[{"status":"public","user_id":"9557","volume":5,"_id":"64787","quality_controlled":"1","project":[{"_id":"1355","name":"enableATO – Automatisierter Bahnverkehr als Backbone für eine nachhaltige, vernetzte Mobilität im ländlichen Raum"}],"citation":{"apa":"Aimiyekagbon, O. K., Löwen, A., Hanselle, R., Rief, T., Beck, M., &#38; Sextro, W. (2025). Multilevel fault diagnostics for railway applications using limited historical data. <i>PHM Society Asia-Pacific Conference</i>, <i>5</i>, Article 1. <a href=\"https://doi.org/10.36001/phmap.2025.v5i1.4449\">https://doi.org/10.36001/phmap.2025.v5i1.4449</a>","mla":"Aimiyekagbon, Osarenren Kennedy, et al. “Multilevel Fault Diagnostics for Railway Applications Using Limited Historical Data.” <i>PHM Society Asia-Pacific Conference</i>, vol. 5, 1, 2025, doi:<a href=\"https://doi.org/10.36001/phmap.2025.v5i1.4449\">10.36001/phmap.2025.v5i1.4449</a>.","ieee":"O. K. Aimiyekagbon, A. Löwen, R. Hanselle, T. Rief, M. Beck, and W. Sextro, “Multilevel fault diagnostics for railway applications using limited historical data,” in <i>PHM Society Asia-Pacific Conference</i>, 2025, vol. 5, doi: <a href=\"https://doi.org/10.36001/phmap.2025.v5i1.4449\">10.36001/phmap.2025.v5i1.4449</a>.","short":"O.K. Aimiyekagbon, A. Löwen, R. Hanselle, T. Rief, M. Beck, W. Sextro, in: PHM Society Asia-Pacific Conference, 2025.","ama":"Aimiyekagbon OK, Löwen A, Hanselle R, Rief T, Beck M, Sextro W. Multilevel fault diagnostics for railway applications using limited historical data. In: <i>PHM Society Asia-Pacific Conference</i>. Vol 5. ; 2025. doi:<a href=\"https://doi.org/10.36001/phmap.2025.v5i1.4449\">10.36001/phmap.2025.v5i1.4449</a>","chicago":"Aimiyekagbon, Osarenren Kennedy, Alexander Löwen, Raphael Hanselle, Thomas Rief, Maximilian Beck, and Walter Sextro. “Multilevel Fault Diagnostics for Railway Applications Using Limited Historical Data.” In <i>PHM Society Asia-Pacific Conference</i>, Vol. 5, 2025. <a href=\"https://doi.org/10.36001/phmap.2025.v5i1.4449\">https://doi.org/10.36001/phmap.2025.v5i1.4449</a>.","bibtex":"@inproceedings{Aimiyekagbon_Löwen_Hanselle_Rief_Beck_Sextro_2025, title={Multilevel fault diagnostics for railway applications using limited historical data}, volume={5}, DOI={<a href=\"https://doi.org/10.36001/phmap.2025.v5i1.4449\">10.36001/phmap.2025.v5i1.4449</a>}, number={1}, booktitle={PHM Society Asia-Pacific Conference}, author={Aimiyekagbon, Osarenren Kennedy and Löwen, Alexander and Hanselle, Raphael and Rief, Thomas and Beck, Maximilian and Sextro, Walter}, year={2025} }"},"publication_status":"published","date_updated":"2026-02-27T20:46:44Z","intvolume":"         5","year":"2025","title":"Multilevel fault diagnostics for railway applications using limited historical data","author":[{"last_name":"Aimiyekagbon","first_name":"Osarenren Kennedy","full_name":"Aimiyekagbon, Osarenren Kennedy","id":"9557"},{"full_name":"Löwen, Alexander","first_name":"Alexander","last_name":"Löwen","id":"47233"},{"full_name":"Hanselle, Raphael","first_name":"Raphael","last_name":"Hanselle"},{"full_name":"Rief, Thomas","last_name":"Rief","first_name":"Thomas"},{"full_name":"Beck, Maximilian","last_name":"Beck","first_name":"Maximilian"},{"id":"21220","last_name":"Sextro","first_name":"Walter","full_name":"Sextro, Walter"}],"doi":"10.36001/phmap.2025.v5i1.4449","article_number":"1","language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"This study proposes a fault diagnostics methodology that addresses the challenges posed by highly imbalanced datasets typical of railway applications, where faulty conditions constitute the minority class. Fault diagnostics is performed from the component level upward, considering each sensor’s proximity to its respective critical component. Advanced signal analysis, feature engineering, and automated data-driven model generation techniques were explored to achieve comprehensive diagnostics, such that the model development process accounts for variations in the operating conditions and differing levels of information availability. The proposed methodology is evaluated on datasets from the MONOCAB, for scenarios with limited faulty instances and on the Beijing 2024 IEEE PHM Conference data challenge, which focused on fault diagnostics of railway systems under various fault modes and operating conditions."