Search Results for author: Ralf Mikut

Found 37 papers, 13 papers with code

MLOps for Scarce Image Data: A Use Case in Microscopic Image Analysis

1 code implementation27 Sep 2023 Angelo Yamachui Sitcheu, Nils Friederich, Simon Baeuerle, Oliver Neumann, Markus Reischl, Ralf Mikut

The operationalization of ML models is governed by a set of concepts and methods referred to as Machine Learning Operations (MLOps).

Context-Aware Composition of Agent Policies by Markov Decision Process Entity Embeddings and Agent Ensembles

1 code implementation28 Aug 2023 Nicole Merkle, Ralf Mikut

Since the environments can be stochastic and complex in terms of the number of states and feasible actions, activities are usually modelled in a simplified way by Markov decision processes so that, e. g., agents with reinforcement learning are able to learn policies, that help to capture the context and act accordingly to optimally perform activities.

Entity Embeddings Knowledge Graphs +1

Transformer Training Strategies for Forecasting Multiple Load Time Series

1 code implementation19 Jun 2023 Matthias Hertel, Maximilian Beichter, Benedikt Heidrich, Oliver Neumann, Benjamin Schäfer, Ralf Mikut, Veit Hagenmeyer

We evaluate whether a Transformer load forecasting model benefits from a transfer learning strategy, where a global univariate model is trained on the load time series from multiple clients.

Load Forecasting Time Series +1

CoNIC Challenge: Pushing the Frontiers of Nuclear Detection, Segmentation, Classification and Counting

1 code implementation11 Mar 2023 Simon Graham, Quoc Dang Vu, Mostafa Jahanifar, Martin Weigert, Uwe Schmidt, Wenhua Zhang, Jun Zhang, Sen yang, Jinxi Xiang, Xiyue Wang, Josef Lorenz Rumberger, Elias Baumann, Peter Hirsch, Lihao Liu, Chenyang Hong, Angelica I. Aviles-Rivero, Ayushi Jain, Heeyoung Ahn, Yiyu Hong, Hussam Azzuni, Min Xu, Mohammad Yaqub, Marie-Claire Blache, Benoît Piégu, Bertrand Vernay, Tim Scherr, Moritz Böhland, Katharina Löffler, Jiachen Li, Weiqin Ying, Chixin Wang, Dagmar Kainmueller, Carola-Bibiane Schönlieb, Shuolin Liu, Dhairya Talsania, Yughender Meda, Prakash Mishra, Muhammad Ridzuan, Oliver Neumann, Marcel P. Schilling, Markus Reischl, Ralf Mikut, Banban Huang, Hsiang-Chin Chien, Ching-Ping Wang, Chia-Yen Lee, Hong-Kun Lin, Zaiyi Liu, Xipeng Pan, Chu Han, Jijun Cheng, Muhammad Dawood, Srijay Deshpande, Raja Muhammad Saad Bashir, Adam Shephard, Pedro Costa, João D. Nunes, Aurélio Campilho, Jaime S. Cardoso, Hrishikesh P S, Densen Puthussery, Devika R G, Jiji C V, Ye Zhang, Zijie Fang, Zhifan Lin, Yongbing Zhang, Chunhui Lin, Liukun Zhang, Lijian Mao, Min Wu, Vi Thi-Tuong Vo, Soo-Hyung Kim, Taebum Lee, Satoshi Kondo, Satoshi Kasai, Pranay Dumbhare, Vedant Phuse, Yash Dubey, Ankush Jamthikar, Trinh Thi Le Vuong, Jin Tae Kwak, Dorsa Ziaei, Hyun Jung, Tianyi Miao, David Snead, Shan E Ahmed Raza, Fayyaz Minhas, Nasir M. Rajpoot

Nuclear detection, segmentation and morphometric profiling are essential in helping us further understand the relationship between histology and patient outcome.

Nuclear Segmentation Segmentation +2

ProbPNN: Enhancing Deep Probabilistic Forecasting with Statistical Information

no code implementations6 Feb 2023 Benedikt Heidrich, Kaleb Phipps, Oliver Neumann, Marian Turowski, Ralf Mikut, Veit Hagenmeyer

Therefore, in the present paper, we introduce a deep learning-based method that considers these calendar-driven periodicities explicitly.

Time Series Time Series Analysis

Creating Probabilistic Forecasts from Arbitrary Deterministic Forecasts using Conditional Invertible Neural Networks

no code implementations3 Feb 2023 Kaleb Phipps, Benedikt Heidrich, Marian Turowski, Moritz Wittig, Ralf Mikut, Veit Hagenmeyer

More specifically, we apply a cINN to learn the underlying distribution of the data and then combine the uncertainty from this distribution with an arbitrary deterministic forecast to generate accurate probabilistic forecasts.

AutoPV: Automated photovoltaic forecasts with limited information using an ensemble of pre-trained models

no code implementations13 Dec 2022 Stefan Meisenbacher, Benedikt Heidrich, Tim Martin, Ralf Mikut, Veit Hagenmeyer

To tackle the problem of missing information about the PV mounting configuration, we use new data that become available during operation to adapt the ensemble weights to minimize the forecasting error.

EasyMLServe: Easy Deployment of REST Machine Learning Services

1 code implementation26 Nov 2022 Oliver Neumann, Marcel Schilling, Markus Reischl, Ralf Mikut

We contribute an EasyMLServe software framework to deploy machine learning services in the cloud using REST interfaces and generic local or web-based GUIs.

