期刊名称：International Journal of Combinatorial Optimization Problems and Informatics
印刷版ISSN：2007-1558
电子版ISSN：2007-1558
出版年度：2015
卷号：6
期号：2
页码：28-42
语种：English
出版社：International Journal of Combinatorial Optimization Problems and Informatics
其他摘要：Despite the large number of Natural Language Interfaces to Databases (NLIDB) that have been implemented, they do not guarantee to pr ovide a correct response in 100% of the queries. In this paper , we present a way of semantic modelling the elements that integrate the knowledge of a NLIDB with the aim of increasing the number of correctly - answered queries. We design semantic representati ons in order to: a ) model any relational database schema and its relationship with the natural language and b ) add metadata to natural language words to enable our NLIDB to interpret natural language queries that contain superlatives. We configured our NLI DB in a relational database that we migrated from Geobase and used the Geoquery250 corpus to evaluate its performance. We compare its performance with the interfaces ELF, Freya and NLP - Reduce. The results indicate that our proposal allowed our NLIDB to obt ain the best performance.
其他关键词：Natural Language Interface to Databases; Semantic Representation s; Knowledge; Ontology.
