SIGNAL DETECTION DEVICE, SIGNAL DETECTION METHOD, AND SIGNAL DETECTION PROGRAM

摘要

A signal detection device 10 is provided with a compression unit 11 for compressing an activation matrix by adding to each column an element of the row corresponding to a basis mapped to the information of the same acoustic element in an activation matrix calculated by non-negative matrix factorization using a basis matrix, using the information of acoustic elements making up an acoustic event, mapped to the basis constituting the basis matrix.