METHOD TO FILTER AND GROUP TREE STRUCTURES WHILE RETAINING THEIR RELATIONSHIPS

摘要

A method for filtering tree nodes and a method for grouping tree nodes are provided. The filtering method filters a plurality of nodes of at least one source tree according to a criterion. The result of the filtering includes at least one target tree and each target tree is a subset of one of the source trees. The grouping method splits a plurality of nodes of at least one source tree into a plurality of groups according to a criterion. Each group includes at least one target tree and each target tree is a subset of one of the source trees. The hierarchy of at least one source tree is preserved in the target trees after the filtering and/or the grouping.

主权项

1. A method for filtering tree nodes, including:
filtering a plurality of nodes of at least one source tree according to a criterion, wherein a result of the filtering includes at least one target tree and each said target tree is a subset of a said source tree, wherein hierarchy of at least one said source tree is preserved in at least one said target tree.