Search Results for author: Claudia Linnhoff-Popien

Found 49 papers, 12 papers with code

A Reinforcement Learning Environment for Directed Quantum Circuit Synthesis

no code implementations13 Jan 2024 Michael Kölle, Tom Schubert, Philipp Altmann, Maximilian Zorn, Jonas Stein, Claudia Linnhoff-Popien

With recent advancements in quantum computing technology, optimizing quantum circuits and ensuring reliable quantum state preparation have become increasingly vital.

Benchmarking reinforcement-learning

Quantum Denoising Diffusion Models

no code implementations13 Jan 2024 Michael Kölle, Gerhard Stenzel, Jonas Stein, Sebastian Zielinski, Björn Ommer, Claudia Linnhoff-Popien

In recent years, machine learning models like DALL-E, Craiyon, and Stable Diffusion have gained significant attention for their ability to generate high-resolution images from concise descriptions.

Denoising Image Generation +2

Quantum Advantage Actor-Critic for Reinforcement Learning

no code implementations13 Jan 2024 Michael Kölle, Mohamad Hgog, Fabian Ritz, Philipp Altmann, Maximilian Zorn, Jonas Stein, Claudia Linnhoff-Popien

In this work, we propose a novel quantum reinforcement learning approach that combines the Advantage Actor-Critic algorithm with variational quantum circuits by substituting parts of the classical components.

reinforcement-learning

ClusterComm: Discrete Communication in Decentralized MARL using Internal Representation Clustering

no code implementations7 Jan 2024 Robert Müller, Hasan Turalic, Thomy Phan, Michael Kölle, Jonas Nüßlein, Claudia Linnhoff-Popien

In the realm of Multi-Agent Reinforcement Learning (MARL), prevailing approaches exhibit shortcomings in aligning with human learning, robustness, and scalability.

Clustering Multi-agent Reinforcement Learning +1

Towards Efficient Quantum Anomaly Detection: One-Class SVMs using Variable Subsampling and Randomized Measurements

no code implementations14 Dec 2023 Michael Kölle, Afrae Ahouzi, Pascal Debus, Robert Müller, Danielle Schuman, Claudia Linnhoff-Popien

Quantum computing, with its potential to enhance various machine learning tasks, allows significant advancements in kernel calculation and model precision.

Anomaly Detection

Towards Transfer Learning for Large-Scale Image Classification Using Annealing-based Quantum Boltzmann Machines

no code implementations27 Nov 2023 Daniëlle Schuman, Leo Sünkel, Philipp Altmann, Jonas Stein, Christoph Roch, Thomas Gabor, Claudia Linnhoff-Popien

Quantum Transfer Learning (QTL) recently gained popularity as a hybrid quantum-classical approach for image classification tasks by efficiently combining the feature extraction capabilities of large Convolutional Neural Networks with the potential benefits of Quantum Machine Learning (QML).

Classification Computed Tomography (CT) +3

Disentangling Quantum and Classical Contributions in Hybrid Quantum Machine Learning Architectures

no code implementations9 Nov 2023 Michael Kölle, Jonas Maurer, Philipp Altmann, Leo Sünkel, Jonas Stein, Claudia Linnhoff-Popien

We propose a novel hybrid architecture: instead of utilizing a pre-trained network for compression, we employ an autoencoder to derive a compressed version of the input data.

Quantum Machine Learning Transfer Learning

Multi-Agent Quantum Reinforcement Learning using Evolutionary Optimization

no code implementations9 Nov 2023 Michael Kölle, Felix Topp, Thomy Phan, Philipp Altmann, Jonas Nüßlein, Claudia Linnhoff-Popien

We showed that our Variational Quantum Circuit approaches perform significantly better compared to a neural network with a similar amount of trainable parameters.

Autonomous Driving Multi-agent Reinforcement Learning +1

Applying QNLP to sentiment analysis in finance

1 code implementation20 Jul 2023 Jonas Stein, Ivo Christ, Nicolas Kraus, Maximilian Balthasar Mansky, Robert Müller, Claudia Linnhoff-Popien

As an application domain where the slightest qualitative improvements can yield immense value, finance is a promising candidate for early quantum advantage.

Sentiment Analysis

Improving Primate Sounds Classification using Binary Presorting for Deep Learning

no code implementations28 Jun 2023 Michael Kölle, Steffen Illium, Maximilian Zorn, Jonas Nüßlein, Patrick Suchostawski, Claudia Linnhoff-Popien

In the field of wildlife observation and conservation, approaches involving machine learning on audio recordings are becoming increasingly popular.

Data Augmentation Multi-class Classification

Weight Re-Mapping for Variational Quantum Algorithms

no code implementations9 Jun 2023 Michael Kölle, Alessandro Giovagnoli, Jonas Stein, Maximilian Balthasar Mansky, Julian Hager, Tobias Rohe, Robert Müller, Claudia Linnhoff-Popien

Inspired by the remarkable success of artificial neural networks across a broad spectrum of AI tasks, variational quantum circuits (VQCs) have recently seen an upsurge in quantum machine learning applications.

