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Can I read Evolutionary-based Methods for Adaptive Signal Representation on EtoBox?
Evolutionary-based Methods for Adaptive Signal Representation by Adelino R.Ferreira da Silva is a Computer Science article available to read on EtoBox.
What is Evolutionary-based Methods for Adaptive Signal Representation about?
In spite of the good decomposition properties o!ered by wavelet-packet bases, it is well known that more #exible decompositions are required. On the other hand, one well known disadvantage of wavelet transforms is the lack of shift invariance. We propose the use of an evolutionary approach as the main tool for searching adaptive signal representations. The algorithm generates a population of solutions based on basis expansions of multi-"lter, time-shifted, wavelet-packet libraries. The approach of organizing libraries of bases as a tree has been extended to construct a joint tree, to guide the process of generating shifted wavelet-packet transforms. The standard time}frequency diagram has been extended to enable the representation of shifted packet basis. We show that the evolutionary approach may be used as a #exible tool for obtaining signal representations in overcomplete dictionaries.
Who reads Evolutionary-based Methods for Adaptive Signal Representation?
It is typically read by researchers, students, and practitioners in Computer Science.
- Author
- Adelino R.Ferreira da Silva
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0165-1684)
- Published
- 2001
- Language
- EN
- Field
- Computer Science (Physical Sciences)