}],"publication":"PHM Society Asia-Pacific Conference","keyword":["MONOCAB","Beijing Data Challenge","Diagnostics of railway systems"],"type":"conference","department":[{"_id":"151"}],"date_created":"2026-02-27T20:41:54Z"},{"language":[{"iso":"eng"}],"article_number":"521","doi":"10.3390/electronics13030521","publication_identifier":{"issn":["2079-9292"]},"author":[{"last_name":"Aimiyekagbon","first_name":"Osarenren Kennedy","full_name":"Aimiyekagbon, Osarenren Kennedy","id":"9557"},{"id":"54290","first_name":"Amelie","last_name":"Bender","full_name":"Bender, Amelie"},{"id":"210","last_name":"Hemsel","first_name":"Tobias","full_name":"Hemsel, Tobias"},{"full_name":"Sextro, Walter","last_name":"Sextro","first_name":"Walter","id":"21220"}],"title":"Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions","year":"2024","article_type":"original","intvolume":"        13","publication_status":"published","date_updated":"2024-03-15T16:15:56Z","date_created":"2024-02-20T06:46:43Z","department":[{"_id":"151"}],"type":"journal_article","keyword":["piezoelectric transducer","self-sensing","fault detection","diagnostics","hairline crack","condition monitoring"],"issue":"3","publication":"Electronics","abstract":[{"text":"In applications of piezoelectric actuators and sensors, the dependability and particularly the reliability throughout their lifetime are vital to manufacturers and end-users and are enabled through condition-monitoring approaches. Existing approaches often utilize impedance measurements over a range of frequencies or velocity measurements and require additional equipment or sensors, such as a laser Doppler vibrometer. Furthermore, the non-negligible effects of varying operating conditions are often unconsidered. To minimize the need for additional sensors while maintaining the dependability of piezoelectric bending actuators irrespective of varying operating conditions, an online diagnostics approach is proposed. To this end, time- and frequency-domain features are extracted from monitored current signals to reflect hairline crack development in bending actuators. For validation of applicability, the presented analysis method was evaluated on piezoelectric bending actuators subjected to accelerated lifetime tests at varying voltage amplitudes and under external damping conditions. In the presence of a crack and due to a diminished stiffness, the resonance frequency decreases and the root-mean-square amplitude of the current signal simultaneously abruptly drops during the lifetime tests. Furthermore, the piezoelectric crack surfaces clapping is reflected in higher harmonics of the current signal. Thus, time-domain features and harmonics of the current signals are sufficient to diagnose hairline cracks in the actuators.","lang":"eng"}],"_id":"51518","funded_apc":"1","publisher":"MDPI AG","volume":13,"user_id":"9557","status":"public","citation":{"mla":"Aimiyekagbon, Osarenren Kennedy, et al. “Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions.” <i>Electronics</i>, vol. 13, no. 3, 521, MDPI AG, 2024, doi:<a href=\"https://doi.org/10.3390/electronics13030521\">10.3390/electronics13030521</a>.","bibtex":"@article{Aimiyekagbon_Bender_Hemsel_Sextro_2024, title={Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions}, volume={13}, DOI={<a href=\"https://doi.org/10.3390/electronics13030521\">10.3390/electronics13030521</a>}, number={3521}, journal={Electronics}, publisher={MDPI AG}, author={Aimiyekagbon, Osarenren Kennedy and Bender, Amelie and Hemsel, Tobias and Sextro, Walter}, year={2024} }","ama":"Aimiyekagbon OK, Bender A, Hemsel T, Sextro W. Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions. <i>Electronics</i>. 