scholarly journals Horizontal and Vertical Rule Bases Method in Fuzzy Controllers

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Sadegh Aminifar ◽  
Arjuna bin Marzuki

Concept of horizontal and vertical rule bases is introduced. Using this method enables the designers to look for main behaviors of system and describes them with greater approximations. The rules which describe the system in first stage are called horizontal rule base. In the second stage, the designer modulates the obtained surface by describing needed changes on first surface for handling real behaviors of system. The rules used in the second stage are called vertical rule base. Horizontal and vertical rule bases method has a great roll in easing of extracting the optimum control surface by using too lesser rules than traditional fuzzy systems. This research involves with control of a system with high nonlinearity and in difficulty to model it with classical methods. As a case study for testing proposed method in real condition, the designed controller is applied to steaming room with uncertain data and variable parameters. A comparison between PID and traditional fuzzy counterpart and our proposed system shows that our proposed system outperforms PID and traditional fuzzy systems in point of view of number of valve switching and better surface following. The evaluations have done both with model simulation and DSP implementation.

2021 ◽  
Vol 4 (1) ◽  
pp. 3-16
Author(s):  
Gergely Cs. Mikulai ◽  
László T. Kóczy

In our fast-growing world, we need to create increasingly efficient systems to ensure further growth and sustainability. This also applies to transportation, where a key limitation is the bottle-necks of road network capacity. To eliminate, or at least, to moderate these bottlenecks, they must first be localised. In this case study, a model is proposed to objectively identify the weak points of the road infrastructure in the Western Hungarian region, a typical part of the Hungarian road net-work, based on automated data input. This way, there is no need to visually analyse the road net-work on site, but it is possible to evaluate the available information and suggest efficient measures from the distance. The model is suitable for general application, meaning it can serve other regions or countries as well, and enables macro-level decision-makers to take steps to eliminate those weak points. A fuzzy signature rule base is applied by the authors, which systematically maps and models the various attributes of the road network. The model currently contains more than 20 independent variables as inputs, but they can be easily expanded or replaced if further inputs need to be included.


Due to the huge amount of uncertain data collection, mankind facing a colossal amount and fast data having such a composite configurations. The data can be transact on the web and manually exchanges, interpersonal organizations and through our everyday life exercises. A very helpful result of designing an appropriate Big Data in different zones, for example, medical services, human services, executives and administrators. Managing the Big Data efficiently, new investigation perspective has been secured at this point the viewpoints about huge information (Big Data) requires extra-long stretch innovative interests. The Fuzzy Logic s have been implemented here for Big Data because of their capacities to handle the vagueness and uncertainties in the information. A couple of imaginative approach for Big Data processing is presented previously. To abbreviate the current duties and extant a point of view of further enhancements. We survey the different examinations and concentrated on that there are constrained Fuzzy systems have been adopted in large information (Big Data preparing. We also examine the various advantages of Fuzzy Logic s in large information (Big Data) issues. Therefore in this paper a Fuzzy object-oriented database is designed for Big Data and perform some Fuzzy queries to check the performance of the designed Fuzzy object-oriented database. We focused on the continuously propelled augmentations of Fuzzy sets and their blends in with various contraptions could offer a novel promising planning condition


Author(s):  
Abdul Malek Yaakob ◽  
Shahira Shafie ◽  
Alexander Gegov ◽  
Siti Fatimah Abdul Rahman

AbstractDecision-making environment often encounters complexity along its processes, especially in the context of multidisciplinary scientific research. This can commonly be seen in engineering, computing, finance, astrology and other different areas. It is of great restriction in dealing with the practical problems which have diverse demands and properties. There is a growing body of literature that recognizes the importance of dealing with the complexity in decision making environment. The reliability and the transparency are the dominant feature of the integration of fuzzy network and Z-numbers. However, much of the research up to now has been descriptive in nature of the features. Hence, this proposed method is unique and novel because it offers some interesting insight of dealing with reliability and transparency of information in Z-hesitant fuzzy network decision-making environment. The fuzzy networks have the functionality under rule bases of fuzzy systems where it is recognized by its transparency and precision. The proposed method makes use of fuzzy network with the incorporation of hesitant fuzzy sets to assimilate decision information towards alternatives. For the validation and applicability purposes of the proposed method, the case study of stock evaluation assessed by a number of decision makers has been utilized as a real-world problem. The performance of the proposed method is evaluated respectively by applying the Spearman’s rho correlation. The result shows that the proposed method performs as the established method with the consideration of additional dominant features.


2017 ◽  
Vol 10 (4) ◽  
pp. 1218
Author(s):  
Thaís Oliveira Guimarães ◽  
Mariano Gorki ◽  
Artur A. Sá

