Automate discovery of deep web interfaces

With the rapid increase of web sources, more and more deep web databases become available. The information in these databases can only be accessed by submitting queries to back-end databases. However, the traditional search engine interfaces resemble extremely deep web interfaces. Therefore, it is difficult to distinguish them and to find deep web interfaces. This paper proposes a novel method of discovering deep web interfaces. We introduce a page division method to divide pages into separate parts. After that we remove the parts which don´t contain search interfaces. At last we construct topic-specific queries to obtain results and distinguish deep web interfaces by analyzing the results. Experiment result shows that this method is effective and stable.