Search Results for author: Marcel Wever

Found 21 papers, 9 papers with code

Automated Machine Learning for Multi-Label Classification

no code implementations28 Feb 2024 Marcel Wever

Automated machine learning (AutoML) aims to select and configure machine learning algorithms and combine them into machine learning pipelines tailored to a dataset at hand.

AutoML Classification +1

Information Leakage Detection through Approximate Bayes-optimal Prediction

no code implementations25 Jan 2024 Pritha Gupta, Marcel Wever, Eyke Hüllermeier

To address these limitations, we establish a theoretical framework using statistical learning theory and information theory to accurately quantify and detect IL.

AutoML Learning Theory

Iterative Deepening Hyperband

no code implementations1 Feb 2023 Jasmin Brandt, Marcel Wever, Dimitrios Iliadis, Viktor Bengs, Eyke Hüllermeier

Hyperparameter optimization (HPO) is concerned with the automated search for the most appropriate hyperparameter configuration (HPC) of a parameterized machine learning algorithm.

Hyperparameter Optimization

PyExperimenter: Easily distribute experiments and track results

1 code implementation16 Jan 2023 Tanja Tornede, Alexander Tornede, Lukas Fehring, Lukas Gehring, Helena Graf, Jonas Hanselle, Felix Mohr, Marcel Wever

PyExperimenter is a tool to facilitate the setup, documentation, execution, and subsequent evaluation of results from an empirical study of algorithms and in particular is designed to reduce the involved manual effort significantly.

Meta-Learning for Automated Selection of Anomaly Detectors for Semi-Supervised Datasets

no code implementations24 Nov 2022 David Schubert, Pritha Gupta, Marcel Wever

In anomaly detection, a prominent task is to induce a model to identify anomalies learned solely based on normal data.

Anomaly Detection Meta-Learning

Hyperparameter optimization in deep multi-target prediction

1 code implementation8 Nov 2022 Dimitrios Iliadis, Marcel Wever, Bernard De Baets, Willem Waegeman

As a result of the ever increasing complexity of configuring and fine-tuning machine learning models, the field of automated machine learning (AutoML) has emerged over the past decade.

Benchmarking Hyperparameter Optimization +5

A Survey of Methods for Automated Algorithm Configuration

no code implementations3 Feb 2022 Elias Schede, Jasmin Brandt, Alexander Tornede, Marcel Wever, Viktor Bengs, Eyke Hüllermeier, Kevin Tierney

We review existing AC literature within the lens of our taxonomies, outline relevant design choices of configuration approaches, contrast methods and problem variants against each other, and describe the state of AC in industry.

Naive Automated Machine Learning

1 code implementation29 Nov 2021 Felix Mohr, Marcel Wever

An essential task of Automated Machine Learning (AutoML) is the problem of automatically finding the pipeline with the best generalization performance on a given dataset.

AutoML Bayesian Optimization +1

Automated Machine Learning, Bounded Rationality, and Rational Metareasoning

no code implementations10 Sep 2021 Eyke Hüllermeier, Felix Mohr, Alexander Tornede, Marcel Wever

The notion of bounded rationality originated from the insight that perfectly rational behavior cannot be realized by agents with limited cognitive or computational resources.

AutoML BIG-bench Machine Learning

Algorithm Selection on a Meta Level

1 code implementation20 Jul 2021 Alexander Tornede, Lukas Gehring, Tanja Tornede, Marcel Wever, Eyke Hüllermeier

The problem of selecting an algorithm that appears most suitable for a specific instance of an algorithmic problem class, such as the Boolean satisfiability problem, is called instance-specific algorithm selection.

Ensemble Learning Meta-Learning

Replacing the Ex-Def Baseline in AutoML by Naive AutoML

no code implementations ICML Workshop AutoML 2021 Felix Mohr, Marcel Wever

Automated Machine Learning (AutoML) is the problem of automatically finding the pipeline with the best generalization performance on some given dataset.

AutoML Bayesian Optimization +1

Annotation Uncertainty in the Context of Grammatical Change

no code implementations15 May 2021 Marie-Luis Merten, Marcel Wever, Michaela Geierhos, Doris Tophinke, Eyke Hüllermeier

This paper elaborates on the notion of uncertainty in the context of annotation in large text corpora, specifically focusing on (but not limited to) historical languages.

Naive Automated Machine Learning -- A Late Baseline for AutoML

no code implementations18 Mar 2021 Felix Mohr, Marcel Wever

Automated Machine Learning (AutoML) is the problem of automatically finding the pipeline with the best generalization performance on some given dataset.

AutoML Bayesian Optimization +1

Towards Meta-Algorithm Selection

1 code implementation17 Nov 2020 Alexander Tornede, Marcel Wever, Eyke Hüllermeier

Instance-specific algorithm selection (AS) deals with the automatic selection of an algorithm from a fixed set of candidates most suitable for a specific instance of an algorithmic problem class, where "suitability" often refers to an algorithm's runtime.

A Flexible Class of Dependence-aware Multi-Label Loss Functions

no code implementations2 Nov 2020 Eyke Hüllermeier, Marcel Wever, Eneldo Loza Mencia, Johannes Fürnkranz, Michael Rapp

For evaluating such predictions, the set of predicted labels needs to be compared to the ground-truth label set associated with that instance, and various loss functions have been proposed for this purpose.

Multi-Label Classification

Reliable Part-of-Speech Tagging of Historical Corpora through Set-Valued Prediction

1 code implementation4 Aug 2020 Stefan Heid, Marcel Wever, Eyke Hüllermeier

Syntactic annotation of corpora in the form of part-of-speech (POS) tags is a key requirement for both linguistic research and subsequent automated natural language processing (NLP) tasks.

Part-Of-Speech Tagging POS +2

Run2Survive: A Decision-theoretic Approach to Algorithm Selection based on Survival Analysis

1 code implementation6 Jul 2020 Alexander Tornede, Marcel Wever, Stefan Werner, Felix Mohr, Eyke Hüllermeier

In an extensive experimental study with the standard benchmark ASlib, our approach is shown to be highly competitive and in many cases even superior to state-of-the-art AS approaches.

Survival Analysis

Extreme Algorithm Selection With Dyadic Feature Representation

1 code implementation29 Jan 2020 Alexander Tornede, Marcel Wever, Eyke Hüllermeier

Algorithm selection (AS) deals with selecting an algorithm from a fixed set of candidate algorithms most suitable for a specific instance of an algorithmic problem, e. g., choosing solvers for SAT problems.

Hyperparameter Optimization Meta-Learning

ML-Plan: Automated machine learning via hierarchical planning

1 code implementation Machine Learning 2018 Felix Mohr, Marcel Wever, Eyke Hüllermeier

Automated machine learning (AutoML) seeks to automatically select, compose, and parametrize machine learning algorithms, so as to achieve optimal performance on a given task (dataset).

AutoML BIG-bench Machine Learning

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