Construction of Knowledge Graph for Marine Diesel Engine Faults Based on Deep Learning Methods

As the core equipment in ship power systems, the accurate and real-time diagnosis of ship diesel engine faults directly affects navigation safety and operation efficiency. Existing methods (e.g., expert systems, traditional machine learning) can hardly cope with the complex failure modes and dynamic...

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Main Authors: Xiaohe Tian, Huibing Gan, Yanlin Liu
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Journal of Marine Science and Engineering
Subjects:
Online Access:https://www.mdpi.com/2077-1312/13/4/693
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author Xiaohe Tian
Huibing Gan
Yanlin Liu
author_facet Xiaohe Tian
Huibing Gan
Yanlin Liu
author_sort Xiaohe Tian
collection DOAJ
description As the core equipment in ship power systems, the accurate and real-time diagnosis of ship diesel engine faults directly affects navigation safety and operation efficiency. Existing methods (e.g., expert systems, traditional machine learning) can hardly cope with the complex failure modes and dynamic operation environment due to the problems of relying on artificial features and insufficient generalization ability. In this paper, we propose a BiLSTM-CRF-based knowledge graph construction method for ship diesel engine faults, aiming at integrating multi-source heterogeneous data through deep learning and knowledge graph technology, and mining the deep semantic associations among fault phenomena, causes, and solutions. The research framework covers data acquisition, ontology modeling, and knowledge extraction and storage, and the BiLSTM-CRF model is used to fuse bi-directional contextual features with label transfer probability to achieve high-precision entity recognition and relationship extraction. Finally, a scalable knowledge graph is constructed by Neo4j. Experiments show that the model significantly outperforms baseline methods such as HMM, CRF, and BiLSTM, and the graph visualization clearly presents the fault causality network, which supports knowledge reasoning and decision optimization. For example, “high exhaust temperature” can be related to potential causes such as “turbine failure” and “poor cooling”, and recommended measures can be taken. This method not only improves fault diagnosis accuracy and efficiency but also provides a novel method for intelligent ship health management.
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spelling doaj-art-51235f7f02e04d968e2bd84332d77a8a2025-08-20T02:28:31ZengMDPI AGJournal of Marine Science and Engineering2077-13122025-03-0113469310.3390/jmse13040693Construction of Knowledge Graph for Marine Diesel Engine Faults Based on Deep Learning MethodsXiaohe Tian0Huibing Gan1Yanlin Liu2Marine Engineering College, Dalian Maritime University, Dalian 116026, ChinaMarine Engineering College, Dalian Maritime University, Dalian 116026, ChinaMarine Engineering College, Dalian Maritime University, Dalian 116026, ChinaAs the core equipment in ship power systems, the accurate and real-time diagnosis of ship diesel engine faults directly affects navigation safety and operation efficiency. Existing methods (e.g., expert systems, traditional machine learning) can hardly cope with the complex failure modes and dynamic operation environment due to the problems of relying on artificial features and insufficient generalization ability. In this paper, we propose a BiLSTM-CRF-based knowledge graph construction method for ship diesel engine faults, aiming at integrating multi-source heterogeneous data through deep learning and knowledge graph technology, and mining the deep semantic associations among fault phenomena, causes, and solutions. The research framework covers data acquisition, ontology modeling, and knowledge extraction and storage, and the BiLSTM-CRF model is used to fuse bi-directional contextual features with label transfer probability to achieve high-precision entity recognition and relationship extraction. Finally, a scalable knowledge graph is constructed by Neo4j. Experiments show that the model significantly outperforms baseline methods such as HMM, CRF, and BiLSTM, and the graph visualization clearly presents the fault causality network, which supports knowledge reasoning and decision optimization. For example, “high exhaust temperature” can be related to potential causes such as “turbine failure” and “poor cooling”, and recommended measures can be taken. This method not only improves fault diagnosis accuracy and efficiency but also provides a novel method for intelligent ship health management.https://www.mdpi.com/2077-1312/13/4/693marine diesel enginefault diagnosisknowledge graphBiLSTM-CRF modeldeep learning
spellingShingle Xiaohe Tian
Huibing Gan
Yanlin Liu
Construction of Knowledge Graph for Marine Diesel Engine Faults Based on Deep Learning Methods
Journal of Marine Science and Engineering
marine diesel engine
fault diagnosis
knowledge graph
BiLSTM-CRF model
deep learning
title Construction of Knowledge Graph for Marine Diesel Engine Faults Based on Deep Learning Methods
title_full Construction of Knowledge Graph for Marine Diesel Engine Faults Based on Deep Learning Methods
title_fullStr Construction of Knowledge Graph for Marine Diesel Engine Faults Based on Deep Learning Methods
title_full_unstemmed Construction of Knowledge Graph for Marine Diesel Engine Faults Based on Deep Learning Methods
title_short Construction of Knowledge Graph for Marine Diesel Engine Faults Based on Deep Learning Methods
title_sort construction of knowledge graph for marine diesel engine faults based on deep learning methods
topic marine diesel engine
fault diagnosis
knowledge graph
BiLSTM-CRF model
deep learning
url https://www.mdpi.com/2077-1312/13/4/693
work_keys_str_mv AT xiaohetian constructionofknowledgegraphformarinedieselenginefaultsbasedondeeplearningmethods
AT huibinggan constructionofknowledgegraphformarinedieselenginefaultsbasedondeeplearningmethods
AT yanlinliu constructionofknowledgegraphformarinedieselenginefaultsbasedondeeplearningmethods