Our work shares a base with the wrapper induction literature (Kushmerick, 1997) in that it leverages regularities of web page structures.
wrapper induction usually focuses on a small set of web domains, where the web pages in each domain follow a fixed template (Muslea et al., 2001;Crescenzi et al., 2001;Cohen et al., 2002;Arasu and Garcia-Molina, 2003).