Research on the Integration of Deep Web Query Interfaces

This paper focuses on the research on how to determine the attribute layout in integrated query interfaces. Our algorithm is low in time complexity and easily expandable. In this paper, the structure of query interfaces are modelled into a tree before an integrated query interface tree is built by mining frequent pattern sub-tree so that it can satisfy structural constraints and sequence constraints between attributes to the maximum. Experiment results which integrate query interfaces of eight domains have proved that the algorithm proposed in this paper is effective.