关键词: Deep Web接口, 文档对象化模型树, 接口块, 多类分类

Abstract: Most getting Deep Web interface method is to get the <form></form> tag in a page , and then judge it’s a Deep Web query interface or not. The interface block concept is proposed. Based on the vision information, the interface position page is located. By extracting appropriate form architectural feature and applying classification algorithm combining C4.5 decision tree and SVM, so as the query interface is found out within the interface block. TEL-8 data sets of UIUC are adopted in the experiments, and the findings indicate that the method reaches the accuracy of 97.30%, and it is of good feasibility and practicability.

Key words: Deep Web interface, Document Object Model（DOM） tree, interface block , multi-class classification