Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
Discrete GM(1,1) model solves the bias defect in homogeneous exponential fitting using GM (1,1) model. General GM(1,1) model solves the conversion problem of the original equation between differential form and differential form, and can effectively profile GM(1,1) model and Discrete GM(1,1) model. But, the modeling mechanism, solution approach and lots of good properties about General GM(1,1) model...
An approach based on data mining technology is put forward to evaluate the effect of tumor treatment. Firstly, cases are clustered according to the initial state of cancer patients, such as age, sex and tumor attributes. Second, the efficacy of magnetic therapy is classified based on pre and post information (mainly tumor image information) of the patient. After analyzing the images of cancer in magnetic...
If one enterprise suffered risk in an industrial cluster, the risk could be fast contagious. Drawing on the process of biological virus transmission, the paper builds a SEIRD model of risk contagion. From the equilibrium of risk contagion, it then analyses its developing trend of the concerning industrial cluster, which sheds light on a possible means to effectively control risk contagion of an industrial...
A new design scheme of tracking control for a class of typical disequilibrium cobweb models is proposed in this paper. From the viewpoint of economic control theory , dynamic analysis method is used to study the stability of disequilibrium market containing the expected price, the controllability of the expected price and the tracking performance of the error between demand and supply. The design...
Based on Chinese treasury market's characteristic and oversea methods for estimating term structure of interest rates, a new model for computing Chinese term structure is represented. The empirical research and comparison of this model with others are carried out using the data of Chinese treasury market. The results show that the model can significantly decrease the errors of forecasting yields to...
In this paper long memory property is examined in the Chinese stock market by means of high frequency data. Two semiparametric methods in frequency domain, local Whittle (LW) estimation and log periodogram (LP) regression, are used to analysis the fractional integration order d. The results show that LW estimation can solve choice of the parameter m compared to LP regression, and neglect intraday...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.