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Wyszukujesz frazę "Fuzzy sets" wg kryterium: Temat


Tytuł:
Recent soft computing methods in software reliability engineering
Autorzy:
Albeanu, G.
Duda, G.
Powiązania:
https://bibliotekanauki.pl/articles/2069529.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
fuzzy sets
intuitionistic fuzzy sets
intuitionistic fuzzy numbers
subjective data analysis
Opis:
This paper presents recent approaches in soft computing to manage imprecision and uncertainty which appear in software reliability engineering. Firstly, recent approaches like imprecise probabilities, generalized intervals, fuzzy sets and intuitionistic-fuzzy sets are shortly described, and the usage of intuitionistic fuzzy numbers for system reliability computation is shown. Intuitionistic-fuzzy approaches for software reliability growth models are proposed and experimental results are given.
Źródło:
Journal of Polish Safety and Reliability Association; 2011, 2, 1; 1--10
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fuzzy modal operators and their applications
Autorzy:
Radzikowska, A. M.
Powiązania:
https://bibliotekanauki.pl/articles/384429.pdf
Data publikacji:
2017
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
modal operator
fuzzy sets
approximation operators
intuitionistic fuzzy sets
linguistic hedge
Opis:
In this paper we present some fuzzy modal operators and show their two possible applications. These operators are fuzzy generalizations of modal operators well-known in modal logics. We present an application of some compositions of these operators in approximations of fuzzy sets. In particular, it is shown how skills of candidates can be matched for selecting research projects. The underlying idea is based on the observation that fuzzy sets approximations can be viewed as intuitionistic fuzzy sets introduced by Atanassov. Distances between intuitionistic fuzzy sets, proposed by Szmidt and Kacprzyk, support the reasoning process. Also, we point out how modal operators are useful for representing linguistic hedges, that is terms like “very”, “definitely”, “rather”, or “more or less”.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2017, 11, 1; 10-20
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chosen problems of modelling engineering design process
Autorzy:
Kutschenreiter-Praszkiewicz, I.
Powiązania:
https://bibliotekanauki.pl/articles/117902.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Promocji Wiedzy
Tematy:
engineering design
fuzzy sets
uncertainty
Opis:
An overview of the various models for engineering design process was presented. General Design Theory, Basic Model, Real Design Model were described. Type-2 fuzzy sets implementation on engineering design process was described.
Źródło:
Applied Computer Science; 2006, 2, 2; 141-148
1895-3735
Pojawia się w:
Applied Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fuzzy logic in indoor position determination system
Autorzy:
Socha, M.
Górka, W.
Kostorz, I.
Powiązania:
https://bibliotekanauki.pl/articles/375840.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
WiFi
indoor location
fuzzy sets
Opis:
The article outlines how to use the convergence of collections to determine the position of a mobile device based on the WiFi radio signal strength with the use of fuzzy sets. The main aim is the development of the method for indoor position determination based on existing WiFi network infrastructure indoors. The approach is based on the WiFi radio infrastructure existing inside the buildings and requires operating mobile devices such as smartphones or tablets. An SQL database engine is also necessary as a widespread data interface. The SQL approach is not limited to the determination of the position but also to the creation of maps in which the system dening the position of the mobile device will operate. In addition, implementation issues are presented along with the distribution of the burden of performing calculations and the benets of such an approach for determining the location. The authors describe how to decompose the task of determining the position in a client-server architecture.
