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Title |
On the Relationship between LS-SVM, MSA, and LSA |
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Author |
Yatong Zhou, Taiyi Zhang, Liejun Wang |
| Citation |
Vol. 6 No. 11 pp. 1-5 |
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Abstract |
A common task in signal processing is to approximate adequately a signal. It is crucial to understand various methods to this task. In this paper we survey three different approximation methods: least squares support vector machine (LS-SVM), multiresolution signal approximation (MSA), and least squares approximation (LSA) to highlight their mathematical relationship. Based on the theoretical analysis, we prove that LS-SVM is identical to the LSA with the minimum norm solution, and MSA is identical to the LSA with the least squares solution. Therefore, both LS-SVM and MSA can be derived as specific instances of LSA. |
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Keywords |
Signal processing, support vector machine, multiresolution, approximation, least squares, relationship |
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