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

Claim 2:
3. A data generalization method for generalizing attribute values; the data generalization method comprising:
rearranging 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;
retrieving some of the rearranged attribute values from the secondary memory into a primary memory;
retrieving 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;
executing generalization processing based on the attribute values retrieved into the primary memory and the generalization hierarchy retrieved into the primary memory; and
moving the attribute values after the generalization processing to the secondary memory and rearranging them into an original order.