深层网查询接口的自动集成

深层网数据库的访问方式主要是通过查询接口,所以查询接口是外部访问深层网数据库的门户.为了能够同时访问同一领域多个Web数据库,需要对多个Web数据库的查询接口进行集成.因此,提出基于本体的深层网查询接口集成方法.首先构建领域核心本体,在模式匹配过程中,不断完善核心本体;然后,以本体作为媒介,在不同查询接口模式间建立属性映射关系,发现属性间的语义关联;最后,根据本体概念出现的频数生成集成接口.实验表明提出的深层网查询接口自动集成方法是可行的和高效的.

Automatic Integration of Deep Web Query Interfaces

Query interface is used to formulate queries to receive needed data from deep Web databases,so query interface is the door to access deep Web.In order to access domain-specific databases,one of the most important steps is to construct an integrated query interface that allows uniform access to disparate relevant sources.Therefore,a novel method of integrating query interface is proposed based on ontology in deep Web.Firstly,a core ontology is constructed and the semantics of concepts in the core ontology can be enriched during schema matching.Then,the ontology is used as a medium to find the semantic relationships between attributes from different query interfaces.Lastly,global integration interface is generated according to the frequency of concepts in the ontology.Experimental result shows that this method of automatic integration of deep Web query interface is feasible and effective.