Źródło:
Theoretical and Applied Informatics; 2015, 27, 2; 1-15
1896-5334
Pojawia się w:
Theoretical and Applied Informatics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Probability of the Fuzzy Events and its Application in Some Economic Problems
Prawdopodobieństwo zdarzenia rozmytego i jego zastosowanie w problemach ekonomicznych
Autorzy:
Gerstenkorn, Tadeusz
Mańko, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/904818.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
fuzzy sets
intuitionistic fuzzy sets
fuzzy event
probability of fuzzy event
application of probability of fuzzy event
Opis:
In the paper we present some conceptions of probability of fuzzy events, especially of intuitionistic fuzzy events and discuss them in one perspective and show the utility and helpfulness of using the probability calculus to a valuation of some economic situations. Section 1. Introduction. Probability of fuzzy events according to the idea of L.A. Zadeh. Section 2. Intuitionistic fuzzy sets of K. Atanassov. Section 3. Intuitionistic fuzzy event (IFE) and its probability according to the results of T. Gerstenkorn and J. Mańko. Section 4. Probability of IFE by using the theorems of decomposition and extension principle of D. Stoyanova. Section 5. Probability of IFE according to the ideas of E. Szmidt and J. Kacprzyk. Section 6. A large example showing utility and helpfulness of using a probability calculus to evaluation of some economic problems. A comparison of different results by using different methods of probability proposals. Section 7. Final remarks
Praca ma ukazać zastosowanie prawdopodobieństwa zdarzenia rozmytego do oceny pewnych sytuacji ekonomicznych. W części wstępnej artykułu zarysowano ogólną ideę tak zwanego zbioru rozmytego wprowadzoną do nauki i praktyki przez L.A. Zadeha w 1965 r. Koncepcja ta wyrosła na podstawie rozwijającej się od początków XX wieku logiki wielowartościowej przy wybitnym wkładzie w tej dziedzinie polskich uczonych. Zainteresowanie tą teorią w Polsce było i jest duże, i to podniesiono w rozdziale 1. W rozdziale 2 omówiono pewne uogólnienie teorii Zadeha zaproponowane przez K. Atanassova. Ukazano zalety wprowadzenia do rozważań oprócz tzw. funkcji przynależności także funkcji nieprzynależności elementu do pewnego zbioru, a w konsekwencji pojęcia tzw. marginesu niepewności, co odpowiada wielu sytuacjom spotykanym w praktyce. Zilustrowano to przykładami. Zbiory tak scharakteryzowane nazywa się intuicjonistycznymi rozmytymi lub dwoisto rozmytymi. Rozdział 3 omawia prawdopodobieństwo zdarzenia rozmytego na podstawie prac własnych Rozdziały 4 i 5 przedstawiają inne koncepcje prawdopodobieństwa niedawno zaproponowane. Rozdział 6 stanowi ilustrację sposobu obliczenia prawdopodobieństwa według różnych koncepcji w odniesieniu do problematyki ekonomicznej. Daje to obraz zalety prognozowania opartego na wiedzy. Rozdział 7 zawiera uwagi końcowe.
Źródło:
Acta Universitatis Lodziensis. Folia Oeconomica; 2013, 286
0208-6018
2353-7663
Pojawia się w:
Acta Universitatis Lodziensis. Folia Oeconomica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The sensitivity of the SERVQUAL score to the choice of the fuzzy conversion scale
Wrażliwość wskaźnika SERVQUAL na wybór rozmytej skali konwersji
Autorzy:
Jefmański, Bartłomiej
Powiązania:
https://bibliotekanauki.pl/articles/424756.pdf
Data publikacji:
2017
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
fuzzy sets
fuzzy numbers
fuzzy scales
fuzzy SERVQUAL
Opis:
The Fuzzy SERVQUAL method enables to assess the service quality when the measurement results of the performance perception and expectations are expressed in the form of fuzzy numbers. The measurement results expressed in the form of fuzzy numbers are the results of applying the fuzzy conversion scales which are the most popular form of fuzzy scales. Fuzzy conversion scales assume that their points are expressed in the form of fuzzy numbers. The choice of fuzzy number parameters which describe the various points of measurement scales is most often subjective. The aim of the article is to assess the impact of the choice of the fuzzy conversion scale on the stability of the assessment results of the ser-vice quality using the fuzzy SERVQUAL method. The stability assessment was made both for the individual dimensions and the overall SERVQUAL score. The results of employee satisfaction surveys of the West Pomeranian Province local government were used for the purpose of the assessment. The results suggest that there is no significant impact of the form of fuzzy conversion scales on the stability of the assessment results of the service quality us-ing the fuzzy SERVQUAL method.
Źródło:
Econometrics. Ekonometria. Advances in Applied Data Analytics; 2017, 3 (57); 59-71
1507-3866
Pojawia się w:
Econometrics. Ekonometria. Advances in Applied Data Analytics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multi - criteria decision making using fuzzy preference relations
Autorzy:
Borzęcka, H.
