Knowledge Annotation Platform-based Knowledge Graph Construction and Application for Water Conservancy Hub Projects
The generation of a significant volume of heterogeneous data in water resources has facilitated the creation and utiliza-tion of domain knowledge graphs,but it has led to discrepancies in the construction processes of these graphs.To address the complexities involved in building water resources knowledge graphs,an efficient approach based on a knowledge annotation plat-form is proposed.Taking the intelligent application of knowledge in Xiaolangdi Water Conservancy Hub project as an example,using the engineering data of the hub,the proposed method is applied to construct a water conservancy hub project knowledge graph(WCHP-KG)in the field of water conservancy.Firstly,focusing on the Xiaolangdi Water Conservancy Hub project,a con-struction for conceptual classification and relationship description is established based on industry terminology and existing voca-bularies,forming the pattern layer of WCHP-KG.Through BiLSTM-CRF and sequence labeling models,under the guidance of water conservancy experts,a knowledge annotation platform is used to semi-automatically annotate and manually proofread un-structured texts,achieving knowledge fusion and constructing the data layer of WCHP-KG.Results indicate that WCHP-KG co-vers 43 water conservancy entities and 110 entity relationships.Through practical validation,the proposed WCHP-KG provides a solid structured knowledge base for applications related to the Xiaolangdi Water Conservancy Hub project,and provides a reliable reference for engineering decision-making and management,validating the efficacy of the proposed construction method.In the fu-ture,WCHP-KG will be further expanded and the construction process will be improved to meet the needs of more application scenarios and fields.