BIM knowledge graph construction method and system based on label confusion learning

The invention discloses a BIM knowledge graph construction method and system based on label confusion learning, and the method comprises the steps: obtaining an original BIM data set, carrying out the preprocessing of the original BIM data set, inputting target BIM data into a BiLSTM-CRF model, carrying out the entity recognition, obtaining the entity information in the target BIM data, inputting the entity information and the target BIM data into MutiLCM-RE, and obtaining a BIM knowledge graph. According to the technical scheme, the relation between entities is recognized, relation triple information is extracted, a target BIM knowledge graph is established according to the relation triple information, and through means of high-quality entity recognition and relation extraction, optimization of a label confusion learning strategy, application of a multi-source semantic fusion method, semi-supervised learning of incremental element self-training and the like, the target BIM knowledge graph is established. The