Search Results for author: Markus Pauly

Found 15 papers, 2 papers with code

Behind the Screen: Investigating ChatGPT's Dark Personality Traits and Conspiracy Beliefs

no code implementations6 Feb 2024 Erik Weber, Jérôme Rutinowski, Markus Pauly

This paper tries to shed light on this, providing an in-depth analysis of the dark personality traits and conspiracy beliefs of GPT-3. 5 and GPT-4.

The Self-Perception and Political Biases of ChatGPT

no code implementations14 Apr 2023 Jérôme Rutinowski, Sven Franke, Jan Endendyk, Ina Dormuth, Markus Pauly

In addition, ChatGPT's Big Five personality traits were tested using the OCEAN test and its personality type was queried using the Myers-Briggs Type Indicator (MBTI) test.

Language Modelling Large Language Model

RODD: Robust Outlier Detection in Data Cubes

no code implementations14 Mar 2023 Lara Kuhlmann, Daniel Wilmes, Emmanuel Müller, Markus Pauly, Daniel Horn

We propose a general type of test data and examine all methods in a simulation study.

Outlier Detection

Comparing statistical and machine learning methods for time series forecasting in data-driven logistics -- A simulation study

no code implementations13 Mar 2023 Lena Schmid, Moritz Roidl, Markus Pauly

Many planning and decision activities in logistics and supply chain management are based on forecasts of multiple time dependent factors.

Management Time Series +1

Dataset Bias in Human Activity Recognition

no code implementations19 Jan 2023 Nilah Ravi Nair, Lena Schmid, Fernando Moya Rueda, Markus Pauly, Gernot A. Fink, Christopher Reining

It is unknown what physical characteristics and/or soft-biometrics, such as age, height, and weight, need to be taken into account to train a classifier to achieve robustness towards heterogeneous populations in the training and testing data.

Human Activity Recognition Time Series +1

Learning Causal Graphs in Manufacturing Domains using Structural Equation Models

no code implementations26 Oct 2022 Maximilian Kertel, Stefan Harmeling, Markus Pauly

Many production processes are characterized by numerous and complex cause-and-effect relationships.

Estimating Gaussian Copulas with Missing Data

no code implementations14 Jan 2022 Maximilian Kertel, Markus Pauly

In this work we present a rigorous application of the Expectation Maximization algorithm to determine the marginal distributions and the dependence structure in a Gaussian copula model with missing data.

Using Sequential Statistical Tests for Efficient Hyperparameter Tuning

no code implementations23 Dec 2021 Philip Buczak, Andreas Groll, Markus Pauly, Jakob Rehof, Daniel Horn

Hyperparameter tuning is one of the the most time-consuming parts in machine learning.

On the Relation between Prediction and Imputation Accuracy under Missing Covariates

no code implementations9 Dec 2021 Burim Ramosaj, Justus Tulowietzki, Markus Pauly

In this work, we analyze through simulation the interaction between imputation accuracy and prediction accuracy in regression learning problems with missing covariates when Machine Learning based methods for both, imputation and prediction are used.

BIG-bench Machine Learning Imputation +4

Is there a role for statistics in artificial intelligence?

no code implementations13 Sep 2020 Sarah Friedrich, Gerd Antes, Sigrid Behr, Harald Binder, Werner Brannath, Florian Dumpert, Katja Ickstadt, Hans Kestler, Johannes Lederer, Heinz Leitgöb, Markus Pauly, Ansgar Steland, Adalbert Wilhelm, Tim Friede

The research on and application of artificial intelligence (AI) has triggered a comprehensive scientific, economic, social and political discussion.

Travel Time Prediction using Tree-Based Ensembles

1 code implementation28 May 2020 He Huang, Martin Pouls, Anne Meyer, Markus Pauly

The computational results show that the addition of this routing data can be beneficial to the model performance.

Asymptotic Unbiasedness of the Permutation Importance Measure in Random Forest Models

no code implementations5 Dec 2019 Burim Ramosaj, Markus Pauly

Due to its intuitive idea and flexible usage, it is important to explore circumstances, for which the permutation importance based on Random Forest correctly indicates informative covariates.

Econometrics regression +1

Who wins the Miss Contest for Imputation Methods? Our Vote for Miss BooPF

1 code implementation30 Nov 2017 Burim Ramosaj, Markus Pauly

In this paper we study whether this approach can even be enhanced by other methods such as the stochastic gradient tree boosting method, the C5. 0 algorithm or modified random forest procedures.

Imputation

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