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At present, there are few studies on knowledge graph completion in the equipment field, and the attribute and relationship samples in the equipment knowledge graph are prone to uneven distribution, while the traditional knowledge graph completion method is difficult to solve the problem of uneven distribution of attribute and relationship samples. Therefore, this paper proposes an internal instance type completion method of equipment knowledge graph based on EP2TP-TRT. First, the TransE model is used to embed the relationship and attributes of the equipment instance, respectively. Then, the EP2TP model is used to map the instance attributes, and the TRT model is used to map the type relationship. Finally, the scores of the EP2TP and TRT models are integrated by designing different weights, and the training prediction is carried out to enhance the representation ability of instance information and type information. Compared with the mainstream advanced models, this method improves the MRR and HITS @ 1 indicators by about 0.89% and 2.1%, respectively. <\/jats:p>","DOI":"10.1142\/s1793962324500351","type":"journal-article","created":{"date-parts":[[2024,6,17]],"date-time":"2024-06-17T13:48:27Z","timestamp":1718632107000},"source":"Crossref","is-referenced-by-count":0,"title":["Instance type completion in equipment knowledge graph based on translation model"],"prefix":"10.1142","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3090-1104","authenticated-orcid":false,"given":"Lin","family":"Miao","sequence":"first","affiliation":[{"name":"Computer School, Beijing Information Science and Technology University, Beijing 100101, P. R. 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