A tensor compression method based on energy-gathered dictionary learning
A technology of dictionary learning and compression method, applied in the field of signal processing, which can solve problems such as disaster of dimensionality, destruction of high-order structure and inherent correlation of original data, overfitting, etc.
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[0076] The technical solutions in the embodiments of the present invention will be described clearly and in detail below with reference to the drawings in the embodiments of the present invention. The described embodiments are only some of the embodiments of the invention.
[0077] The technical scheme that the present invention solves the problems of the technologies described above is:
[0078] The invention focuses on solving the problems of destroying the data structure, causing information loss and introducing new noise in the traditional tensor compression algorithm. The main idea is to obtain the dictionary, sparse coefficient tensor and kernel tensor through Tucker decomposition and sparse representation, and then form a new sparse representation through the approximate relationship between the sparse coefficient tensor and the kernel tensor, and finally use the energy-gathering dictionary learning algorithm to The dictionaries in the sparse representation perform dim...
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