Instance Segmentation Semantic Segmentation +2

Predicting the power grid frequency of European islands

no code implementations27 Sep 2022 Thorbjørn Lund Onsaker, Heidi S. Nygård, Damià Gomila, Pere Colet, Ralf Mikut, Richard Jumar, Heiko Maass, Uwe Kühnapfel, Veit Hagenmeyer, Benjamin Schäfer

In the present paper, we utilize measurements of the power grid frequency obtained in European islands: the Faroe Islands, Ireland, the Balearic Islands and Iceland and investigate how their frequency can be predicted, compared to the Nordic power system, acting as a reference.

Rapid Flow Behavior Modeling of Thermal Interface Materials Using Deep Neural Networks

no code implementations8 Aug 2022 Simon Baeuerle, Marius Gebhardt, Jonas Barth, Andreas Steimer, Ralf Mikut

For more complex geometries, Computational Fluid Dynamics (CFD) simulations are used in combination with manual experiments.

Management

Review of automated time series forecasting pipelines

no code implementations3 Feb 2022 Stefan Meisenbacher, Marian Turowski, Kaleb Phipps, Martin Rätz, Dirk Müller, Veit Hagenmeyer, Ralf Mikut

We conclude that future research has to holistically consider the automation of the forecasting pipeline to enable the large-scale application of time series forecasting.

Feature Engineering Hyperparameter Optimization +2

Domain-Invariant Representation Learning from EEG with Private Encoders

1 code implementation27 Jan 2022 David Bethge, Philipp Hallgarten, Tobias Grosse-Puppendahl, Mohamed Kari, Ralf Mikut, Albrecht Schmidt, Ozan Özdenizci

Deep learning based electroencephalography (EEG) signal processing methods are known to suffer from poor test-time generalization due to the changes in data distribution.

EEG Emotion Classification +2

Smart Data Representations: Impact on the Accuracy of Deep Neural Networks

1 code implementation17 Nov 2021 Oliver Neumann, Nicole Ludwig, Marian Turowski, Benedikt Heidrich, Veit Hagenmeyer, Ralf Mikut

In the present paper, we analyze the impact of data representations on the performance of Deep Neural Networks using energy time series forecasting.

Time Series Time Series Forecasting

Concepts for Automated Machine Learning in Smart Grid Applications

no code implementations26 Oct 2021 Stefan Meisenbacher, Janik Pinter, Tim Martin, Veit Hagenmeyer, Ralf Mikut

Forecasts are elementary for sector coupling, where energy-consuming sectors are interconnected with the power-generating sector to address electricity storage challenges by adding flexibility to the power system.

Autonomous Vehicles BIG-bench Machine Learning +2

Data-Driven Copy-Paste Imputation for Energy Time Series

1 code implementation5 Jan 2021 Moritz Weber, Marian Turowski, Hüseyin K. Çakmak, Ralf Mikut, Uwe Kühnapfel, Veit Hagenmeyer

The CPI method copies data blocks with similar properties and pastes them into gaps of the time series while preserving the total energy of each gap.

Fault Detection Imputation +5

CAD2Real: Deep learning with domain randomization of CAD data for 3D pose estimation of electronic control unit housings

no code implementations25 Sep 2020 Simon Baeuerle, Jonas Barth, Elton Renato Tavares de Menezes, Andreas Steimer, Ralf Mikut

Electronic control units (ECUs) are essential for many automobile components, e. g. engine, anti-lock braking system (ABS), steering and airbags.

3D Pose Estimation

Integrating Battery Aging in the Optimization for Bidirectional Charging of Electric Vehicles

no code implementations23 Sep 2020 Karl Schwenk, Stefan Meisenbacher, Benjamin Briegel, Tim Harr, Veit Hagenmeyer, Ralf Mikut

Smart charging of Electric Vehicles (EVs) reduces operating costs, allows more sustainable battery usage, and promotes the rise of electric mobility.

Semi-Automatic Generation of Tight Binary Masks and Non-Convex Isosurfaces for Quantitative Analysis of 3D Biological Samples

1 code implementation30 Jan 2020 Sourabh Bhide, Ralf Mikut, Maria Leptin, Johannes Stegmaier

Current in vivo microscopy allows us detailed spatiotemporal imaging (3D+t) of complete organisms and offers insights into their development on the cellular level.

Cell Segmentation Segmentation

The MATLAB Toolbox SciXMiner: User's Manual and Programmer's Guide

no code implementations11 Apr 2017 Ralf Mikut, Andreas Bartschat, Wolfgang Doneit, Jorge Ángel González Ordiano, Benjamin Schott, Johannes Stegmaier, Simon Waczowicz, Markus Reischl

The decision to a Matlab-based solution was made to use the wide mathematical functionality of this package provided by The Mathworks Inc. SciXMiner is controlled by a graphical user interface (GUI) with menu items and control elements like popup lists, checkboxes and edit elements.

Time Series Analysis

Datenqualität in Regressionsproblemen

no code implementations16 Jan 2017 Wolfgang Doneit, Ralf Mikut, Markus Reischl

Further, the distribution of input data influences the reliability of regression models.

regression

Fuzzy-based Propagation of Prior Knowledge to Improve Large-Scale Image Analysis Pipelines

no code implementations3 Aug 2016 Johannes Stegmaier, Ralf Mikut

The general concept introduced in this contribution represents a new approach to efficiently exploit prior knowledge to improve the result quality of image analysis pipelines.

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