2024;13(3). doi:<a href=\"https://doi.org/10.3390/electronics13030521\">10.3390/electronics13030521</a>","ieee":"O. K. Aimiyekagbon, A. Bender, T. Hemsel, and W. Sextro, “Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions,” <i>Electronics</i>, vol. 13, no. 3, Art. no. 521, 2024, doi: <a href=\"https://doi.org/10.3390/electronics13030521\">10.3390/electronics13030521</a>.","apa":"Aimiyekagbon, O. K., Bender, A., Hemsel, T., &#38; Sextro, W. (2024). Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions. <i>Electronics</i>, <i>13</i>(3), Article 521. <a href=\"https://doi.org/10.3390/electronics13030521\">https://doi.org/10.3390/electronics13030521</a>","chicago":"Aimiyekagbon, Osarenren Kennedy, Amelie Bender, Tobias Hemsel, and Walter Sextro. “Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions.” <i>Electronics</i> 13, no. 3 (2024). <a href=\"https://doi.org/10.3390/electronics13030521\">https://doi.org/10.3390/electronics13030521</a>.","short":"O.K. Aimiyekagbon, A. Bender, T. Hemsel, W. Sextro, Electronics 13 (2024)."},"quality_controlled":"1"},{"abstract":[{"text":"This paper presents a comprehensive study on diagnosing a spacecraft propulsion system utilizing data provided by the Prognostics and Health Management (PHM) society, specifically obtained as part of the Asia-Pacific PHM conference’s data challenge 2023. The objective of the challenge is to identify and diagnose known faults as well as unknown anomalies in the spacecraft’s propulsion system, which is critical for ensuring the spacecraft’s proper functionality and safety. To address this challenge, the proposed method follows a systematic approach of feature extraction, feature selection, and model development. The models employed in this study are kMeans clustering and decision trees combined to ensembles, enriched with expert knowledge. With the method presented, our team was capable of reaching high accuracy in identifying anomalies as well as diagnosing faults, resulting in attaining the seventh place with a score of 93.08 %.","lang":"eng"}],"publication":"Proceedings of the Asia Pacific Conference of the PHM Society 2023 ","issue":"1","type":"conference","keyword":["PHM","Fault Diagnostics","Multiple Fault Modes","Expert-Informed Diagnostics","Anomaly Detection"],"department":[{"_id":"151"}],"date_created":"2023-09-18T07:52:32Z","date_updated":"2024-08-19T07:39:12Z","intvolume":"         4","title":"Expert-Informed Hierarchical Diagnostics of Multiple Fault Modes of a Spacecraft Propulsion System","year":"2023","author":[{"full_name":"Aimiyekagbon, Osarenren Kennedy","first_name":"Osarenren Kennedy","last_name":"Aimiyekagbon","id":"9557"},{"full_name":"Löwen, Alexander","last_name":"Löwen","first_name":"Alexander","id":"47233"},{"id":"54290","last_name":"Bender","first_name":"Amelie","full_name":"Bender, Amelie"},{"orcid":"0000-0002-2938-5616","last_name":"Muth","first_name":"Lars","full_name":"Muth, Lars","id":"77313"},{"first_name":"Walter","last_name":"Sextro","full_name":"Sextro, Walter","id":"21220"}],"doi":"10.36001/phmap.2023.v4i1.3596","main_file_link":[{"open_access":"1","url":"https://www.papers.phmsociety.org/index.php/phmap/article/view/3596"}],"language":[{"iso":"eng"}],"quality_controlled":"1","citation":{"bibtex":"@inproceedings{Aimiyekagbon_Löwen_Bender_Muth_Sextro_2023, title={Expert-Informed Hierarchical Diagnostics of Multiple Fault Modes of a Spacecraft Propulsion System}, volume={4}, DOI={<a href=\"https://doi.org/10.36001/phmap.2023.v4i1.3596\">10.36001/phmap.2023.v4i1.3596</a>}, number={1}, booktitle={Proceedings of the Asia Pacific Conference of the PHM Society 2023 }, author={Aimiyekagbon, Osarenren Kennedy and Löwen, Alexander and Bender, Amelie and Muth, Lars and Sextro, Walter}, year={2023} }","short":"O.K. Aimiyekagbon, A. Löwen, A. Bender, L. Muth, W. Sextro, in: Proceedings of the Asia Pacific Conference of the PHM Society 2023 , 2023.","ama":"Aimiyekagbon OK, Löwen A, Bender A, Muth L, Sextro W. Expert-Informed Hierarchical Diagnostics of Multiple Fault Modes of a Spacecraft Propulsion System. In: <i>Proceedings of the Asia Pacific Conference of the PHM Society 2023 </i>. Vol 4. ; 2023. doi:<a