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Communication is the life-blood of a project, whether permanent or temporary. It is essential for project stakeholders to identify and evaluate communication efficiency, which can reveal the relationships of responsibilities, powers and interests among stakeholders. This paper explores a new evaluation model of project communication based on cloud gravity centre theory. To assess project communication...
The reasoning error of existing high dimensional cloud model is large when some domains are correlated, and a correction high dimensional cloud model is proposed based on cloud model and multivariate normal distribution theory. The entropy and hyper entropy were replaced by covariance entropy and covariance hyper-entropy in the correction cloud model, which were used to describe the correlation of...
As for the analysis of reliability and validity, they are applied to screen the questions of the questionnaire and determine the suitability of the questions, especially in the educational field. However, the results obtained from the questionnaire still cannot reach a decision. Hence, the paper provides the method of entropy, which uses randomness as the starting point, to quantify the uncertain...
The paper presents combining k-error approximate entropy with some tests in NIST's STS randomness test suite to analyze cryptographical properties of several chaotic pseudorandom sequences generated by diverse maps and quantified methods, including Logistic map, Cubic map, Henon map, Sine map, Tent map, Chebyshev map, Piecewise-linear map, Piecewise-square-root map. Simulation results show that the...
The evolution of knowledge networks plays an important role to the technological improvement of enterprises and countries. From the dissipative structure perspective, this paper analyses knowledge network system. And then, we propose the evolutionary conditions and its mechanisms. At last, we also discuss the policy meaning in this paper.
Considering the benefits of passengers and bus corporations, this paper established a mathematical model of public transport network optimization. A Multi-objective Optimization Problems Evolutionary Algorithm (MOPEA) is presented to solve optimization problems in the public transport network. In this algorithm, the theory of particle system changing from non-equilibrium to equilibrium is used to...
In this paper, a new kind of entropy and a similarity measure of intuitionistic fuzzy sets are proposed, and the relationships between the entropy and similarity measure are examined in detail. It is proved that similarity measure and entropy of intuitionistic fuzzy sets can be transformed by each other based on their axiomatic definitions.
In this paper, a new scheme for unsupervised classification of polarimetric synthetic aperture radar (PolSAR) images is presented. The method mainly consists of four parts: eigenvector analysis of the coherency (or covariance) matrix, Krogager decomposition, unsupervised classification using Krogager coefficients and scattering entropy, and iterative classification based on the Wishart distance measure...
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