نتایج جستجو برای: فازی anfis
تعداد نتایج: 16607 فیلتر نتایج به سال:
به دلیل پیچیده بودن الگوی سه بعدی جریان در اطراف گوشواره ی پل ها، برآورد دقیق تغییرات عمق آبشستگی نسبت به زمان دشوار، و در برخی موارد غیر ممکن می باشد. در این تحقیق، ابتدا تغییرات عمق آبشستگی در اطراف گوشوارهها به صورت آزمایشگاهی تحت شرایط آب زلال مورد بررسی قرار گرفته است و سپس با استفاده از نتایج حاصل از سه روش، وایازی غیر خطی (nlr)، شبکههای عصبی (ann) و سامانه ی منطق فازی-عصبی (anfis)، تغی...
A new speed control approach based on the Adaptive Neuro-Fuzzy Inference System (ANFIS) to a closed-loop, variable speed induction motor (IM) drive is proposed in this paper. ANFIS provides a nonlinear modeling of motor drive system and the motor speed can accurately track the reference signal. ANFIS has the advantages of employing expert knowledge from the fuzzy inference system and the learni...
This paper describes the application of Adaptive Neuro-Fuzzy Inference System (ANFIS) model with SVD for classification of Electrocardiogram(ECG) signals into one of the few known categories, and to arrive at a diagnostic decision regarding the condition of the patient. The proposed architecture is a combination of Singular Value Decomposition (SVD) filtering method and ANFIS model. The ECG sig...
This paper addresses about an approach that suggests for stock portfolio optimization using the combination of Adaptive Neuro-Fuzzy Inference System (ANFIS) and Capital Asset Pricing Model (CAPM). Stock portfolio optimization aims to determine which of the stocks to be added to a portfolio based on the investor’s needs, changing economic and market conditions. In order to construct an efficient...
In this study, artificial neural networks (ANNs) and adaptive neuro-fuzzy inference system (ANFIS) were used to estimate shear stress distribution in streams. The methods were applied to the 145 field data gauged from four different sites on the Sarimsakli and Sosun streams in Turkey. The accuracy of the applied models was compared with the multiple-linear regression (MLR). The results showed t...
Transformer fault diagnosis is an interesting subject for plant operators due to its criticality in power systems. There are several international standards available to interpret power transformer faults based on dissolved gas analysis. In certain cases these standards are not able to provide correct diagnosis. There are several soft computing techniques available for modelling transformer fau...
Modeling of water flow in carbon nanotubes is still a challenge for the classic models of fluid dynamics. In this investigation, an adaptive-network-based fuzzy inference system (ANFIS) is presented to solve this problem. The proposed ANFIS approach can construct an input-output mapping based on both human knowledge in the form of fuzzy if-then rules and stipulated input-output data pairs. Good...
در حال حاضر صنعت بانکداری یکی از بزرگترین صنایع واسط مالی در جهان می باشد. به خاطر اهمیت روز افزون این صنعت می طلبد، رفتارهایی که منجر به بهینه کردن امور مالی بانک می گردد، مورد مطالعه قرار گیرد. قدرت بانک ها به پول هایی است که در آنها سپرده گذاری شده است، این منابع مالی می تواند در پیشرفت و گسترش میزان اعتبار بانک و نیز در به ثمر رساندن هدف های اقتصادی کلان، یک کشور تاثیرگذار باشد. در این تح...
This paper presents a comprehensive study of ANFIS+ARIMA+IT2FLS models for forecasting the weather of Raipur, Chhattisgarh, India. For developing the models, ten year data (2000-2009) comprising daily average temperature (dry-wet), air pressure, and wind-speed etc. have been used. Adaptive Network Based Fuzzy Inference System (ANFIS) and Auto Regressive Moving Average (ARIMA) models based on In...
This paper presents a hybrid adaptive network based fuzzy inference system (ANFIS), computer simulation and time series algorithm to estimate and predict electricity consumption estimation. The difficulty with electricity consumption estimation modeling approach such as time series is the reason for proposing the hybrid approach of this study. The algorithm is ideal for uncertain, ambiguous and...
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