Powiązania:
https://bibliotekanauki.pl/articles/406292.pdf
Data publikacji:
2012
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
fuzzy sets
optimization
Pareto-optimal set
Opis:
When dealing with multi-criteria decision making problems, the concept of Pareto-optimality and Pareto-dominance may be inefficient (e.g. generally multiple solutions exist), especially when there is a large number of criteria. Our paper considers the fuzzy multi-criteria decision making problem based on Zadeh’s linguistic approach to P-optimality and P-dominance. The construction, analysis and application of a model of multi-criteria decision making using a fuzzy preference relation are considered. The paper is dedicated to the problem of modeling preferences in terms of fuzzy binary relations and provides an introduction to the important problem of forming fuzzy preference relations to analyze models of multi-attribute decision making. The key features of the multi-criteria evaluation, comparison, choice and ordering of alternatives in a fuzzy environment using fuzzy preference relations have been introduced.
Źródło:
Operations Research and Decisions; 2012, 22, 3; 5-21
2081-8858
2391-6060
Pojawia się w:
Operations Research and Decisions
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fuzzy Controller for Simplified Model of Mobile Vehicle Steering Booster
Autorzy:
Koleda, Peter
Naščák, Ľubomir
Hrčková, Mária
Magdolinič, Róbert
Powiązania:
https://bibliotekanauki.pl/articles/2064614.pdf
Data publikacji:
2021
Wydawca:
STE GROUP
Tematy:
automobile booster
fuzzy sets
fuzzy controller
speed control
Opis:
The article is aimed on the possibility of fuzzy control of an experimental device that represents the simplified model of automobile steering booster. The main part of model consists of a graphical unit illustrating the control of speed and supporting torque. Based on the structure of fuzzy controller, various counts and configurations of fuzzy sets were defined, whereby the relevant results were achieved by their application on controlled system.
Źródło:
Multidisciplinary Aspects of Production Engineering; 2021, 4, 1; 40--50
2545-2827
Pojawia się w:
Multidisciplinary Aspects of Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Fuzzy Model for Assessing Risk of Occupational Safety in the Processing Industry
Autorzy:
Tadic, D.
Djapan, M.
Misita, M.
Stefanovic, M.
Milanovic, D. D.
Powiązania:
https://bibliotekanauki.pl/articles/90316.pdf
Data publikacji:
2012
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
occupational safety
risk assessment
uncertainty
fuzzy sets
Opis:
Managing occupational safety in any kind of industry, especially in processing, is very important and complex. This paper develops a new method for occupational risk assessment in the presence of uncertainties. Uncertain values of hazardous factors and consequence frequencies are described with linguistic expressions defined by a safety management team. They are modeled with fuzzy sets. Consequence severities depend on current hazardous factors, and their values are calculated with the proposed procedure. The proposed model is tested with real-life data from fruit processing firms in Central Serbia.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2012, 18, 2; 115-126
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pomiędzy TAK a NIE czyli o rozmytym charakterze pojęć, metod i kategorii
Between the yes and the no – on fuzzy character of concepts, methods and categories
Autorzy:
Bogocz, Danuta
Powiązania:
https://bibliotekanauki.pl/articles/452989.pdf
Data publikacji:
2012
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki
Tematy:
zbiór rozmyty
ubóstwo
ranking
fuzzy sets
poverty
Opis:
W pracy przedstawiono garść rozważań nad rozmytym podejściem do analizy niektórych zjawisk, wynikającym z nieostrych granic definiujących dotyczące ich pojęcia. W celu lepszego zobrazowania rozmytego charakteru stosowanych procedur oraz ich wyników wykorzystano przykład empiryczny.
The paper presents an investigation within the subject of fuzzy methodology concerning some phenomena, which is the consequence of their fuzzy nature. In order to illustrate some fuzzy procedures and their results an empirical example is included.
Źródło:
Metody Ilościowe w Badaniach Ekonomicznych; 2012, 13, 1; 49-57
2082-792X
Pojawia się w:
Metody Ilościowe w Badaniach Ekonomicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multi-criteria simulation model for determining dengue outbreaks
Autorzy:
Jakubowski, Piotr
Erandi, Hasitha
Mahasinghe, Anuradha
Perera, Sanjeewa
Ameljańczyk, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/1839259.pdf
Data publikacji:
2020
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
climate data
mobility
fuzzy sets
Pareto optimization
Opis:
In this study, we develop a multi-criteria model to identify dengue outbreak periods. To validate the model, we performed a simulation using dengue transmission-related data in Sri Lanka’s Western Province. Our results indicated that the developed model can be used to predict a dengue outbreak situation in a given region up to one month in advance.
