To Solve the “Last Kilometer” Problem in Aerospace Unit Knowledge Engineering Based on Intelligent Search Engine

In order to solve the problem that all kinds of knowledge data of the aerospace unit are scattered in different business systems, improve the accuracy and intelligence of information retrieval as well as reduce the cost of repeated construction of search module in different systems, the paper puts forward a knowledge acquisition method based on intelligent search engine. In terms of the intelligent search engine, it realizes the multi-source management of the common knowledge through integrating with a plurality of business systems, which helps to provide a unified retrieval channel for users; Convenient acquisition and use of knowledge in various scenarios is achieved, such as writing documents and consulting documents, by building web search service and developing functions of input client including instant input search and word-drag search; by introducing a semantic understanding model, designing an intelligent user query sentence understanding/recall/sorting algorithm, supporting search strategy adjustment and optimization based on user feedback and improving the recall rate and the precision of the search task on the domain data, the problem of “last kilometer” knowledge acquisition and utilization can be solved.