Integration of Query Interfaces for Deep Web Databases

On the deep Web, a significant amount of information can only be accessed through query interfaces, so an important step is the integration of these interfaces. In this paper, we aim to construct automatically a query interface that integrates a set of interfaces in the same domain and permit users to access information uniformly from multiple sources. The integration of query interfaces can be divided into two steps: interface matching and interface integration. During the process of interface matching, we use domain ontology conception mapping technology to discovery the semantic correspondences among the attributes in Web interfaces and adopt a clustering-based approach as query interface matching techniques. Once a set of query interfaces is matched, we can automatically construct a well-designed query interface that contains all the distinct attributes of sources interfaces. Extensive experiments are conducted and results show that our approach is highly effective.