href=\"https://doi.org/10.36001/phmap.2023.v4i1.3596\">10.36001/phmap.2023.v4i1.3596</a>","chicago":"Aimiyekagbon, Osarenren Kennedy, Alexander Löwen, Amelie Bender, Lars Muth, and Walter Sextro. “Expert-Informed Hierarchical Diagnostics of Multiple Fault Modes of a Spacecraft Propulsion System.” In <i>Proceedings of the Asia Pacific Conference of the PHM Society 2023 </i>, Vol. 4, 2023. <a href=\"https://doi.org/10.36001/phmap.2023.v4i1.3596\">https://doi.org/10.36001/phmap.2023.v4i1.3596</a>.","ieee":"O. K. Aimiyekagbon, A. Löwen, A. Bender, L. Muth, and W. Sextro, “Expert-Informed Hierarchical Diagnostics of Multiple Fault Modes of a Spacecraft Propulsion System,” in <i>Proceedings of the Asia Pacific Conference of the PHM Society 2023 </i>, 2023, vol. 4, no. 1, doi: <a href=\"https://doi.org/10.36001/phmap.2023.v4i1.3596\">10.36001/phmap.2023.v4i1.3596</a>.","apa":"Aimiyekagbon, O. K., Löwen, A., Bender, A., Muth, L., &#38; Sextro, W. (2023). Expert-Informed Hierarchical Diagnostics of Multiple Fault Modes of a Spacecraft Propulsion System. <i>Proceedings of the Asia Pacific Conference of the PHM Society 2023 </i>, <i>4</i>(1). <a href=\"https://doi.org/10.36001/phmap.2023.v4i1.3596\">https://doi.org/10.36001/phmap.2023.v4i1.3596</a>","mla":"Aimiyekagbon, Osarenren Kennedy, et al. “Expert-Informed Hierarchical Diagnostics of Multiple Fault Modes of a Spacecraft Propulsion System.” <i>Proceedings of the Asia Pacific Conference of the PHM Society 2023 </i>, vol. 4, no. 1, 2023, doi:<a href=\"https://doi.org/10.36001/phmap.2023.v4i1.3596\">10.36001/phmap.2023.v4i1.3596</a>."},"oa":"1","status":"public","user_id":"9557","volume":4,"_id":"47116"},{"publisher":"Elsevier BV","_id":"44672","user_id":"54290","volume":357,"status":"public","oa":"1","citation":{"bibtex":"@article{Bender_2023, title={Model-based condition monitoring of piezoelectric bending actuators}, volume={357}, DOI={<a href=\"https://doi.org/10.1016/j.sna.2023.114399\">10.1016/j.sna.2023.114399</a>}, number={114399}, journal={Sensors and Actuators A: Physical}, publisher={Elsevier BV}, author={Bender, Amelie}, year={2023} }","ama":"Bender A. Model-based condition monitoring of piezoelectric bending actuators. <i>Sensors and Actuators A: Physical</i>. 2023;357. doi:<a href=\"https://doi.org/10.1016/j.sna.2023.114399\">10.1016/j.sna.2023.114399</a>","mla":"Bender, Amelie. “Model-Based Condition Monitoring of Piezoelectric Bending Actuators.” <i>Sensors and Actuators A: Physical</i>, vol. 357, 114399, Elsevier BV, 2023, doi:<a href=\"https://doi.org/10.1016/j.sna.2023.114399\">10.1016/j.sna.2023.114399</a>.","short":"A. Bender, Sensors and Actuators A: Physical 357 (2023).","chicago":"Bender, Amelie. “Model-Based Condition Monitoring of Piezoelectric Bending Actuators.” <i>Sensors and Actuators A: Physical</i> 357 (2023). <a href=\"https://doi.org/10.1016/j.sna.2023.114399\">https://doi.org/10.1016/j.sna.2023.114399</a>.","ieee":"A. Bender, “Model-based condition monitoring of piezoelectric bending actuators,” <i>Sensors and Actuators A: Physical</i>, vol. 357, Art. no. 114399, 2023, doi: <a href=\"https://doi.org/10.1016/j.sna.2023.114399\">10.1016/j.sna.2023.114399</a>.","apa":"Bender, A. (2023). Model-based condition monitoring of piezoelectric bending actuators. <i>Sensors and Actuators A: Physical</i>, <i>357</i>, Article 114399. <a href=\"https://doi.org/10.1016/j.sna.2023.114399\">https://doi.org/10.1016/j.sna.2023.114399</a>"},"quality_controlled":"1","main_file_link":[{"url":"https://authors.elsevier.com/a/1h2WV3IC9dF7Hm","open_access":"1"}],"article_number":"114399","language":[{"iso":"eng"}],"doi":"10.1016/j.sna.2023.114399","title":"Model-based condition monitoring of piezoelectric bending actuators","year":"2023","publication_identifier":{"issn":["0924-4247"]},"author":[{"last_name":"Bender","first_name":"Amelie","full_name":"Bender, Amelie","id":"54290"}],"date_updated":"2023-05-09T09:53:31Z","publication_status":"published","intvolume":"       357","article_type":"original","date_created":"2023-05-09T09:49:44Z","type":"journal_article","keyword":["Condition