Evaluation of data mining and bivariate statistical methods in risk zoning of fault occurrence (Case study: Qara-Qum watershed)

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BASHIRI M.; Kavousi Davoudi S.M.; AFZALI A.

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Journal: IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH Year:2020 | Volume:26 | Issue:4 (77) Page(s): 1003-1019

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Title

Evaluation of data mining and bivariate statistical methods in risk zoning of fault occurrence (Case study: Qara-Qum watershed)

Author(s)

BASHIRI M. | Kavousi Davoudi S.M. | AFZALI A. | Issue Writer Certificate

Keywords

Information valueQ1

classification AlgorithmQ1

area densityQ1

ROC curveQ1

Abstract

Fault is one of the main processes in tectonics which has relationship with phenomena such as earthquake. Therefore, awareness of the effect of environmental factors on fault occurrence and recognition of high risk areas is very important, that these goals in the present study have been investigated. The research area is Qara-Qum where after determining its faults, altitude, slope, direction, climate, land use, geomorphology, geology, erosion, precipitation, flood zones, pedology, stream power, topographic ruggedness index, distance from road, waterway, anticline and syncline were extracted. Then, data mining algorithms including of decision tree, random forest, cumulative, backing machine, logistic regression and neural network in R software are used to identify the value of variables and bivariate statistical methods including of Information value and area density for identification of the values for each variable class fitted in fault occurrence. The accuracy of classification Algorithms with ROC curve showed that based on input variables, random forest and support vector machine algorithms with 88% and 86% area under a curve had the best performance in classifying fault occurrence, respectively. Finally, according to the Gini coefficients in random forest algorithm, the zoning maps obtained by combining this algorithm were prepared and validated by bivariate statistical methods. According to this algorithm, the height, pedology and topographic ruggedness index variables, identified as the most important parameters in the fault occurrence respectively. Based on the zoning maps evaluation, Information value and area density methods, around 52 and 35 percent of faults placed in very high risk class respectively. Therefore, the Information value method was more accurate in identifying fault-sensitive zones. According to the results, data mining methods were introduced as a useful tool in fault risk management. It is also necessary to pay attention to environmental variables, especially topography, during the basin management and land use change stages.

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APA: Copy

BASHIRI, M., Kavousi Davoudi, S.M., & AFZALI, A.. (2020). Evaluation of data mining and bivariate statistical methods in risk zoning of fault occurrence (Case study: Qara-Qum watershed). IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH, 26(4 (77) ), 1003-1019. SID. https://sid.ir/paper/362621/en

Vancouver: Copy

BASHIRI M., Kavousi Davoudi S.M., AFZALI A.. Evaluation of data mining and bivariate statistical methods in risk zoning of fault occurrence (Case study: Qara-Qum watershed). IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH[Internet]. 2020;26(4 (77) ):1003-1019. Available from: https://sid.ir/paper/362621/en

IEEE: Copy

M. BASHIRI, S.M. Kavousi Davoudi, and A. AFZALI, “Evaluation of data mining and bivariate statistical methods in risk zoning of fault occurrence (Case study: Qara-Qum watershed),” IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH, vol. 26, no. 4 (77) , pp. 1003–1019, 2020, [Online]. Available: https://sid.ir/paper/362621/en

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