Explore projects
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ki-nrw-lab / playground-app
Apache License 2.0Archived 1Updated -
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Jupyter Notebooks für die Summer School Step Forward
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Christian Knecht / value-converters
BSD 3-Clause Clear LicenseUpdated -
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palm_gui / palm4u_gui
GNU Affero General Public License v3.0Updated -
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palm_gui / palm2paraview
GNU Affero General Public License v3.0Updated -
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Werner Kraus / WireX
MIT LicenseThe WireX repo contains the main codebase for the Cable-driven Parallel Robots project. Its core components are WireLib and WireCenter. A number of related libraries, tools, and resources are kept in the same repo.
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ROS2 Security / ROS2 TPM / sros2-tpm
Apache License 2.0Updated -
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csv to netCDF conversion of iSpin data. This will be extended to other sensors since the metadata looks similar
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The accuracy and reliability of vehicle localization on roads are crucial for applications such as self-driving cars, toll systems, and digital tachographs. To achieve accurate positioning, vehicles typically use global navigation satellite system (GNSS) receivers to validate their absolute positions. However, GNSS-based positioning can be compromised by interference signals, necessitating the identification, classification, determination of purpose, and localization of such interference to mitigate or eliminate it. Recent approaches based on machine learning (ML) have shown superior performance in monitoring interference. However, their feasibility in real-world applications and environments has yet to be assessed. Effective implementation of ML techniques requires training datasets that incorporate realistic interference signals, including real-world noise and potential multipath effects that may occur between transmitter, receiver, and satellite in the operational area. Additionally, these datasets require reference labels. Creating such datasets is often challenging due to legal restrictions, as causing interference to GNSS sources is strictly prohibited. Consequently, the performance of ML-based methods in practical applications remains unclear. To address this gap, we describe a series of large-scale measurement campaigns conducted in real-world settings at two highway locations in Germany and the Seetal Alps in Austria, and in large-scale controlled indoor environments. We evaluate the latest supervised ML-based methods to report on their performance in real-world settings and present the applicability of pseudo-labeling for unsupervised learning. We demonstrate the challenges of combining datasets due to data discrepancies and evaluate outlier detection, domain adaptation, and data augmentation techniques to present the models' capabilities to adapt to changes in the datasets.
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The accuracy of global navigation satellite system (GNSS) receivers is significantly compromised by interference from jamming devices. Consequently, the detection of these jammers are crucial to mitigating such interference signals. However, robust classification of interference using machine learning (ML) models is challenging due to the lack of labeled data in real-world environments. In this paper, we propose an ML approach that achieves high generalization in classifying interference through orchestrated monitoring stations deployed along highways. We present a semi-supervised approach coupled with an uncertainty-based voting mechanism by combining Monte Carlo and Deep Ensembles that effectively minimizes the requirement for labeled training samples to less than 5% of the dataset while improving adaptability across varying environments. Our method demonstrates strong performance when adapted from indoor environments to real-world scenarios.
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Create a dataset to train a lane detection neural network with CARLA
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