Search Results for author: Nico Piatkowski

Found 21 papers, 4 papers with code

Computing Marginal and Conditional Divergences between Decomposable Models with Applications

no code implementations13 Oct 2023 Loong Kuan Lee, Geoffrey I. Webb, Daniel F. Schmidt, Nico Piatkowski

Doing so tractably is non-trivial as we need to decompose the divergence between these distributions and therefore, require a decomposition over the marginal and conditional distributions of these models.

Explaining Quantum Circuits with Shapley Values: Towards Explainable Quantum Machine Learning

1 code implementation22 Jan 2023 Raoul Heese, Thore Gerlach, Sascha Mücke, Sabine Müller, Matthias Jakobs, Nico Piatkowski

The resulting attributions can be interpreted as explanations for why a specific circuit works well for a given task, improving the understanding of how to construct parameterized (or variational) quantum circuits, and fostering their human interpretability in general.

Explainable Artificial Intelligence (XAI) Quantum Machine Learning

Shapley Values with Uncertain Value Functions

no code implementations19 Jan 2023 Raoul Heese, Sascha Mücke, Matthias Jakobs, Thore Gerlach, Nico Piatkowski

We propose a novel definition of Shapley values with uncertain value functions based on first principles using probability theory.

Full Kullback-Leibler-Divergence Loss for Hyperparameter-free Label Distribution Learning

no code implementations5 Sep 2022 Maurice Günder, Nico Piatkowski, Christian Bauckhage

The concept of Label Distribution Learning (LDL) is a technique to stabilize classification and regression problems with ambiguous and/or imbalanced labels.

Age Estimation regression

On Quantum Circuits for Discrete Graphical Models

no code implementations1 Jun 2022 Nico Piatkowski, Christa Zoufal

In this work, we provide the first method that allows one to provably generate unbiased and independent samples from general discrete factor models with a quantum circuit.

Informed Pre-Training on Prior Knowledge

no code implementations23 May 2022 Laura von Rueden, Sebastian Houben, Kostadin Cvejoski, Christian Bauckhage, Nico Piatkowski

In this paper, we propose a novel informed machine learning approach and suggest to pre-train on prior knowledge.

QUBOs for Sorting Lists and Building Trees

no code implementations15 Mar 2022 Christian Bauckhage, Thore Gerlach, Nico Piatkowski

We show that the fundamental tasks of sorting lists and building search trees or heaps can be modeled as quadratic unconstrained binary optimization problems (QUBOs).

Computing Divergences between Discrete Decomposable Models

no code implementations8 Dec 2021 Loong Kuan Lee, Nico Piatkowski, François Petitjean, Geoffrey I. Webb

We show that we are able to compute a wide family of functionals and divergences, such as the alpha-beta divergence, between two decomposable models, i. e. chordal Markov networks, in time exponential to the treewidth of these models.

On the effects of biased quantum random numbers on the initialization of artificial neural networks

1 code implementation30 Aug 2021 Raoul Heese, Moritz Wolter, Sascha Mücke, Lukas Franken, Nico Piatkowski

Recent advances in practical quantum computing have led to a variety of cloud-based quantum computing platforms that allow researchers to evaluate their algorithms on noisy intermediate-scale quantum (NISQ) devices.

Street-Map Based Validation of Semantic Segmentation in Autonomous Driving

no code implementations15 Apr 2021 Laura von Rueden, Tim Wirtz, Fabian Hueger, Jan David Schneider, Nico Piatkowski, Christian Bauckhage

Lastly, we present quantitative results on the Cityscapes dataset indicating that our validation approach can indeed uncover errors in semantic segmentation masks.

Autonomous Driving Position +2

Quantum Circuit Evolution on NISQ Devices

no code implementations23 Dec 2020 Lukas Franken, Bogdan Georgiev, Sascha Mücke, Moritz Wolter, Raoul Heese, Christian Bauckhage, Nico Piatkowski

The results provide intuition on how randomized search heuristics behave on actual quantum hardware and lay out a path for further refinement of evolutionary quantum gate circuits.

Resource-Constrained On-Device Learning by Dynamic Averaging

no code implementations25 Sep 2020 Lukas Heppe, Michael Kamp, Linara Adilova, Danny Heinrich, Nico Piatkowski, Katharina Morik

This paper investigates an approach to communication-efficient on-device learning of integer exponential families that can be executed on low-power processors, is privacy-preserving, and effectively minimizes communication.

BIG-bench Machine Learning Privacy Preserving

LIMITS: Lightweight Machine Learning for IoT Systems with Resource Limitations

no code implementations28 Jan 2020 Benjamin Sliwa, Nico Piatkowski, Christian Wietfeld

Exploiting big data knowledge on small devices will pave the way for building truly cognitive Internet of Things (IoT) systems.

BIG-bench Machine Learning Code Generation

The Trustworthy Pal: Controlling the False Discovery Rate in Boolean Matrix Factorization

no code implementations1 Jul 2019 Sibylle Hess, Nico Piatkowski, Katharina Morik

The Boolean product is a disjunction of rank-1 binary matrices, each describing a feature-relation, called pattern, for a group of samples.

The PRIMPing Routine -- Tiling through Proximal Alternating Linearized Minimization

no code implementations17 Jun 2019 Sibylle Hess, Katharina Morik, Nico Piatkowski

In contrast to existing work, the new algorithm minimizes the description length of the resulting factorization.

Data Compression Model Selection

Boosting Vehicle-to-cloud Communication by Machine Learning-enabled Context Prediction

no code implementations23 Apr 2019 Benjamin Sliwa, Robert Falkenberg, Thomas Liebig, Nico Piatkowski, Christian Wietfeld

The exploitation of vehicles as mobile sensors acts as a catalyst for novel crowdsensing-based applications such as intelligent traffic control and distributed weather forecast.

Networking and Internet Architecture

Machine Learning Based Uplink Transmission Power Prediction for LTE and Upcoming 5G Networks using Passive Downlink Indicators

1 code implementation18 Jun 2018 Robert Falkenberg, Benjamin Sliwa, Nico Piatkowski, Christian Wietfeld

Energy-aware system design is an important optimization task for static and mobile Internet of Things (IoT)-based sensor nodes, especially for highly resource-constrained vehicles such as mobile robotic systems.

Networking and Internet Architecture

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