Patent ID: 11914740
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A data generalization apparatus for generalizing attribute values, the data generalization apparatus comprising:
rearrangement circuitry that rearranges the attribute values in a secondary memory in accordance with an order of arrangement of the attribute values in a generalization hierarchy in the secondary memory;
attribute value retrieval circuitry that retrieves some of the rearranged attribute values from the secondary memory into a primary memory;
generalization hierarchy retrieval circuitry that retrieves a portion of the generalization hierarchy from the secondary memory into the primary memory, the portion corresponding to the attribute values to be processed among the attribute values retrieved into the primary memory;
generalization processing circuitry that executes generalization processing based on the attribute values retrieved into the primary memory and the generalization hierarchy retrieved into the primary memory; and
re-rearrangement circuitry that moves the attribute values after the generalization processing to the secondary memory and rearranges them into an original order.