Synthesizing union tables from the web

Several recent works have focused on harvesting HTML tables from the Web and recovering their semantics [Cafarella et al., 2008a; Elmeleegy et al., 2009; Limaye et al., 2010; Venetis et al., 2011]. As a result, hundreds of millions of high quality structured data tables can now be explored by the users. In this paper, we argue that those ...More