Browsing Scopus İndeksli Yayınlar Koleksiyonu by Author "DEMİR, Vahdettin"
Now showing items 1-8 of 8
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Estimation of long-term monthly temperatures by three different adaptive neuro-fuzzy approaches using geographical inputs
KİŞİ, Özgür; DEMİR, Vahdettin; SUNGWON, Kim (American Society of Civil Engineers (ASCE), 2017)This paper investigates the accuracy of three different adaptive neuro-fuzzy inference systems (ANFISs), ANFIS with grid partition (ANFIS-GP), ANFIS with substructive clustering (ANFIS-SC), and ANFIS with fuzzy c means ... -
Hybrid Adaptive Neuro-Fuzzy Models for Water Quality Index Estimation
YASEEN, Zaher Mundher; RAMAL, Majeed Mattar; DIOP, Lamine; JAAFAR, Othman; DEMİR, Vahdettin; KİŞİ, Özgür (Springer Netherlands, 2018)Soft computing models are known as an efficient tool for modelling temporal and spatial variation of surface water quality variables and particularly in rivers. These model’s performance relies on how effective their ... -
Hydrological Time Series Forecasting Using Three Different Heuristic Regression Techniques
KİŞİ, Özgür; SHIRI, Jalal; DEMİR, Vahdettin (Elsevier Inc., 2017)The ability of three different heuristic regression methods, least-square support vector regression (LSSVR), multivariate adaptive regression spline (MARS), and M5 model tree (M5Tree), was investigated in forecasting ... -
Impacts of climatic variables on water-level variations in two shallow Eastern Mediterranean lakes
YAĞBASAN, Özlem; YAZICIGİL, Hasan; DEMİR, Vahdettin (ENVIRONMENTAL EARTH SCIENCES, 2017-08-01)Variations in temperature and precipitation have direct impacts on the physical, chemical and biological characteristics of the shallow lakes. This paper examines the possible linkages between climate variables and the ... -
Modeling of air pollutants using least square support vector regression, multivariate adaptive regression spline, and M5 model tree models
KİŞİ, Özgür; PARMAR, Kulwinder; SONI,Kirti; DEMİR, Vahdettin (Springer Netherlands, 2017)This study investigates the applicability of three different soft computing methods, least square support vector regression (LSSVR), multivariate adaptive regression splines (MARS), and M5 Model Tree (M5-Tree), in forecasting ... -
Obtaining the Manning roughness with terrestrialremote sensing technique and flood modeling using FLO-2D: A case study Samsun from Turkey
DEMİR, Vahdettin; ÜLKE KESKİN, Aslı (Geofizika, 2020-09-09)Flooding is one of the most catastrophic events among the wide spectrum of natural disasters that impact human communities. The identification of floodprone areas and the probability of occurrence, or estimated return ... -
Trend Analyses of Meteorological Variables and Lake Levels for Two Shallow Lakes in Central Turkey
YAĞBASAN, Özlem; DEMİR, Vahdettin; YAZICIGİL, Hasan (Water, 2020-02-04)Trend analyses of meteorological variables play an important role in assessing the long-term changes in water levels for sustainable management of shallow lakes that are extremely vulnerable to climatic variations. Lake ... -
Water level change of lakes and sinkholes in Central Turkey under anthropogenic effects
DEMİR, Vahdettin; ÜLKE KESKİN, Aslı (Theoretical and Applied Climatology, 2020-08-26)Determining water level changes in lakes is significant for sustainable water supply planning, flood control, water resource management, and economic development with ecosystem sustainability. Trend analysis is a commonly ...
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