Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
412418 | Neurocomputing | 2013 | 9 Pages |
Abstract
We propose an algorithm, called Bases Sorting, to sort the bases of over-complete dictionaries used in sparse representation according to the magnitudes of coefficients when representing the training samples. Then the bases are considered to be ordered from low to high frequencies, thus generalizing the traditional concept of frequency for over-complete dictionaries. Applications are also shown.
Related Topics
Physical Sciences and Engineering
Computer Science
Artificial Intelligence
Authors
Chun-Guang Li, Zhouchen Lin, Jun Guo,