Quantum Machine Learning

Compression of GPS Trajectories using Autoencoders

no code implementations18 Jan 2023 Michael Kölle, Steffen Illium, Carsten Hahn, Lorenz Schauer, Johannes Hutter, Claudia Linnhoff-Popien

The ubiquitous availability of mobile devices capable of location tracking led to a significant rise in the collection of GPS data.

Dynamic Time Warping

SEQUENT: Towards Traceable Quantum Machine Learning using Sequential Quantum Enhanced Training

1 code implementation6 Jan 2023 Philipp Altmann, Leo Sünkel, Jonas Stein, Tobias Müller, Christoph Roch, Claudia Linnhoff-Popien

However, as high-dimensional real-world applications are not yet feasible to be solved using purely quantum hardware, hybrid methods using both classical and quantum machine learning paradigms have been proposed.

Image Classification Quantum Machine Learning +1

Empirical Analysis of Limits for Memory Distance in Recurrent Neural Networks

no code implementations20 Dec 2022 Steffen Illium, Thore Schillman, Robert Müller, Thomas Gabor, Claudia Linnhoff-Popien

Common to all different kinds of recurrent neural networks (RNNs) is the intention to model relations between data points through time.

VoronoiPatches: Evaluating A New Data Augmentation Method

no code implementations20 Dec 2022 Steffen Illium, Gretchen Griffin, Michael Kölle, Maximilian Zorn, Jonas Nüßlein, Claudia Linnhoff-Popien

We primarily utilize non-linear recombination of information within an image, fragmenting and occluding small information patches.

Data Augmentation

Constructing Organism Networks from Collaborative Self-Replicators

no code implementations20 Dec 2022 Steffen Illium, Maximilian Zorn, Cristian Lenta, Michael Kölle, Claudia Linnhoff-Popien, Thomas Gabor

We introduce organism networks, which function like a single neural network but are composed of several neural particle networks; while each particle network fulfils the role of a single weight application within the organism network, it is also trained to self-replicate its own weights.

Capturing Dependencies within Machine Learning via a Formal Process Model

no code implementations10 Aug 2022 Fabian Ritz, Thomy Phan, Andreas Sedlmeier, Philipp Altmann, Jan Wieghardt, Reiner Schmid, Horst Sauer, Cornel Klein, Claudia Linnhoff-Popien, Thomas Gabor

We define a comprehensive SD process model for ML that encompasses most tasks and artifacts described in the literature in a consistent way.

Stochastic Market Games

no code implementations15 Jul 2022 Kyrill Schmid, Lenz Belzner, Robert Müller, Johannes Tochtermann, Claudia Linnhoff-Popien

Some of the most relevant future applications of multi-agent systems like autonomous driving or factories as a service display mixed-motive scenarios, where agents might have conflicting goals.

Autonomous Driving

Black Box Optimization Using QUBO and the Cross Entropy Method

1 code implementation24 Jun 2022 Jonas Nüßlein, Christoph Roch, Thomas Gabor, Jonas Stein, Claudia Linnhoff-Popien, Sebastian Feld

A common approach to realising BBO is to learn a surrogate model which approximates the target black-box function which can then be solved via white-box optimization methods.

Case-Based Inverse Reinforcement Learning Using Temporal Coherence

1 code implementation12 Jun 2022 Jonas Nüßlein, Steffen Illium, Robert Müller, Thomas Gabor, Claudia Linnhoff-Popien

As a prior, we assume that the higher-level strategy is to reach an unknown target state area, which we hypothesize is a valid prior for many domains in Reinforcement Learning.

Imitation Learning reinforcement-learning +2

Quantifying Multimodality in World Models

no code implementations14 Dec 2021 Andreas Sedlmeier, Michael Kölle, Robert Müller, Leo Baudrexel, Claudia Linnhoff-Popien

In this work, we analyze existing and propose new metrics for the detection and quantification of multimodal uncertainty in RL based World Models.

Reinforcement Learning (RL)

VAST: Value Function Factorization with Variable Agent Sub-Teams

1 code implementation NeurIPS 2021 Thomy Phan, Fabian Ritz, Lenz Belzner, Philipp Altmann, Thomas Gabor, Claudia Linnhoff-Popien

We evaluate VAST in three multi-agent domains and show that VAST can significantly outperform state-of-the-art VFF, when the number of agents is sufficiently large.

Multi-agent Reinforcement Learning

Acoustic Leak Detection in Water Networks

no code implementations11 Dec 2020 Robert Müller, Steffen Illium, Fabian Ritz, Tobias Schröder, Christian Platschek, Jörg Ochs, Claudia Linnhoff-Popien

In this work, we present a general procedure for acoustic leak detection in water networks that satisfies multiple real-world constraints such as energy efficiency and ease of deployment.

