| Citation: | CHEN X P，WANG J F，ZHANG H，et al. Construction and application of knowledge graph in LOX/LH2 engine domain[J]. Journal of Beijing University of Aeronautics and Astronautics，2024，50（3）：821-830 （in Chinese） doi: 10.13700/j.bh.1001-5965.2022.0333
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As a crucial component of the aerospace industry, we construct the domain knowledge graph in the domain of liquid oxygen and liquid hydrogen engines in order to maintain domain knowledge and efficiently enhance the training capacity of scientific research and production talents. According to the characteristics of this domain, three aspects of domain corpus labeling, domain entity recognition, and entity relationship recognition are studied. Based on the research results, the construction of a domain knowledge graph is carried out, and the application mode from three perspectives is sorted out: domain knowledge search, knowledge recommendation, and exploratory analysis. Ultimately, the building methods and application modes are proposed, and the knowledge system in the field of liquid oxygen and liquid hydrogen engines is developed. These materials serve as a guide for the intelligent transformation of the aerospace sector.
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