| 摘要 |
PROBLEM TO BE SOLVED: To enable high-speed determination of presence or absence of a section including a corresponding signal between an input signal and an accumulation signal.SOLUTION: An input signal characteristic vector extracting unit 101 extracts a characteristic vector about a partial signal of an input signal, and an input signal characteristic vector integrating unit 102 generates an input signal integrated characteristic vector in which characteristic vectors of all sections are integrated. An accumulation signal characteristic vector extracting unit 103 extracts a characteristic vector about a partial signal of an accumulation signal, and an accumulation signal characteristic vector integrating unit 104 generates an accumulation signal integrated characteristic vector in which characteristic vectors of all the sections are integrated. An integrated characteristic vector similarity calculation unit 105 calculates integrated similarity which is similarity of the input signal integrated characteristic vector and the accumulation signal integrated characteristic vector corresponding to a section taken out according to a prescribed criterion, and a determination unit 106 determines presence or absence of a section including the same signal between the input signal and the accumulation signal on the basis of magnitude of the integrated similarity. |