Anomaly Detection

Content-based Recommendations for Radio Stations with Deep Learned Audio Fingerprints

no code implementations15 Jul 2020 Stefan Langer, Liza Obermeier, André Ebert, Markus Friedrich, Emma Munisamy, Claudia Linnhoff-Popien

That is why finding stations playing the preferred content is a tough task for a potential listener, especially due to the overwhelming number of offered choices.

Recommendation Systems

Policy Entropy for Out-of-Distribution Classification

no code implementations25 May 2020 Andreas Sedlmeier, Robert Müller, Steffen Illium, Claudia Linnhoff-Popien

One critical prerequisite for the deployment of reinforcement learning systems in the real world is the ability to reliably detect situations on which the agent was not trained.

Benchmarking Classification +5

Insights on Training Neural Networks for QUBO Tasks

no code implementations29 Apr 2020 Thomas Gabor, Sebastian Feld, Hila Safi, Thomy Phan, Claudia Linnhoff-Popien

Current hardware limitations restrict the potential when solving quadratic unconstrained binary optimization (QUBO) problems via the quantum approximate optimization algorithm (QAOA) or quantum annealing (QA).

Traveling Salesman Problem

Optimizing Geometry Compression using Quantum Annealing

no code implementations30 Mar 2020 Sebastian Feld, Markus Friedrich, Claudia Linnhoff-Popien

The compression of geometry data is an important aspect of bandwidth-efficient data transfer for distributed 3d computer vision applications.

Cross Entropy Hyperparameter Optimization for Constrained Problem Hamiltonians Applied to QAOA

2 code implementations11 Mar 2020 Christoph Roch, Alexander Impertro, Thomy Phan, Thomas Gabor, Sebastian Feld, Claudia Linnhoff-Popien

Such algorithms are usually implemented in a variational form, combining a classical optimization method with a quantum machine to find good solutions to an optimization problem.

Quantum Physics

Uncertainty-Based Out-of-Distribution Classification in Deep Reinforcement Learning

no code implementations31 Dec 2019 Andreas Sedlmeier, Thomas Gabor, Thomy Phan, Lenz Belzner, Claudia Linnhoff-Popien

We further present a first viable solution for calculating a dynamic classification threshold, based on the uncertainty distribution of the training data.

Bayesian Inference Classification +4

Soccer Team Vectors

no code implementations30 Jul 2019 Robert Müller, Stefan Langer, Fabian Ritz, Christoph Roch, Steffen Illium, Claudia Linnhoff-Popien

In this work we present STEVE - Soccer TEam VEctors, a principled approach for learning real valued vectors for soccer teams where similar teams are close to each other in the resulting vector space.

BIG-bench Machine Learning

Adaptive Thompson Sampling Stacks for Memory Bounded Open-Loop Planning

1 code implementation11 Jul 2019 Thomy Phan, Thomas Gabor, Robert Müller, Christoph Roch, Claudia Linnhoff-Popien

We propose Stable Yet Memory Bounded Open-Loop (SYMBOL) planning, a general memory bounded approach to partially observable open-loop planning.

Thompson Sampling

Emergent Escape-based Flocking Behavior using Multi-Agent Reinforcement Learning

no code implementations10 May 2019 Carsten Hahn, Thomy Phan, Thomas Gabor, Lenz Belzner, Claudia Linnhoff-Popien

In nature, flocking or swarm behavior is observed in many species as it has beneficial properties like reducing the probability of being caught by a predator.

Multi-agent Reinforcement Learning reinforcement-learning +1

Distributed Policy Iteration for Scalable Approximation of Cooperative Multi-Agent Policies

no code implementations25 Jan 2019 Thomy Phan, Kyrill Schmid, Lenz Belzner, Thomas Gabor, Sebastian Feld, Claudia Linnhoff-Popien

We experimentally evaluate STEP in two challenging and stochastic domains with large state and joint action spaces and show that STEP is able to learn stronger policies than standard multi-agent reinforcement learning algorithms, when combining multi-agent open-loop planning with centralized function approximation.

Decision Making Multi-agent Reinforcement Learning

Uncertainty-Based Out-of-Distribution Detection in Deep Reinforcement Learning

no code implementations8 Jan 2019 Andreas Sedlmeier, Thomas Gabor, Thomy Phan, Lenz Belzner, Claudia Linnhoff-Popien

Although prior work has shown that dropout-based variational inference techniques and bootstrap-based approaches can be used to model epistemic uncertainty, the suitability for detecting OOD samples in deep reinforcement learning remains an open question.

Bayesian Inference Open-Ended Question Answering +4

Inheritance-Based Diversity Measures for Explicit Convergence Control in Evolutionary Algorithms

no code implementations30 Oct 2018 Thomas Gabor, Lenz Belzner, Claudia Linnhoff-Popien

Diversity is an important factor in evolutionary algorithms to prevent premature convergence towards a single local optimum.

Evolutionary Algorithms

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