Anhui University of Finance and Economics

About: Anhui University of Finance and Economics is a education organization based out in Bengbu, China. It is known for research contribution in the topics: China & Hopf bifurcation. The organization has 933 authors who have published 1070 publications receiving 11500 citations. The organization is also known as: AUFE.

Empirical Research on the Nonlinear Relationship between the Short and the Long Shanghai Interbank Offered Rates

Abstract: The introduction of Shanghai interbank offered rate (Shibor) will turn back the situation that our country has not really unified benchmark interest rate. The traditional method of unit root test and the method of unit root test under non-linear adjustment, exponential smooth transition autoregressive, have been discussed. Based on Shibor, empirical tests are made: Nonlinearities of Shibor such as overnight rate, one year rate and the spread have been examined, and unit root tests are paid to the level, the first difference and the spread of overnight rate and one year rate based on the traditional method and the method of exponential smooth transition autoregressive respectively. The result shows: There are remarkable non-linear adjustment characteristics in the spread of Shanghai Interbank Offered Rate (Shibor). After considering non-linear adjustment, overnight rate and one year rate are cointegrated with the vector (-1,1)?, and the long-run equilibrium relationship between them is stable.

Weight distributions and weight hierarchies of a family of p-ary linear codes

Abstract: The weight distribution and weight hierarchy of a linear code are two important research topics in coding theory. In this paper, by choosing proper defining sets from inhomogeneous quadratic functions over $${\mathbb {F}}_{q}^{2}$$ , we construct a family of three-weight p-ary linear codes and determine their weight distributions and weight hierarchies. Most of the codes can be used in secret sharing schemes.

Design and Factorization of Two-Channel Perfect Reconstruction Filter Banks with Causal-Stable IIR Filters

Abstract: In this paper, new design and factorization methods of two-channel perfect reconstruction (PR) filter banks (FBs) with casual-stable IIR filters are introduced. The polyphase components of the analysis filters are assumed to have an identical denominator in order to simplify the PR condition. A modified model reduction is employed to derive a nearly PR causal-stable IIR FB as the initial guess to obtain a PR IIR FB from a PR FIR FB. To obtain high quality PR FIR FBs for carrying out model reduction, cosine-rolloff FIR filters are used as the initial guess to a nonlinear optimization software for solving to the PR solution. A factorization based on the lifting scheme is proposed to convert the IIR FB so obtained to a structurally PR system. The arithmetic complexity of this FB, after factorization, can be reduced asymptotically by a factor of two. Multiplier-less IIR FB can be obtained by replacing the lifting coefficients with the canonical signal digitals (CSD) or sum of powers of two (SOPOT) coefficients.

Application of Gradient Tree in Credit Evaluation of Chinese Peasant Households

Abstract: The traditional peasant household credit evaluation is not only subjective, but also complex, time-consuming and inefficient with the help of experts' experience. In this paper, the research data of China family survey and research center are used to establish an evaluation model of China's peasant household credit with the help of the gradient tree model in the machine learning algorithm, and the AUC and F1 score are used to verify the evaluation results of the model. The empirical results show that the gradient tree model has a good prediction ability in peasant household credit evaluation, and it can be used as a new evaluation method in peasant household credit evaluation in China.

Thrill and Agony at Ultimate Fighting Championship

Abstract: This case study seeks to make evident the imperative of better stakeholder management for contemporary competition by examining the evolving corporate social responsibility (CSR) strategies at the ...