Study of the degree of III conditioning of the phase space of pencil-beam radiotherapy using singular value decomposition

1995 ◽  
Vol 6 (1) ◽  
pp. 104-113 ◽  
Author(s):  
D. Lefkopoulos ◽  
P. Grandjean ◽  
A. Laouar ◽  
M. Schlienger
Keyword(s):  
Phase Space ◽  
Singular Value Decomposition ◽  
Singular Value ◽  
Pencil Beam ◽  
Value Decomposition

Stability Analysis of Tribosystem Based on the Energy Feature of Friction Vibration

2017 ◽  
Vol 139 (5) ◽  
Author(s):  
Ting Liu ◽  
Guobin Li ◽  
Haijun Wei ◽  
Pengfei Xing
Keyword(s):  
Stability Analysis ◽  
Phase Space ◽  
Singular Value Decomposition ◽  
Feature Vector ◽  
Singular Value ◽  
Vibration Energy ◽  
Feature Parameter ◽  
Energy Feature ◽  
Space Matrix ◽  
Value Decomposition

The tribosystem stability in different wear stages was analyzed by the friction vibration energy feature, which was extracted from the phase-space-matrix of friction vibration attractor with singular value decomposition (SVD). An energy feature parameter K of friction vibration was defined as the norm of the singular value feature vector, and the variation of K in different wear stages was also investigated in this paper. Results show that K becomes larger in the running-in wear stage, friction vibration energy becomes higher and tribosystem stability gets worse; K fluctuates smoothly and steadily in the stable wear stage, friction vibration energy is stable and the tribosystem is dynamically stable; and K increases sharply in the severe wear stage, the friction vibration energy increases dramatically and the tribosystem stability decreases greatly. Therefore, the friction vibration energy can reflect the tribosystem stability in different wear stages with the energy feature parameter K.

Improving TF-IDF with Singular Value Decomposition (SVD) for Feature Extraction on Twitter

2017 ◽  
Author(s):  
Ammar Ismael Kadhim ◽  
Yu-N Cheah ◽  
Inaam Abbas Hieder ◽  
Rawaa Ahmed Ali
Keyword(s):  
Feature Extraction ◽  
Singular Value Decomposition ◽  
Singular Value ◽  
Value Decomposition

Multi-scale singular value decomposition polarization image fusion defogging algorithm and experiment

2020 ◽  
Vol 13 (6) ◽  
pp. 1-10
Author(s):  
ZHOU Wen-zhou ◽  
◽  
FAN Chen ◽  
HU Xiao-ping ◽  
HE Xiao-feng ◽  
...  
Keyword(s):  
Singular Value Decomposition ◽  
Image Fusion ◽  
Singular Value ◽  
Multi Scale ◽  
Polarization Image ◽  
Value Decomposition
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