Knowledge Element Logical Relation Extraction Method
The extraction of knowledge element logical relation focuses on the syntactic structure and syntactic features of the context and realizes context-scoped relation extraction by defining trigger word rules through contextual functional se-mantic dependencies.To eliminate the structural limitation of context,this study proposes a new method for the extraction of knowledge element logical relation.First,based on the domain literature,the knowledge element collection is construct-ed through knowledge element extraction.Second,based on the domain knowledge characteristics,a knowledge element attribute description framework is constructed to provide an all-round and fine-grained unified description of knowledge el-ements,and the knowledge element attribute collection is constructed based on knowledge element attribute extraction.Fi-nally,the logical relation types are defined in accordance with the actual needs.Through logical relation instance analysis and attribute comparative relation analysis,the logical relation rule base is constructed via characterization and summariza-tion.This is done by taking the basic relations,such as co-occurrence,inclusion,and correlation of attribute values,as clues,and the logical relation extraction is realized through rule matching.Considering the South China Sea rights protec-tion evidence knowledge element,some evidence from different text sources are selected,and the types of logical relations between evidence and their extraction rules are defined.Based on the extraction of knowledge elements and their attri-butes,the logical relation extraction between the South China Sea rights protection evidence of juxtaposition,succession,rebuttal,and reinforcement is realized based on rule matching,and the logical relation mapping of the South China Sea rights protection evidence is constructed.The feasibility of the proposed method is empirically verified,which can provide new ideas for research on the logical relation extraction of knowledge elements.
knowledge elementlogical relationrelation extractionthe South China Sea rights protectionevidence knowledge element
万方数据
维普
