The semi-structured HTML/XML formats are widely used in digital document representation. The content applications use the wrapper scripts to manipulate the document contents. In this paper, we develop a web wrapper service. By simulating the user actions on browsers, the dynamic web operations such as AJAX requests can be automated. Moreover, the proposed system decomposes a wrapper service into smaller components for increasing data sharing among multiple users. VIPS is a technique that can enhance HTML/XML transformation scripts based on the visual display of the web pages rendered in a web browser. By using the VIPS as well as the wrapper decomposition techniques, the reusability and the performance of the wrapper generation system is dramatically enhanced.
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