Application of vine copulas to dependence analysis of water quality data

سال انتشار: 1401
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 88

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شناسه ملی سند علمی:

JR_ARWW-9-1_010

تاریخ نمایه سازی: 18 شهریور 1402

چکیده مقاله:

In this study, using vine copulas and tree sequences, dependence analysis of groundwater quality variables (Total hardness (TH), Sodium adsorption ratio (SAR), Sodium percentage (Na %) and magnesium (Mg)) was performed. For this purpose, the tree sequence of vine copulas including regular vine (R-vine), independent version of R-vine, also Gaussian version of R-vine, Gaussian independent version of R-vine, canonical vine (C-vine), independent version of C-vine, drawable vine (D-vine) and independent D-vine were evaluated independently in pairwise variables analysis. The study results of dependence structures and tree sequences of Vine copulas showed that among the studied copulas, the performance of the independent C-vine was ۳.۸ % better than R-vine and ۰.۲۵ % (insignificant and negligible) better than D-vine. The tree sequences provided by independent C-vine preserve correlation of pairwise variables until the last tree. In the last tree of independent C-vine, edge correlation of Mg, Na % | TH, and SAR reaches zero. Due to the proper performance of D-vine in dependence analysis of the studied variables, this copula is introduced as the selected copula.

نویسندگان

Mohammad Nazeri Tahroudi

Department of Water Engineering, Faculty of Agriculture, University of Birjand, Birjand, Iran.

Yousef Ramezani

Department of Water Engineering, Faculty of Agriculture, University of Birjand, Birjand, Iran.

Carlo De Michele

Department of Civil and Environmental Engineering, Politecnico di Milano, Milan, Italy.

Rasoul Mirabbasi

Department of Water Engineering, Faculty of Agriculture, Shahrekord University, Shahrekord, Iran.

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  • Aas K., Czado C., Frigessi A., Bakken H., Pair-copula constructions ...
  • Bedford T., Cooke R M., Monte Carlo simulation of vine ...
  • Bedford T., Cooke R., intelligence A., Probability density decomposition for ...
  • Czado C., Analyzing Dependent Data with Vine Copulas. Lecture Notes ...
  • Dastourani M., and Nazeri Tahroudi M., Toward coupling of groundwater ...
  • Dibmann J., Brechmann E.C., Czado C., Kurowicka D., Selecting and ...
  • Genest C., and Favre A.C., Everything you always wanted to ...
  • Grimaldi S., and Serinaldi F., Asymmetric copula in multivariate flood ...
  • Grimaldi S., and Serinaldi F., Design hyetograph analysis with ۳-copula ...
  • Hollander M., Wolfe D.A., Chicken E., Nonparametric statistical methods. New ...
  • Hui-Mean F., Yusof F., Yusop Z., Suhaila J., Trivariate copula ...
  • Joe H., Multivariate models and multivariate dependence concepts: Chapman and ...
  • Khashei‐Siuki A., Shahidi A., Ramezani Y., Nazeri Tahroudi M., Simulation ...
  • Khozeymehnezhad H., and Nazeri-Tahroudi M., Analyzing the frequency of non-stationary ...
  • Kurowicka D., and Cooke R., Uncertainty analysis with high dimensional ...
  • Nazeri Tahroudi M., Ramezani Y., De Michele C., Mirabbasi R., ...
  • Nazeri Tahroudi M., Ramezani Y., De Michele C., Mirabbasi R., ...
  • Nazeri Tahroudi M., Ramezani Y., De Michele C., Mirabbasi R., ...
  • Nazeri Tahroudi M., Ramezani Y., De Michele C., Mirabbasi R., ...
  • Nazeri-Tahroudi M., Ramezani Y., De Michele C., Mirabbasi R., Bivariate ...
  • Nelsen R., An introduction to copulas. New York: Springer, (۲۰۰۶) ...
  • Pham M.T., Vernieuwe H., De Baets B., Verhoest N., A ...
  • Ramezani Y., Nazeri Tahroudi M., Ahmadi F., Analyzing the droughts ...
  • Salvadori G., De Michele C., Kottegoda N T., Rosso R., ...
  • Serinaldi F., Bonaccorso B., Cancelliere A., Grimaldi S., Probabilistic characterization ...
  • Sklar A., N-dimensional distribution functions and their margins. Publications de ...
  • Tabatabaei S.M., Dastourani M., Eslamian S., Nazeri Tahroudi M., Ranking ...
  • Wang F., Wang Z., Yang H., Zhao Y., Zhang Z., ...
  • Xu C., Liu Z., Tao W., Zhu P., A vine ...
  • Zhang L., Singh V., Bivariate flood frequency analysis using the ...
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