Patent ID: 8189928

Claim:
A content management apparatus, comprising: content inputting means for inputting a content with which position information is associated; position information acquisition means for acquiring the position information associated with the content inputted by said content inputting means; tree production means for producing binary tree structure data corresponding to a binary tree having leaves to which contents inputted by said content inputting means correspond based on the position information of the contents acquired by said position information acquisition means; and determination means for extracting a node which satisfies a predetermined condition from among nodes of the binary tree structure data produced by said tree production means and determining those of the contents which belong to the extracted node as one group, wherein it is successively determined for each of the nodes at the lowest level of the tree whether or not the node satisfies the predetermined condition, and when a given node at the lowest level of the tree does not satisfy the predetermined condition, the apparatus automatically determines whether or not a node immediately above the given node, and coupled to the given node, satisfies the predetermined condition.