Patent ID: 7725412

Claim:
A data processing device for processing time-sequence data, said data processing device comprising: data extracting means for extracting time-sequence data for a predetermined time unit from time-sequence data; and processing means of a control unit for obtaining scores for nodes of an SOM (Self-Organizational Map) configured from a plurality of nodes provided with a spatial array configuration, said scores showing the applicability to time-sequence data for a predetermined time unit of the nodes, wherein the node with the best score thereof is determined to be the winning node which is the node most applicable to time-sequence data for a predetermined time unit; said processing means obtaining scores as to the time-sequence data for one predetermined time unit only regarding a distance-restricted node wherein the distance from the winning node as to the time-sequence for a predetermined time unit immediately preceding the time-sequence data of one predetermined time unit is within a predetermined distance; and wherein, of said distance-restricted nodes, the node with the best said score is determined to be the winning node as to the time-sequence data for said one predetermined time unit.