Źródło:
Computer Science; 2020, 21 (3); 353-370
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improving of Business Planning Using the Method of Fuzzy Numbers
Autorzy:
Kostetska, Iryna
Powiązania:
https://bibliotekanauki.pl/articles/465544.pdf
Data publikacji:
2016-09-15
Wydawca:
Akademia Leona Koźmińskiego w Warszawie
Tematy:
business planning
triangular numbers
fuzzy sets
profit
Opis:
Purpose: Summarize the experience of using modern methods in the business plan with the application of economic and mathematical modeling. Methodology: Theoretical and methodological basis of the study is the basic principles of economic theory, agricultural economics and scientific research of leading home and foreign scholars on the theory of planning. Originality: This further justifies business planning processes in agriculture from the standpoint of raising economic protection of farmers. The methodology for assessing farm income for planned indicators through the application of fuzzy numbers method in business planning is improved.
Źródło:
Journal of Management and Business Administration. Central Europe; 2016, 3; 67-61
2450-7814
Pojawia się w:
Journal of Management and Business Administration. Central Europe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Justification of RFID implementation. A case study of white goods manufacturer
Autorzy:
Gladysz, B.
Nalepa, K.
Santarek, K.
Powiązania:
https://bibliotekanauki.pl/articles/407105.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
technology assessment
RFID
SCOR
TOPSIS
fuzzy sets
Opis:
Radio Frequency Identification (RFID) is a rapidly emerging technology with a wide range of impact and still not fully exploited potential applications. The impact of RFID is not limited to the area of its direct application. There are many possible benefits to be gained from RFID application, but it must be preceded with careful analysis as its implementation is not always reasonable. A new method for an assessment of RFID technology was presented and explained on the case of a white goods manufacturer. There was a lack of such a method allowing for relatively quick and flexible assessment, which is important for decision makers, who do not want to become involved in very sophisticated and time-consuming analysis at the early stage of decision making. The method supports early phases of decision making related to RFID implementation. Conclusions derived from the analysis of the case study confirmed that the method applied allows for rationalizing decision making and answers whether RFID could generate strategic advantage, in which area RFID should be applied, how RFIDsupported processes will be executed and what benefits would be expected. previous papers focused only on answering specific questions from the above list, without showing a holistic approach. the approach to answer questions about execution of processes and benefits was not considered earlier at all. The paper illustrates details of using a new method of an assessment of RFID technology (ART) using a real industrial example.
Źródło:
Management and Production Engineering Review; 2017, 8, 4; 91-104
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An effects evaluation of ERP APS system implementation in the uncertain terms with using fuzzy modeling and inference
Autorzy:
Ważna, L.
Bach, I.
Banaszak, Z.
Powiązania:
https://bibliotekanauki.pl/articles/118233.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Promocji Wiedzy
Tematy:
enterprise resources
planning systems
modeling
fuzzy sets
fuzzy inference
Opis:
In the paper the approach to forecasting of selected manufacturing company indexes from ERP APS system implemen tation that makes the element of efficiency evaluation procedure of pl anned ERP APS system implementation undertaking in a SME is presented. The approach proposed takes into account the present state of enterprise preparation for implementation with existing implementation constraints and uses data from the earlier implementation of the given system with adoption of fuzzy modeling and inference.
Źródło:
Applied Computer Science; 2006, 2, 2; 105-115
1895-3735
Pojawia się w:
Applied Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Conditions with aggregates evaluated using gradual numbers
Autorzy:
Lietard, L.
Rocacher, D.
Powiązania:
https://bibliotekanauki.pl/articles/970944.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
fuzzy sets
fuzzy condition
linguistic quantifier
quantified statement
aggregate
Opis:
This paper is devoted to the evaluation of conditions involving aggregates in the context of flexible querying of relational databases. An example of such a condition is "the maximum salary of young employees is high", where the aggregate max applies to a fuzzy set of salaries. At first, we consider the evaluation of quantified statements where the aggregate count (the cardinality) is implicitly used. We extend this result to conditions involving the aggregates average, maximum or minimum. The contribution of this paper is to propose a new theoretical background for their evaluations based on an arithmetic on gradual numbers (Nƒ,Zƒ,Qƒ).
Źródło:
Control and Cybernetics; 2009, 38, 2; 395-417
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł

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