Construction of deep web information retrieval system in e-commerce field

With the increasing number of e-commerce sites, how to get a quick search about the information you want from thousands of e-commerce networks is becoming an urgent problem. In this paper, we present a solution to this problem, first, domain knowledge is established according to the e-commerce field, then we build a deep web information retrieval system based on e-commerce to help users find the goods they want quickly from different e-commerce sites, this system is established by deep web interface extraction, interface integration and interface AutoFill technology.