First-order fuzzy logic

Studia Logica ◽  
1987 ◽  
Vol 46 (1) ◽  
pp. 87-109 ◽  
Author(s):  
Vil�m Nov�k
Keyword(s):  
Fuzzy Logic ◽  
First Order

scholarly journals First-Order ARMA Type Fuzzy Time Series Method Based on Fuzzy Logic Relation Tables

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
Cem Kocak
Keyword(s):  
Time Series ◽  
Fuzzy Logic ◽  
Stock Exchange ◽  
Life Time ◽  
Fuzzy Time Series ◽  
Moving Averages ◽  
First Order ◽  
Forecasting Method ◽  
Forecasting Performance ◽  
Time Series Method

Fuzzy time series approaches have an important deficiency according to classical time series approaches. This deficiency comes from the fact that all of the fuzzy time series models developed in the literature use autoregressive (AR) variables, without any studies that also make use of moving averages (MAs) variables with the exception of only one study (Egrioglu et al. (2013)). In order to eliminate this deficiency, it is necessary to have many of daily life time series be expressed with Autoregressive Moving Averages (ARMAs) models that are based not only on the lagged values of the time series (AR variables) but also on the lagged values of the error series (MA variables). To that end, a new first-order fuzzy ARMA(1,1) time series forecasting method solution algorithm based on fuzzy logic group relation tables has been developed. The new method proposed has been compared against some methods in the literature by applying them on Istanbul Stock Exchange national 100 index (IMKB) and Gold Prices time series in regards to forecasting performance.

scholarly journals Syntactic characterizations of classes of first-order structures in mathematical fuzzy logic

2019 ◽  
Vol 23 (7) ◽  
pp. 2177-2186 ◽  
Author(s):  
Guillermo Badia ◽  
Vicent Costa ◽  
Pilar Dellunde ◽  
Carles Noguera
Keyword(s):  
Fuzzy Logic ◽  
First Order ◽  
Mathematical Fuzzy Logic ◽  
Order Structures

scholarly journals Deteksi Kualitas Kuning Telur Ayam Kampung Menggunakan Ekstraksi Ciri Secara Statistika Orde Satu Berbasis Logika Fuzzy

eLEKTRIKA ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 73
Author(s):  
Muhammad Sipan ◽  
Rony Kartika Pramuyanti
Keyword(s):  
Fuzzy Logic ◽  
Egg Yolk ◽  
First Order ◽  
Personal Consumption ◽  
Native Chicken ◽  
Egg Yolks ◽  
Pixel Value ◽  
Chicken Egg Yolk ◽  
Chicken Eggs

<p><em>Chicken eggs have become a basic necessity for Indonesians, both for personal consumption and for business purposes. Eggs that are good or quality can be seen based on the yolk. Both those who are only a day old a week or more than two weeks or those that are not suitable for consumption.</em></p><p><em>Quality egg yolks appear brighter in yellow and there are no stripes or other colors and markings in the yolk. Eggs. From this, the author tries to do research on the detection of quality detection of native chicken egg yolk using Order One Statistical Extraction based on Fuzzy Logic. Feature extraction The first order egg yolk image in this study uses various features, namely variance, skewness, cartulation, entropy and mean. Texture measurements in the first order use statistical calculations based on the original image pixel value for the sole purpose of finding the histogram characteristics of the image.</em></p><p><em>The results of this study are the value of the feature calculation in first order statistics to be used to make the decision whether the egg yolk is suitable for consumption or not. This research is expected to be able to provide insight in determining the quality or absence of native chicken eggs. The first step in this research is to look for data in the form of egg yolks from native chickens, after that we take a picture in the form of an image of egg yolk using the same camera and the same distance as well. So that the image results obtained have the same level of precision. From this image, we then look for the first order statistical value which will be used as a reference in determining the quality of eggs using fuzzy logic.</em></p>

SIMILARITY LOGIC AND TRANSLATIONS

2004 ◽  
Vol 12 (03) ◽  
pp. 257-267 ◽  
Author(s):  
COSTANZA CRISCONIO ◽  
DANIEL DONATO ◽  
GIANGIACOMO GERLA
Keyword(s):  
Fuzzy Logic ◽  
First Order ◽  
Simple Notion

We propose and examine a simple notion of translation in first order logics to give a basis to similarity-based fuzzy logic.

scholarly journals Algorithm Apriori Association Rule in Determination of Fuzzy Rule Based on Comparison of Fuzzy Inference System (FIS) Mamdani Method and Sugeno Method

2016 ◽  
Vol 7 (1) ◽  
pp. 103
Author(s):  
Muhammad Fadli Arif ◽  
Bima Anoraga ◽  
Samingun Handoyo ◽  
Harisaweni Nasir
Keyword(s):  
Fuzzy Logic ◽  
Fuzzy Inference System ◽  
Fuzzy Inference ◽  
Expert Knowledge ◽  
Fuzzy Rule ◽  
Percentage Error ◽  
Inference System ◽  
Rule Based ◽  
Accuracy Measurement ◽  
First Order

<p>The economic stability of a country can be determined from the changes in the rate of inflation. Inflation is measured by the annual percentage change in the Consumer Price Index. Since there exists some uncertainties in the inflation data, fuzzy logic is one of the ways to analyse the data. Decisions in fuzzy logic can be made using the fuzzy rule-based inference system. Fuzzy rule-based inference can be obtained from expert knowledge, but the knowledge from the experts on the working of a system is not always available. Therefore, the use of association rules<em> </em>approach could solve the problem. Using three methods of fuzzy inferences; namely the Mamdani Methods, zero-order Sugeno method, and the first-order Sugeno method, this study was carried out to determine which method fits to predict the general monthly inflation data in Indonesia. The Inflation data were derived from the inflation of foodstuff price, <em>X<sub>1</sub></em>; inflation of food, drinks, cigarettes and tobacco prices, <em>X<sub>2</sub></em>; inflation of housing, water, electricity, gas, and fuel prices, <em>X<sub>3</sub></em>; inflation of clothing price, <em>X<sub>4</sub></em>; inflation of health care price, <em>X<sub>5</sub></em>; inflation of education, recreation, and sports prices, <em>X<sub>6</sub></em>; and inflation of transportation, communication, and financial services prices, <em>X<sub>7</sub></em>. The performance of the three methods was compared using mean squared error (MSE) and mean absolute percentage error (MAPE) as the accuracy measurement to establish the best fuzzy inference method that fits the inflation value. It was found that the most appropriate method which generated the most accurate results to fit the fuzzy inference system to the inflation data was the first-order Sugeno method.</p>

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