Patent ID: 6393427
Filing Date: 2002-05-21
Classification: G06F,Y10S

Abstract:
A method for providing a navigation tree, comprising:providing a maintenance method including a method for merging a parent internal node and leaf nodes, and a method for splitting a parent internal node, wherein each leaf node representing a document in said navigation tree and each internal node being associated with a label representing a category of classification of internal nodes and leaf nodes associated with said internal node, and where said method of merging and said method of splitting include comparison to user determined parameters; providing a document insertion method, wherein said insertion method inserts a document into said navigation tree according to a classification obtained from an external classifier using keywords in said document; and providing a document deletion method for deleting a document from said navigation tree; wherein said document insertion and said document deletion methods each includes a step tending to maintain a breadth of an internal node of said navigation tree to a predetermined value &agr;.