Monitoring","Model-based approach Diagnostics","Varying conditions","Explainability","Piezoelectric bending actuators"],"department":[{"_id":"151"}],"publication":"Sensors and Actuators A: Physical","abstract":[{"text":"With enhancing digitalization, condition monitoring is used in an increasing number of application fields across various industrial sectors. By its application, increased reliability as well as reduced risks and costs can be achieved. Based on different approaches, technical systems are monitored and measured data is analyzed to enable condition-based or predictive maintenance. To this end, machine learning approaches are usually implemented to diagnose the health states or predict the health index of the monitored system. However, these trained models are often black-box models, not intuitively explainable for a human. To overcome this shortcoming, a model-based approach based on physics is developed for piezoelectric bending actuators. Such a model enables a transparent representation of the system. Moreover, the model-based approach is extended by a parameter-estimation to account for sudden changes in behavior e. g. caused by occurring cracks.","lang":"eng"}]},{"title":"On the applicability of time series features as health indicators for technical systems operating under varying conditions","year":"2021","author":[{"id":"9557","full_name":"Aimiyekagbon, Osarenren Kennedy","last_name":"Aimiyekagbon","first_name":"Osarenren Kennedy"},{"last_name":"Bender","first_name":"Amelie","full_name":"Bender, Amelie","id":"54290"},{"id":"21220","first_name":"Walter","last_name":"Sextro","full_name":"Sextro, Walter"}],"publication_status":"inpress","date_updated":"2023-09-22T08:10:34Z","language":[{"iso":"eng"}],"publication":"Proceedings of the Seventeenth International Conference on Condition Monitoring and Asset Management (CM 2021)","abstract":[{"text":"Several methods, including order analysis, wavelet analysis and empirical mode decomposition have been proposed and successfully employed for the health state estimation of technical systems operating under varying conditions. However, where information such as the speed of rotating machinery, component specifications or other domain-specific information is unavailable, such methods are often infeasible. Thus, this paper investigates the application of classical time-domain features, features from the medical field and novel features from the highly comparative time-series analysis (HCTSA) package, for the health state estimation of rotating machinery operating under varying conditions. Furthermore, several feature selection methods are investigated to identify features as viable health indicators for the diagnostics and prognostics of technical systems. As a case study, the presented methods are evaluated on real-world and experimentally acquired vibration data of bearings operating under varying speed. The results show that the selected features can successfully be employed as health indicators for technical systems operating under varying conditions.","lang":"eng"}],"file":[{"creator":"kennedy","description":"This is a post-print version of the article presented at the Seventeenth International Con-ference on Condition Monitoring and Asset Management (CM 2021). The event websiteis available at:  https://www.bindt.org/events/CM-2021/ and the abstract is available at:https://www.bindt.org/events/CM-2021/abstract-9a7/.","date_created":"2021-06-23T06:43:44Z","date_updated":"2021-06-23T06:50:07Z","relation":"main_file","access_level":"open_access","file_size":1875572,"file_name":"Aimiyekagbon_et_al_2021_On_the_applicability_of_time_series_features_as_health_indicators_postPrint.pdf","title":"On the applicability of time series features as health indicators for technical systems operating under varying conditions","content_type":"application/pdf","file_id":"22508"}],"date_created":"2021-06-23T05:24:39Z","keyword":["Wind turbine diagnostics","bearing diagnostics","non-stationary operating conditions","varying operating conditions","feature