OPERATION DETECTION DEVICE, OPERATION METHOD OF THE SAME, AND COMPUTER PROGRAM

摘要

PROBLEM TO BE SOLVED: To detect an operation to a device without installing an application in the device.SOLUTION: An operation pattern extraction section 12 separates feature vectors into a feature vector of time in which there is no possibility of operation and a feature vector of time in which there is possibility of operation. Then, the operation pattern extraction section 12 learns a packet pattern of time in which there is no possibility of operation as a noise pattern and stores it in a noise database 17. Regarding the feature vector similar to the noise pattern, noise is removed from the feature vector by acquiring differences in the vector of the noise pattern from the feature vector. An operation detection section 13, regarding the feature vector similar to the noise pattern, acquires differences in the vector of the noise pattern from the feature vector to remove the noise.SELECTED DRAWING: Figure 9