APPARATUS AND METHOD FOR RECONSTRUCTING DATA STRUCTURAL ACCORDING TO ACCESS FREQUENCY

摘要

PURPOSE: An apparatus and a method for reconstructing a data structural according to an access frequency are provided to rapidly access to data with high access frequency by converting an existing data structural into a tree structure, and by providing a weight according to an access frequency of each data node. CONSTITUTION: A logical structure converter(11) converts indexes on data capable of performing an access through a URL in the form of a tree. A restriction condition processor(12) selects nodes and edges not to be changed in the data structural system in the form of the tree by the logical structure converter(11) and performs a grouping of the nodes and edges selected. In addition, the restriction condition processor(12) divides existing trees into sub trees. A weight setting device(13) sets a weight to each node in the sub trees divided through the processor(12). A hoffman code converter(14) converts each weight into hoffman codes and provides the codes to each node. A logical data structure generator(15) generates logical data according to hoffman code values provided through the code converter(14).