Abolfazl Jaafari

Dr. Abolfazl Jaafari

Research Institute of Forests and Rangelands, Agricultural Research, Education, and Extension Organization (AREEO), Tehran 64414-356, Iran
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Research Focus & Metrics

Academic Career Length

13Years (2014-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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10 January 2014 in International Journal of Environmental Science and Technology
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Journal Article
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Abolfazl JaafariAbolfazl Jaafari
Abolfazl Jaafari
ANAkbar Najafi
Akbar Najafi
Hamid Reza PourghasemiHamid Reza Pourghasemi
Hamid Reza Pourghasemi
JRJ. Rezaeian
J. Rezaeian
ASA. Sattarian
A. Sattarian

1 August 2019 in CATENA
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Journal Article
Closed access
Dieu Tien BuiDieu Tien Bui
Dieu Tien Bui
PNPhuong-Thao Thi Ngo
Phuong-Thao Thi Ngo
Tien Dat PhamTien Dat Pham
Tien Dat Pham
Abolfazl JaafariAbolfazl Jaafari
Abolfazl Jaafari
NMNguyen Quang Minh
Nguyen Quang Minh
PSPijush Samui
Pijush Samui

1 March 2019 in Agricultural and Forest Meteorology
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Journal Article
Closed access
Abolfazl JaafariAbolfazl Jaafari
Abolfazl Jaafari
EZEric K. Zenner
Eric K. Zenner
Mahdi PanahiMahdi Panahi
Mahdi Panahi
Himan ShahabiHiman Shahabi
Himan Shahabi

1 January 2019 in CATENA
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Journal Article
Closed access
WCWei Chen
Wei Chen
Mahdi PanahiMahdi Panahi
Mahdi Panahi
Paraskevas TsangaratosParaskevas Tsangaratos
Paraskevas Tsangaratos
Himan ShahabiHiman Shahabi
Himan Shahabi
IIIoanna Ilia
Ioanna Ilia
BABaharin Bin Ahmad
Baharin Bin Ahmad

17 June 2020 in Symmetry
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Journal Article
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Binh Thai PhamBinh Thai Pham
Binh Thai Pham
Abolfazl JaafariAbolfazl Jaafari
Abolfazl Jaafari
Mohammadtaghi avandMohammadtaghi avand
Mohammadtaghi avand
Nadhir Al-AnsariNadhir Al-Ansari
Nadhir Al-Ansari
TDTran Dinh Du
Tran Dinh Du
TTTran Thi Tuyen
Tran Thi Tuyen
Predicting and mapping fire susceptibility is a top research priority in fire-prone forests worldwide. This study evaluates the abilities of the Bayes Network (BN), Naïve Bayes (NB), Decision Tree (DT), and Multivariate Logistic Regression (MLP) machine learning methods for the prediction and mapping fire susceptibility across the Pu Mat National Park, Nghe An Province, Vietnam. The modeling methodology was formulated based on processing the information from the 57 historical fires and a set of nine spatially explicit explanatory variables, namely elevation, slope degree, aspect, average annual temperate, drought index, river density, land cover, and distance from roads and residential areas. Using the area under the receiver operating characteristic curve (AUC) and seven other performance metrics, the models were validated in terms of their abilities to elucidate the general fire behaviors in the Pu Mat National Park and to predict future fires. Despite a few differences between the AUC values, the BN model with an AUC value of 0.96 was dominant over the other models in predicting future fires. The second best was the DT model (AUC = 0.94), followed by the NB (AUC = 0.939), and MLR (AUC = 0.937) models. Our robust analysis demonstrated that these models are sufficiently robust in response to the training and validation datasets change. Further, the results revealed that moderate to high levels of fire susceptibilities are associated with ~19% of the Pu Mat National Park where human activities are numerous. This study and the resultant susceptibility maps provide a basis for developing more efficient fire-fighting strategies and reorganizing policies in favor of sustainable management of forest resources.

VNViet-Ha Nhu
Viet-Ha Nhu
ASAtaollah Shirzadi
Ataollah Shirzadi
Himan ShahabiHiman Shahabi
Himan Shahabi
Sushant Kumar SinghSushant Kumar Singh
Sushant Kumar Singh
Nadhir Al-AnsariNadhir Al-Ansari
Nadhir Al-Ansari
BABaharin Bin Ahmad
Baharin Bin Ahmad
Shallow landslides damage buildings and other infrastructure, disrupt agriculture practices, and can cause social upheaval and loss of life. As a result, many scientists study the phenomenon, and some of them have focused on producing landslide susceptibility maps that can be used by land-use managers to reduce injury and damage. This paper contributes to this effort by comparing the power and effectiveness of five machine learning, benchmark algorithms—Logistic Model Tree, Logistic Regression, Naïve Bayes Tree, Artificial Neural Network, and Support Vector Machine—in creating a reliable shallow landslide susceptibility map for Bijar City in Kurdistan province, Iran. Twenty conditioning factors were applied to 111 shallow landslides and tested using the One-R attribute evaluation (ORAE) technique for modeling and validation processes. The performance of the models was assessed by statistical-based indexes including sensitivity, specificity, accuracy, mean absolute error (MAE), root mean square error (RMSE), and area under the receiver operatic characteristic curve (AUC). Results indicate that all the five machine learning models performed well for shallow landslide susceptibility assessment, but the Logistic Model Tree model (AUC = 0.932) had the highest goodness-of-fit and prediction accuracy, followed by the Logistic Regression (AUC = 0.932), Naïve Bayes Tree (AUC = 0.864), ANN (AUC = 0.860), and Support Vector Machine (AUC = 0.834) models. Therefore, we recommend the use of the Logistic Model Tree model in shallow landslide mapping programs in semi-arid regions to help decision makers, planners, land-use managers, and government agencies mitigate the hazard and risk.