Research on Natural Language Query Rewriting for Ontology-Based Knowledge Base

To allow ordinary users to utilize ontology-based knowledge base (KB) to solve the problem,upgrade the flexibility of ontology-based KB search and improve the queries’ efficiency. Combined with the inherent characteristics of ontology-based KB,given the query system framework and handling processes,and describe critical techniques and algorithms in systems. Proposed the expansion of the ontology vocabulary based on WordNet and query triples mapping algorithm. Verify the effectiveness of the method through experiments in this paper.