Mapping knowledge domain questioning and answering system and method based on template matching technique

Abstract

The invention discloses a mapping knowledge domain questioning and answering system and method based on a template matching technique. The system comprises an offline module and an online module, wherein the offline module is mainly used for offline data preparation, and the online module is mainly used for system service. The system can support a friendly natural language question of a user to serve as a query, grammatical analysis is conducted on the question of the user, an offline-defined manual template library is searched for a matched question template according to a result obtained through grammatical analysis, a final structurized mapping knowledge domain query statement is generated according to an entity matching method and a relation matching method, retrieving is conducted in a mapping knowledge domain according to the structurized query statement, and then a final result is returned. According to the mapping knowledge domain questioning and answering system and method based on the template matching technique, the precise retrieving result can be given for the question of the user, and the searching satisfaction degree of the user is improved.

Description

technical field [0001] The present invention relates to a knowledge graph question answering system and method, in particular to a knowledge graph question answering system and method based on template matching technology. Background technique [0002] With the explosive growth of information on the Internet, people's demand for information retrieval is increasing. How to quickly, accurately, and reliably search for the information that users need from a large amount of information with diverse modes has become a hot topic that needs to be solved urgently. The original Internet only had static web pages for people to browse, and the things people could do on the Internet were also very limited. With the rapid development of the Internet, the Internet has become more and more popular, the content has become more and more abundant, and the modes have become more and more diverse. How to obtain the information required by users from these vast Internet information has become ...

AI Technical Summary

Problems solved by technology

For example, if a user queries "the university with the longest history in China?", traditional search engines often cannot help you get the answers you want, or cannot explicitly provide accurate answers to questions, but search engines based on knowledge graphs can help. you solve the problem

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