Selection and extraction of information from structured documents

摘要

A method of selecting and extracting a portion of a structured document, comprising the steps of:
detecting an end node of the tree structure that corresponds to a position indicated by a user on a screen that displays the structured document;
prompting the user to select a node from a series of nodes that are obtained by successively detecting next higher nodes from the end node; and
selecting and extracting a portion of the structured document that corresponds to the node selected by the user.