scholarly journals Knowledge extract and ontology construction method of assembly process text

2022 ◽  
Vol 355 ◽  
pp. 02029
Author(s):  
Yimin Du ◽  
Lingling Shi ◽  
Xiang Zhai ◽  
Hanqing Gong ◽  
Zhijing Zhang

The actual product assembly process mainly relies on manual assembly by workers, and the personal experience of workers is difficult to effectively reuse. Ontology as a knowledge management and expression tool is gradually applied in the field of assembly. However, the manual construction of the ontology is time-consuming and labor-intensive, and the automatic construction of the ontology requires a large number of corpora for training, both of which are difficult to obtain a good assembly case ontology. This paper proposes a method in which automatically extracts relevant knowledge from case assembly process files to generates case database and integrates ontology framework of assembly domain to construct ontology. It shows that the accuracy can be guaranteed on the basis of the rapid construction of case ontology. The feasibility of this method is proved by a practical case.

2014 ◽  
Vol 571-572 ◽  
pp. 969-975
Author(s):  
Zhi Li ◽  
Hong Xia Zou ◽  
Yong Ming Gao

Aiming to realistic requirement to reusability and composability of radar countermeasure test simulation and modeling, the ontology construction method has been proposed by analyzing the influence of ontology in terms of knowledge management and formal description. The design of ontology-based component library and the solutions of composable modeling have been discussed, and the effectiveness has been validated by examples that the methods can satisfy the requirements of model reusability and simulation compos-ability in the field of radar countermeasure test simulation and modeling.


2012 ◽  
Vol 236-237 ◽  
pp. 350-355 ◽  
Author(s):  
Yang Zhou ◽  
Zhao Yang Zeng ◽  
Bin Tian ◽  
Zhi Yu Jia ◽  
Xiao Guo

With consideration of the actual requirement of fault knowledge management in current aviation maintenance, ontology-based knowledge representation method of aircraft fault is studied. Knowledge sources of aircraft fault ontology are analyzed based on ontology modeling primitives. Ontology construction method of aircraft fault knowledge is proposed learning from software engineering and the essence of the existing ontology construction methodology. On the basis of the above study, aircraft fault ontology which is consist of Fault Core sub-ontology, Product domain sub-ontology, Case domain sub-ontology, and Diagnosis domain sub-ontology is build, and it represents aircraft fault knowledge completely and consistently, and also lays the foundation for knowledge management of aircraft fault.


Minerals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 893
Author(s):  
Chi Zhang ◽  
Xiaolin Hou ◽  
Mao Pan ◽  
Zhaoliang Li

Three-dimensional complex fault modeling is an important research topic in three-dimensional geological structure modeling. The automatic construction of complex fault models has research significance and application value for basic geological theories, as well as engineering fields such as geological engineering, resource exploration, and digital mines. Complex fault structures, especially complex fault networks with multilevel branches, still require a large amount of manual participation in the characterization of fault transfer relationships. This paper proposes an automatic construction method for a three-dimensional complex fault model, including the generation and optimization of fault surfaces, automatic determination of the contact relationship between fault surfaces, and recording of the model. This method realizes the automatic construction of a three-dimensional complex fault model, reduces the manual interaction in model construction, improves the automation of fault model construction, and saves manual modeling time.


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