XML Database Mixed Structural-Textual Classification System

Abstract

One aspect of the present invention is a system for classifying element nodes in a subtree-structured XML database. The XQE structural-textual classification system is sensitive to both the textual resemblance between document elements as well as the structural resemblance between document elements. The XQE structural-textual classification system might use the XQE parent-child index described in Lindblad II-A for the purpose of forming vectors of “terms” which encode both the structural and the textual content of XML elements. The element vectors are processed by a classifier to create class prototype vectors which can be used to classify elements as they are added to the database.

1 . In an XML handling system, wherein XML data sets are stored in structured forms, a method of characterizing an XML dataset comprising: 
 examining the XML dataset to find a match against a first query expression based on a query content sequence; and    examining the XML dataset to find a match against a second query expression based on a query structure sequence.