Question And Answer System Of Triticeae Crops Diseases And Insect Pests Based On Knowledge Graph

In our country,sown areas of triticeae crops are wide,and the yields are quite large.Affected by diseases and insect pests,the qualitys and yields of triticeae crops also decreased greatly.For a long time,the knowledge of diseases and insect pests of triticeae crops has been existing in some literature and scattered resource databases.In order to solve this problem,the information related to triticeae crops diseases and insect pests can be acquired quickly and efficiently,the thesis uses the construction of knowledge graph to integrate the diseases and insect pests of triticeae crops domain knowledge,and design a triticeae crops question and answer system based on knowledge graph.This thesis is of great significance to promote the intelligent development of triticeae crops industry.The main research contents and achievements are as follows:(1)Based on the top-down and bottom-up ideas,the conceptual model of triticeae crops disease and insect pest knowledge graph is constructed.In this researsh,bil STM-CRF model is used to construct the data layer of triticeae crops disease and insect pest knowledge graph.(2)Based on knowledge graph,the question and answer method of triticeae crops diseases and insect pests is designed.In this study,word2 vec is used to train word vector to learn semantic relevance of question text,and the naive bayes classification algorithm is used to identify users’ intentions and obtain Three-tuple.Then,the corresponding results of the question are obtained by querying the Neo4 j database.(3)Question and answer system for triticeae crops diseases and insect pests is designed and implemented.The constructed knowledge graph of triticeae crops diseases and insect pests is stored by Neo4 j.Based on that data to design and implement a question and answer system of triticeae crops diseases and insect pests.The system can carry out online question and answer,graph visualization,graph update,and knowledge query for triticeae crops diseases and insect pests,which promotes the intelligent development of triticeae crops industry.