Search Results for author: Tilmann Gneiting

Found 7 papers, 3 papers with code

Evaluating Probabilistic Classifiers: The Triptych

no code implementations25 Jan 2023 Timo Dimitriadis, Tilmann Gneiting, Alexander I. Jordan, Peter Vogel

Probability forecasts for binary outcomes, often referred to as probabilistic classifiers or confidence scores, are ubiquitous in science and society, and methods for evaluating and comparing them are in great demand.

Evaluating probabilistic classifiers: Reliability diagrams and score decompositions revisited

no code implementations7 Aug 2020 Timo Dimitriadis, Tilmann Gneiting, Alexander I. Jordan

A probability forecast or probabilistic classifier is reliable or calibrated if the predicted probabilities are matched by ex post observed frequencies, as examined visually in reliability diagrams.

Uncertainty Quantification

Evaluating epidemic forecasts in an interval format

5 code implementations26 May 2020 Johannes Bracher, Evan L. Ray, Tilmann Gneiting, Nicholas G. Reich

For practical reasons, many forecasts of case, hospitalization and death counts in the context of the current COVID-19 pandemic are issued in the form of central predictive intervals at various levels.

Applications Populations and Evolution

Receiver operating characteristic (ROC) movies, universal ROC (UROC) curves, and coefficient of predictive ability (CPA)

2 code implementations29 Nov 2019 Tilmann Gneiting, Eva-Maria Walz

Throughout science and technology, receiver operating characteristic (ROC) curves and associated area under the curve (AUC) measures constitute powerful tools for assessing the predictive abilities of features, markers and tests in binary classification problems.

Binary Classification

Isotonic Distributional Regression

3 code implementations9 Sep 2019 Alexander Henzi, Johanna F. Ziegel, Tilmann Gneiting

Isotonic distributional regression (IDR) is a powerful nonparametric technique for the estimation of conditional distributions under order restrictions.

Methodology Statistics Theory Statistics Theory

Probabilistic Forecasting and Comparative Model Assessment Based on Markov Chain Monte Carlo Output

no code implementations24 Aug 2016 Fabian Krüger, Sebastian Lerch, Thordis L. Thorarinsdottir, Tilmann Gneiting

Based on proper scoring rules, we develop a notion of consistency that allows to assess the adequacy of methods for estimating the stationary distribution underlying the simulation output.

Methodology

Of Quantiles and Expectiles: Consistent Scoring Functions, Choquet Representations, and Forecast Rankings

no code implementations27 Mar 2015 Werner Ehm, Tilmann Gneiting, Alexander Jordan, Fabian Krüger

We show that any scoring function that is consistent for a quantile or an expectile functional, respectively, can be represented as a mixture of extremal scoring functions that form a linearly parameterized family.

Decision Making

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