringer

Obtaining accurate and well calibrated probability estimates from classifiers is useful in many applications, for example, when minimising the expected cost of classifications.

regression

Building Ensembles of Adaptive Nested Dichotomies with Random-Pair Selection

no code implementations7 Apr 2016 Tim Leathart, Bernhard Pfahringer, Eibe Frank

A system of nested dichotomies is a method of decomposing a multi-class problem into a collection of binary problems.

General Classification

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