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随着管理信息系统技术的发展，人们对检索接口的灵活性要求越来越高，本文提出了一种自然语言检索接口的方法，并设计了一个产生式规则索引算法，以提高管理信息系统的检索速度。
With the development of MIS technology, people have higher and higher requirements on the flexibility of searching interfaces. In this paper, a method of natural language retrieval interface is proposed and a production rule indexing algorithm is designed to improve the management information system Retrieve speed.