Information Extraction from Tree Documents by Learning Subtree Delimiters.
Boris Chidlovskii · 2003
Information extraction from HTML pages has been conventionally treated as plain text documents extended with HTML tags. However, the growing maturity and correct usage of HTML/XHTML formats open an opportunity to treat Web pages as trees, to mine the rich structural context in the trees and to learn accurate extraction rules. In this paper, we generalize the notion of delimiter developed for the string information extraction to tree documents.