Research and Design of Vertical Search Engine Technology for National Defense Education Curriculum Resources

Nowadays, the importance of national the importance defenses education courses is increasingly prominent, and using ordinary search engines for searching can no longer meet user needs. This article proposes a vertical search engine in the field of national defense education based on Elasticsearch. This article first introduces the research status of vertical search engines at home and abroad, then elaborates on the framework hierarchy of vertical search engines. Then, it introduces the crawling framework and crawling steps of the web crawler module, the workflow of the index module, and then introduces the Chinese word segmentation technology and sorting algorithm required by vertical search engines. Finally, data analysis is conducted.