Search engines such as Google and MSN Search crawl and index files in Adobe’s Portable Document Format (PDF) alongside material in HTML. Google furthermore offers a View as HTML option for PDF that includes query term highlighting. The visual appearance of these HTML files converted from PDF is very poor. In this paper we claim that significant improvements to the quality of on-demand PDF to HT...

We present a new approach that automatically captures the semantic hierarchies in HTML tables, and semi-automatically integrates HTML tables belonging to a domain. It first automatically captures the attribute-value pairs in HTML tables by normalization and recognizing their headings. After generating global schema manually, it learns the lexical semantic sets and contexts, by which it then eli...

DOW is an extended World Wide Web interface for database systems. In addition to WWW browsing and navigation, DOW supports HTML document management as well-structured data objects in an ODBMS. We can access stored objects and adapted HTML documents using SQL, keywords, and schema browser. DOW has four main features. First, to manage HTML documents within a database, we introduced an HTML adapte...