extraction","feature selection","fault detection","failure detection"],"type":"conference","department":[{"_id":"151"}],"status":"public","conference":{"end_date":"2021-06-18","start_date":"2021-06-14","name":"Seventeenth International Conference on Condition Monitoring and Asset Management (CM 2021)"},"has_accepted_license":"1","_id":"22507","user_id":"9557","ddc":["620"],"file_date_updated":"2021-06-23T06:50:07Z","citation":{"apa":"Aimiyekagbon, O. K., Bender, A., &#38; Sextro, W. (n.d.). On the applicability of time series features as health indicators for technical systems operating under varying conditions. <i>Proceedings of the Seventeenth International Conference on Condition Monitoring and Asset Management (CM 2021)</i>. Seventeenth International Conference on Condition Monitoring and Asset Management (CM 2021).","ieee":"O. K. Aimiyekagbon, A. Bender, and W. Sextro, “On the applicability of time series features as health indicators for technical systems operating under varying conditions,” presented at the Seventeenth International Conference on Condition Monitoring and Asset Management (CM 2021).","short":"O.K. Aimiyekagbon, A. Bender, W. Sextro, in: Proceedings of the Seventeenth International Conference on Condition Monitoring and Asset Management (CM 2021), n.d.","chicago":"Aimiyekagbon, Osarenren Kennedy, Amelie Bender, and Walter Sextro. “On the Applicability of Time Series Features as Health Indicators for Technical Systems Operating under Varying Conditions.” In <i>Proceedings of the Seventeenth International Conference on Condition Monitoring and Asset Management (CM 2021)</i>, n.d.","mla":"Aimiyekagbon, Osarenren Kennedy, et al. “On the Applicability of Time Series Features as Health Indicators for Technical Systems Operating under Varying Conditions.” <i>Proceedings of the Seventeenth International Conference on Condition Monitoring and Asset Management (CM 2021)</i>.","ama":"Aimiyekagbon OK, Bender A, Sextro W. On the applicability of time series features as health indicators for technical systems operating under varying conditions. In: <i>Proceedings of the Seventeenth International Conference on Condition Monitoring and Asset Management (CM 2021)</i>.","bibtex":"@inproceedings{Aimiyekagbon_Bender_Sextro, title={On the applicability of time series features as health indicators for technical systems operating under varying conditions}, booktitle={Proceedings of the Seventeenth International Conference on Condition Monitoring and Asset Management (CM 2021)}, author={Aimiyekagbon, Osarenren Kennedy and Bender, Amelie and Sextro, Walter} }"},"quality_controlled":"1","oa":"1"},{"doi":"10.36001/phme.2021.v6i1.3042","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1","url":"http://papers.phmsociety.org/index.php/phme/article/download/3042/1812"}],"intvolume":"         6","publication_status":"published","date_updated":"2023-09-22T09:13:01Z","author":[{"last_name":"Aimiyekagbon","first_name":"Osarenren Kennedy","full_name":"Aimiyekagbon, Osarenren Kennedy","id":"9557"},{"id":"77313","first_name":"Lars","last_name":"Muth","orcid":"0000-0002-2938-5616","full_name":"Muth, Lars"},{"full_name":"Wohlleben, Meike Claudia","first_name":"Meike Claudia","orcid":"0009-0009-9767-7168","last_name":"Wohlleben","id":"43991"},{"id":"54290","full_name":"Bender, Amelie","last_name":"Bender","first_name":"Amelie"},{"id":"21220","last_name":"Sextro","first_name":"Walter","full_name":"Sextro, Walter"}],"title":"Rule-based Diagnostics of a Production Line","year":"2021","department":[{"_id":"151"}],"type":"conference","keyword":["PHME 2021","Feature Selection Classification","Feature Selection Clustering","Interpretable Model","Transparent Model","Industry 4.0","Real-World Diagnostics","Quality Control","Predictive Maintenance"],"date_created":"2021-11-03T12:26:39Z","abstract":[{"text":"In the industry 4.0 era, there is a growing need to transform unstructured data acquired by a multitude of sources into information and subsequently into knowledge to improve the quality of manufactured products, to