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Wyświetlanie 1-3 z 3
Tytuł:
Wavelets in the prediction of short-time series
Autorzy:
Hadaś-Dyduch, Monika
Powiązania:
https://bibliotekanauki.pl/articles/584990.pdf
Data publikacji:
2015
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
wavelets
prediction
Daubechies wavelets
Haar wavelet
Opis:
The aim of this article is to present original application wavelets to the prediction of short-term of time series. The model proposed to predict short-term time series (in particular for predicting macroeconomic indicators) is a model of copyright. The model is based on wavelet analysis, the Haar wavelet, the Daubechies wavelet and adaptive models. The Daubechies wavelets are a family of orthogonal wavelets and are characterized by a maximal number of vanishing moments for some given support. Adaptive models have been appropriately modified by the introduction of a wavelet function and combined into one predictive model. The results obtained from the study results indicate that the authorial model is an effective tool for short-term predictions. The model was applied to predict macroeconomic indicators.
Źródło:
Mathematical Economics; 2015, 11(18); 43-54
1733-9707
Pojawia się w:
Mathematical Economics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ rozszerzenia próbki przy generowaniu współczynników falkowych szeregu na trafność prognozy
Impact of sample extension in the generation of wavelet coefficients series on the accuracy of forecasts
Autorzy:
Hadaś-Dyduch, Monika
Powiązania:
https://bibliotekanauki.pl/articles/425223.pdf
Data publikacji:
2014
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
wavelet transform
multi-resolution analysis
prediction of WIG
prediction series
wavelet coefficients
Opis:
The purpose of the study is to investigate the effect of the proposed method of sample extensions to the accuracy of the forecast series, in this case the WIG index. The forecast of series presenting the WIG was made on the basis of a model based on wavelet transform. Prior to the application of the extension number, the number of input data samples was divided into an even number of observations to define a more accurate forecasts. The article focuses only on the sample at an additional extension sets encapsulation of skipping the process of prediction coefficients. Therefore the article does not describe in detail the model used to predict because the aim of this article is not to evaluate the ability of prediction model and only the effect on the final outcome of prediction of six-rule extension method when determining the ak coefficients.
Źródło:
Econometrics. Ekonometria. Advances in Applied Data Analytics; 2014, 4(46); 62-71
1507-3866
Pojawia się w:
Econometrics. Ekonometria. Advances in Applied Data Analytics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Iluzja, marzenia a rzeczywistość – bezpośrednia i niebezpośrednia inwestycja w indeksy giełdowe na przykładzie produktów inwestycyjnych
The illusion, dreams and reality – direct and indirect investment in stock indices on the example of investment products
Autorzy:
Hadaś-Dyduch, Monika
Powiązania:
https://bibliotekanauki.pl/articles/434098.pdf
Data publikacji:
2016
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
structured products
alternative investments
banking products
stock indices
Opis:
In the article the author attempts to compare direct and non-direct investment in the stock indices. By direct investment the author meansthe buying a particular index on the Warsaw Stock Exchange strictly preferred by the investor stock exchange. While the indirect investment is an investment in bank structured products based on stock indices, namely products of which the final result depends on the formation of the indices. It is assumed that structured products complement or even replace the traditional investments in stocks, bonds and deposits. The investment in a structured product is to be for investors a substitute for direct investment in the index and listed companies, raw materials, baskets investment, real estate, and other instruments. The question that arises here is: are structured products really substitutes for traditional investments and whether they give satisfactory returns to investors? The question was answered in the article defining the rate of return of structured products based on companies and stock indices ended 31.12.2013 on the Polish capital market. The results regarding the structured products launched and completed during the period 1.01.2000 – 31.12.2013 on the Polish capital market, were compared with the rate of return of selected indices. For the comparative analysis the following indices were selected: the Hang Seng, Dow Jones, WIG, WIG 20, Hang Seng, Nikkei, Shanghai Composite.
Źródło:
Śląski Przegląd Statystyczny; 2016, 14 (20); 185-202
1644-6739
Pojawia się w:
Śląski Przegląd Statystyczny
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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