Legal knowledge graph construction method and related equipment

• Main Authors: ZHANG CHENGHUA, ZHANG YANLI, DUO SIWEI, YU ZIFEI
• Format: Patent
• Language: Chinese; English
• Published: 02.11.2021
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention provides a legal knowledge graph construction method and related equipment, and the method comprises the steps: classifying the legal content of laws and regulations, determining first-level nodes and second-level nodes, and constructing a sub-graph taking the second-level nodes as root nodes based on laws and regulations associated with each second-level node; respectively carrying out aggregation calculation and similarity calculation on the nodes of the sub-atlas, and reconstructing the sub-atlas; constructing an initial legal knowledge graph based on the first-level nodes, the second-level nodes and the reconstructed sub-graphs; obtaining free nodes through entity extraction based on legal knowledge related files; and taking the nodes of the initial legal knowledge graph as first class labels, classifying the free nodes through a pre-trained first multi-class classification model, and associating the free nodes to the corresponding nodes of the initial legal knowledge graph to obtain the leg