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Can I read Two-factor degeneracies and a stabilization of PARAFAC on EtoBox?
Two-factor degeneracies and a stabilization of PARAFAC by William S. Rayens; Benjamin C. Mitchell is a Chemistry article available to read on EtoBox.
What is Two-factor degeneracies and a stabilization of PARAFAC about?
existence of PARAFAC swamps and the presence of two-factor degeneracies (2FDs). This observation, coupled with the recognition that post-swamp resolutions were generally better than pre-swamp resolutions allowed the user a method of detecting when a swamp had likely been encountered and, hence, when it was safe to assume that PARAFAC had converged to a suitable resolution. Still, this correspondence alone did not suggest how one might reduce the number of PAWAC iterations required to move through a swamp. In this paper, it is noted that serious 2FDs must produce an identifiable ill-conditioning in the least squares estimation step in PAWAC. Moreover, a serious 2FD is only one way this ill-conditioning may occur and, hence, it is more correct to say that swamps correspond to this ill-conditioning in general, rather than to the presence of 2FDs in particular. In an attempt to reduce the number of iterations that PARAFAC spends in a swamp, a particular method of stabilization is employed and results are presented which suggest that the number iterations can often be greatly reduced.
Who reads Two-factor degeneracies and a stabilization of PARAFAC?
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- William S. Rayens; Benjamin C. Mitchell
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0169-7439)
- Published
- 1997
- Language
- EN
- Field
- Chemistry (Physical Sciences)