Signal detection device, signal detection method, and signal detection program
AssigneeNEC Corporation
InventorsTatsuya Komatsu, Yuzo Senda
Life of this patent
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Abstract
A signal detection device 10 includes a compression unit 11 which compresses 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 computed 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.
Claims16
A signal detection device comprising:
- a compression unit implemented at least in hardware and configured to compress an activation matrix by adding to each column an element of a row corresponding to a basis mapped to information of the same acoustic element in the activation matrix computed by non-negative matrix factorization using a basis matrix, using information of acoustic elements making up an acoustic event, mapped to the basis constituting the basis matrix.
A signal detection method comprising:
- compressing, by a processor, an activation matrix by adding to each column an element of a row corresponding to a basis mapped to information of the same acoustic element in the activation matrix computed by non-negative matrix factorization using a basis matrix, using information of acoustic elements making up an acoustic event, mapped to the basis constituting the basis matrix.
A non-transitory computer-readable recording medium having recorded therein a signal detection program for causing a computer to perform processing comprising:
- compression processing of compressing an activation matrix by adding to each column an element of a row corresponding to a basis mapped to information of the same acoustic element in the activation matrix computed by non-negative matrix factorization using a basis matrix, using information of acoustic elements making up an acoustic event, mapped to the basis constituting the basis matrix.
Dependencies are inferred from the claim text.