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Pseudo-inversion on Formal Languages

2014
We consider the pseudo-inversion operation inspired by a biological event as a result of the partial inversion. We define the pseudo-inversion of a string w = uxv to consist of all strings v R xu R , where uv ≠ λ and consider the operation from a formal language theoretic viewpoint.
Da-Jung Cho   +5 more
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Displacement rank of pseudo-inverses

[Proceedings] ICASSP-92: 1992 IEEE International Conference on Acoustics, Speech, and Signal Processing, 1992
The concept of displacement rank can be defined in a general framework, and turns out to be a useful tool for revealing hidden structures in matrices. When a n*n matrix is structured, it can be described by O(n) parameters. Manipulations of linear systems can then be carried out with much less storage and computational requirements.
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Perturbation theory for pseudo-inverses

BIT, 1973
A perturbation theory for pseudo-inverses is developed. The theory is based on a useful decomposition (theorem 2.1) ofB + -A + whereB andA arem ×n matrices. Sharp estimates of ∥B + -A +∥ are derived for unitary invariant norms whenA andB are of the same rank and ∥B -A∥ is small.
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Pseudo-inversion: closure properties and decidability

Natural Computing, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Cho, Da-Jung   +5 more
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Pseudo-inverse filtering of IVUS images

IEE Proceedings - Science, Measurement and Technology, 1998
The resolution of medical ultrasound systems can be improved using filtering techniques. The authors present a filter for improving the axial resolution that approximates to an inverse filter, but which is less sensitive to noise than a standard inverse filter.
W.F. Young, S. McLaughlin
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Pseudo-inverse locality preserving iterative hashing

2017 International Conference on Progress in Informatics and Computing (PIC), 2017
Hashing learning has attracted increasing attention these years with the rapid increase of data. Some high-dimensional data have caused the ‘dimension disaster’ which make traditional methods ineffective. In this paper, we propose a method to find the nearest neighbor quickly from the high-dimensional data, named pseudo-inverse locality preserving ...
Zhongshu Du, Yongli Wang, Huacheng Sun
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Modified pseudo-inverse neural networks storing correlated patterns

Journal of Physics A: Mathematical and General, 1992
Summary: Neural networks with symmetric couplings which have an intermediate form between the Hebb learning rule and the pseudo-inverse one, storing strongly correlated patterns, are studied. Signal-to-noise analysis is made and replica-symmetric thermodynamic calculations are performed. Both approaches show that both in the Hopfield model limit and in
R. Der   +2 more
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Increasing Attraction of Pseudo-Inverse Autoassociative Networks

Neural Processing Letters, 1997
We show how partial reduction of self-connections of the network designed with the pseudo-inverse learning rule increases the direct attraction radius of the network. Theoretical formula is obtained. Data obtained by simulation are presented.
Dmitry O. Gorodnichy   +1 more
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The minimal pseudo-inverse matrix method

USSR Computational Mathematics and Mathematical Physics, 1987
See the review in Zbl 0629.65044.
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