Search Results for author: Andreas Metzger

Found 8 papers, 2 papers with code

Self-Learning Cloud Controllers: Fuzzy Q-Learning for Knowledge Evolution

1 code implementation2 Jul 2015 Pooyan Jamshidi, Amir Sharifloo, Claus Pahl, Andreas Metzger, Giovani Estrada

The benefit is that for designing cloud controllers, we do not have to rely solely on precise design-time knowledge, which may be difficult to acquire.

Q-Learning Self-Learning

Feature-Model-Guided Online Learning for Self-Adaptive Systems

no code implementations22 Jul 2019 Andreas Metzger, Clément Quinton, Zoltán Ádám Mann, Luciano Baresi, Klaus Pohl

Existing online learning techniques randomly explore the possible adaptation actions, but this can lead to slow convergence of the learning process.

Self Adaptive System

Counterfactual Explanations for Predictive Business Process Monitoring

no code implementations24 Feb 2022 Tsung-Hao Huang, Andreas Metzger, Klaus Pohl

We thus see growing interest in explainable predictive business process monitoring, which aims to increase the interpretability of prediction models.

counterfactual Counterfactual Explanation +3

Explaining Online Reinforcement Learning Decisions of Self-Adaptive Systems

no code implementations12 Oct 2022 Felix Feit, Andreas Metzger, Klaus Pohl

Online reinforcement learning, i. e., employing reinforcement learning (RL) at runtime, is an emerging approach to realizing self-adaptive systems in the presence of design time uncertainty.

reinforcement-learning Reinforcement Learning (RL) +1

A User Study on Explainable Online Reinforcement Learning for Adaptive Systems

no code implementations9 Jul 2023 Andreas Metzger, Jan Laufer, Felix Feit, Klaus Pohl

However, Online RL requires the definition of an effective and correct reward function, which quantifies the feedback to the RL algorithm and thereby guides learning.

reinforcement-learning Reinforcement Learning (RL)

An AI Chatbot for Explaining Deep Reinforcement Learning Decisions of Service-oriented Systems

1 code implementation25 Sep 2023 Andreas Metzger, Jone Bartel, Jan Laufer

Compared to earlier work on natural-language explanations using classical software-based dialogue systems, using an AI chatbot eliminates the need for eliciting and defining potential questions and answers up-front.

Chatbot Decision Making +3

Variance of ML-based software fault predictors: are we really improving fault prediction?

no code implementations26 Oct 2023 Xhulja Shahini, Domenic Bubel, Andreas Metzger

These stochastic elements, also known as nondeterminism-introducing (NI) factors, lead to variance in the training process and as a result, lead to variance in prediction accuracy and training time.

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