boost production, for predictive maintenance, etc. Data-driven approaches, such as machine learning techniques, are typically employed to model the underlying relationship from data. However, an increase in model accuracy with state-of-the-art methods, such as deep convolutional neural networks, results in less interpretability and transparency. Due to the ease of implementation, interpretation and transparency to both domain experts and non-experts, a rule-based method is proposed in this paper, for prognostics and health management (PHM) and specifically for diagnostics. The proposed method utilizes the most relevant sensor signals acquired via feature extraction and selection techniques and expert knowledge. As a case study, the presented method is evaluated on data from a real-world quality control set-up provided by the European prognostics and health management society (PHME) at the conference’s 2021 data challenge. With the proposed method, our team took the third place, capable of successfully diagnosing different fault modes, irrespective of varying conditions.","lang":"eng"}],"publication":"Proceedings of the European Conference of the PHM Society 2021","issue":"1","volume":6,"editor":[{"last_name":"Do","first_name":"Phuc","full_name":"Do, Phuc"},{"last_name":"King","first_name":"Steve","full_name":"King, Steve"},{"last_name":"Fink","first_name":"Olga","full_name":"Fink, Olga"}],"user_id":"9557","_id":"27111","page":"527-536","conference":{"name":"PHM Society European Conference"},"status":"public","oa":"1","quality_controlled":"1","citation":{"ama":"Aimiyekagbon OK, Muth L, Wohlleben MC, Bender A, Sextro W. Rule-based Diagnostics of a Production Line. In: Do P, King S, Fink O, eds. <i>Proceedings of the European Conference of the PHM Society 2021</i>. Vol 6. ; 2021:527-536. doi:<a href=\"https://doi.org/10.36001/phme.2021.v6i1.3042\">10.36001/phme.2021.v6i1.3042</a>","bibtex":"@inproceedings{Aimiyekagbon_Muth_Wohlleben_Bender_Sextro_2021, title={Rule-based Diagnostics of a Production Line}, volume={6}, DOI={<a href=\"https://doi.org/10.36001/phme.2021.v6i1.3042\">10.36001/phme.2021.v6i1.3042</a>}, number={1}, booktitle={Proceedings of the European Conference of the PHM Society 2021}, author={Aimiyekagbon, Osarenren Kennedy and Muth, Lars and Wohlleben, Meike Claudia and Bender, Amelie and Sextro, Walter}, editor={Do, Phuc and King, Steve and Fink, Olga}, year={2021}, pages={527–536} }","mla":"Aimiyekagbon, Osarenren Kennedy, et al. “Rule-Based Diagnostics of a Production Line.” <i>Proceedings of the European Conference of the PHM Society 2021</i>, edited by Phuc Do et al., vol. 6, no. 1, 2021, pp. 527–36, doi:<a href=\"https://doi.org/10.36001/phme.2021.v6i1.3042\">10.36001/phme.2021.v6i1.3042</a>.","short":"O.K. Aimiyekagbon, L. Muth, M.C. Wohlleben, A. Bender, W. Sextro, in: P. Do, S. King, O. Fink (Eds.), Proceedings of the European Conference of the PHM Society 2021, 2021, pp. 527–536.","chicago":"Aimiyekagbon, Osarenren Kennedy, Lars Muth, Meike Claudia Wohlleben, Amelie Bender, and Walter Sextro. “Rule-Based Diagnostics of a Production Line.” In <i>Proceedings of the European Conference of the PHM Society 2021</i>, edited by Phuc Do, Steve King, and Olga Fink, 6:527–36, 2021. <a href=\"https://doi.org/10.36001/phme.2021.v6i1.3042\">https://doi.org/10.36001/phme.2021.v6i1.3042</a>.","apa":"Aimiyekagbon, O. K., Muth, L., Wohlleben, M. C., Bender, A., &#38; Sextro, W. (2021). Rule-based Diagnostics of a Production Line. In P. Do, S. King, &#38; O. Fink (Eds.), <i>Proceedings of the European Conference of the PHM Society 2021</i> (Vol. 6, Issue 1, pp. 527–536). <a href=\"https://doi.org/10.36001/phme.2021.v6i1.3042\">https://doi.org/10.36001/phme.2021.v6i1.3042</a>","ieee":"O. K. Aimiyekagbon, L. Muth, M. C. Wohlleben, A. Bender, and W. Sextro, “Rule-based Diagnostics of a Production Line,” in <i>Proceedings of the European Conference of the PHM Society 2021</i>, 2021, vol. 6, no. 1, pp. 527–536, doi: <a href=\"https://doi.org/10.36001/phme.2021.v6i1.3042\">10.36001/phme.2021.v6i1.3042</a>."}}]