scholarly journals Empirical study in finite correlation coefficient in two phase estimation

2004 ◽  
Vol 31 (10) ◽  
pp. 890-902 ◽  
Author(s):  
M. Khoshnevisan ◽  
F. Kaymarm ◽  
H.P. Singh ◽  
R. Singh ◽  
F. Smarandache
2004 ◽  
Vol 15 (4) ◽  
pp. 357-368 ◽  
Author(s):  
L. Fattorini ◽  
M. Marcheselli ◽  
C. Pisani

2014 ◽  
Vol 668-669 ◽  
pp. 314-317
Author(s):  
Jiang Rong Xu ◽  
Jin Fang Gao ◽  
Lu Wang

Based on the PDF transport equation of particle, Using both non-isotropic correlation coefficient and isotropic correlation coefficient, the two-order moment trajectory model of particles (TOMTM) is used to simulate the backward-facing step two-phase flow. It is shown that the isotropic correlation coefficient of TOMTM can simulate the anisotropic turbulence of particle better.


Author(s):  
FENGHUA WEN ◽  
ZHIFENG LIU

In this paper, a copula-based correlation measure is proposed to test the interdependence among stochastic variables in terms of copula function. Based on a geometric analysis of copula function, a new derivation method is introduced to derive the Gini correlation coefficient. Meantime theoretical analysis finds that the Gini correlation coefficient tends to overestimate the tail interdependence in the case of stochastic variables clustering at the tails. For this overestimation issue, a fully new correlation coefficient called Co is developed and extended to measure the tail interdependence. Empirical study shows that the new correlation coefficient Co can effectively solve the overestimation issue, which implies that the proposed new correlation coefficient is more suitable to describe the interdependence among stochastic variables than the Gini correlation coefficient.


Author(s):  
Ekaterina E. Belousova

The aim of the research presented in the paper is the empirical study of the semantic attitudes and life meanings of students in the perception of advertising posters. Advertising impact is viewed as a process of broadcasting the meanings concentrated in advertising posters. The study sample consisted of 80 students from two universities (Rostov-on-Don, Russia). To determine the severity of life meanings, the method of life meanings was used by V.Yu. Kotlyakov (V.Yu. Kotlyakov, 2003), the method of expert assessments was used to study advertising posters. The results were processed using the methods of mathematical statistics: descriptive statistics were used; as well as nonparametric tests for comparing several independent samples, the Kruskal-Wallis H-test, for studying the relationships between the scales of V.Yu. Kotlyakov and the assessment of advertising posters by the respondents used the Spearmans rank correlation coefficient. It was shown that in the process of broadcasting meanings in advertising posters, students semantic attitudes are actualized. The sample of students showed a tendency to evaluate advertising posters in accordance with the dominant meanings of life. It is shown that there is a relationship between the dominant life meanings of students and the ratings of advertising posters.


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