A Knowledge Integration Method For Militarty Question Answering

The construction of military Q&A system has a good supporting role in assisting military decision-making.Among them,the knowledge of military weapons is the core of the knowledge used in the Q&A system.By using a unified knowledge representation specification to build their own knowledge base for multiple weapon knowledge sources provides a basis for military Q&A based on weapon knowledge.However,the scattered knowledge content and the existence of conflict knowledge among the various knowledge bases reduce the quality of Q&A.In order to improve the quality of Q&A,it is necessary to link various knowledge bases,deal with conflict knowledge,and integrate multiple knowledge bases into a more comprehensive and consistent knowledge base.In order to realize the knowledge integration between weapon knowledge bases,based on the analysis of weapon knowledge representation and weapon knowledge characteristics,this thesis studies the weapon knowledge base integration method with instance matching and conflict processing as the core,and designs and implements a weapon knowledge base integration prototype tool.The main work and contributions of this thesis include:1)The knowledge link between the weapons knowledge base is studied,and an instance matching method for the weapon knowledge base is proposed.This method searches for candidate matching pairs based on the names of instances and their relationships between each other.Because the discriminative information of the weapon instance is rich,easy to use and distinguishable,the matching method uses the discriminative information to determine whether the candidate pair matches.2)The conflict processing of weapon knowledge is studied.On the basis of instance matching,conflict sets are defined to detect conflicts.An interactive conflict processing model combined with quality assessment is designed.3)Based on the above instance matching method and conflict handling model,a weapon knowledge base integration prototype tool is designed and implemented.The tool is modular,configurable and interactive.According to the instance matching method and the conflict processing model proposed in this thesis,experiments are carried out respectively.The results show that the instance matching method can comprehensively find the matching instances between the weapon knowledge bases.The conflict handling model in this thesis can improve the data consistency and quality to some extent.