A configuração geológica do Litoral Sul de Pernambuco, bem como suas formas de relevo, decorre em grande parte do magmatismo ocorrido no Cretáceo, lhe conferindo uma paisagem bastante distinta das demais áreas do litoral do Estado. A diversidade geológica e suas principais ocorrências estão diretamente relacionadas com a última etapa de fragmentação do antigo continente Gondwana que resultou na formação dos continentes Africano e Sul-americano. Na região afloram rochas da Bacia Sedimentar de Pernambuco, rochas ígneas vulcânicas e plutônicas associadas ao magmatismo do Cretáceo e rochas neoproterzóicas do embasamento cristalino. O trabalho compreende um estudo de caso, onde foram selecionados 13 geossítios, através da metodologia de abordagem qualitativa, tendo como objetivo inicial a descrição, classificação e valoração deste patrimônio geológico, resultando em um inventário do patrimônio geológico dessa região. Trata-se de uma pesquisa classificada como exploratória e explicativa, onde os resultados foram obtidos através de trabalho de campo e pesquisa bibliográfica interdisciplinar, relativa tanto aos elementos das Geociências como das Ciências Sociais, bem como análise qualitativa dos sítios. Diante dos resultados obtidos constatou-se a grande relevância dessa área não só do ponto de vista geológico, mas a todos os valores naturais e socioculturais a ela agregados. Esta conclusão abre precedentes para uma segunda etapa de pesquisas, que compreenderá a elaboração de um diagnóstico mais completo acerca da relevância e vulnerabilidade destes sítios para que sejam futuramente estruturadas estratégias de geoconservação e desenvolvimento local, utilizando como principais ferramentas a popularização das Geociências e o fortalecimento do geoturismo na região.  A B S T R A C TThe geological setting of the southern coast of Pernambuco, as well as its landforms, stems largely from the Cretaceous felsic which provides a very different landscape from the remaining areas of Pernambuco’s coast. Geological diversity and its main occurrences are directly related to the last fragmentation step of the ancient continent Gondwana, which resulted the formation of the African and South American continents. In the region arise sedimentary rocks from the local Sedimentary Basin, volcanic and plutonic igneous rocks associated with Cretaceous felsic, and neoproterozoic rocks from the crystalline. This work comprises a case study, where 13 geosites were selected through a qualitative approach, with the initial goal of description, classification and valuation of their geological patrimony, resulting in an inventory of the geological heritage of the region. It comprises an exploratory and explanatory research, where the results were obtained through fieldwork and interdisciplinary bibliographical research on both Earth and Social Sciences. Eventually, it was noticed the importance of the area, not only from the geological point of view, but also from the natural and social-cultural perspective. The findings opened a second stage of research, which shall include the preparation of a full diagnosis about the importance and vulnerability of these sites to be structured in the future using geoconservation and local development strategies as a main tool for the popularization of Geosciences and strengthening of Geotourism in the region.Keywords: qualitative analyses, geoconservation, geoheritage, Pernambuco, popularization of geosciences, coastal zone.  


2018 ◽  
Vol 3 (7) ◽  
Author(s):  
Natapon Anusorntharangkul ◽  
Yanin Rugwongwan

The objective of this paper is to study local identity and explore the potential for regional resources management and valuation of the historic environment a case study of the north-eastern provinces of Thailand, for guiding the tourism environmental design elements. The point of view has the goal creative integrate tourism model and product development from local identity embedded localism. This concept advocates the philosophy that tourism businesses must develop products and marketing strategies that not only address the needs of consumers but also safeguard the local identity. 


2020 ◽  
Author(s):  
Stéphane Goria ◽  
Louise Dupet ◽  
Maëva Négroni ◽  
Gabriel Sega ◽  
Philippe Arnoux ◽  
...  

BACKGROUND most serious games and other game-based tools are designed as digital games or escape games. They are designed for learning or sometimes in the field of medicine as an aid to care. However, they can also be seen as an aid to research, in our case, to evaluate the advantages and disadvantages of imaging techniques for cancer detection. OBJECTIVE we present a case study of action research on the design of a serious board game intended to consider the advantages and weaknesses of a diagnostic method in a different ways. The goal was to better understand the principles of designing a tool using game or play. METHODS we explicitly implemented another process than gamification to develop a structure reminiscent of the game to highlight the strengths and weaknesses of different imaging techniques from the point of view of the respondents (in this case specialists not directly involved in the project). Based on this feedback and the scientific literature on this subject, we detail the main categories of games and games developed for serious use in order to understand their differences. Concerning the cancer research part to which game contributes, our method is based on questions asked to experts and practitioners of this specialty. RESULTS an expert point of view translation tool in the form of a game has been realized to apprehend a research in a different way. CONCLUSIONS we show with the help of a diagram, some possible design paths leading to this type of design result including two hidden dimensions to consider (the awareness of the game or play by the "player" and his role as a contributor or recipient).


2014 ◽  
Vol 30 (2) ◽  
pp. 113-126 ◽  
Author(s):  
Dominic Detzen ◽  
Tobias Stork genannt Wersborg ◽  
Henning Zülch

ABSTRACT This case originates from a real-life business situation and illustrates the application of impairment tests in accordance with IFRS and U.S. GAAP. In the first part of the case study, students examine conceptual questions of impairment tests under IFRS and U.S. GAAP with respect to applicable accounting standards, definitions, value concepts, and frequency of application. In addition, the case encourages students to discuss the impairment regime from an economic point of view. The second part of the instructional resource continues to provide instructors with the flexibility of applying U.S. GAAP and/or IFRS when students are asked to test a long-lived asset for impairment and, if necessary, allocate any potential impairment. This latter part demonstrates that impairment tests require professional judgment that students are to exercise in the case.


Energies ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 565
Author(s):  
Nikolaj Kaae Kirk ◽  
Clara Navarrete ◽  
Jakob Ellegaard Juhl ◽  
José Luis Martínez ◽  
Alessandra Procentese

To make biofuel production feasible from an economic point of view, several studies have investigated the main associated bottlenecks of the whole production process through approaches such as the “cradle to grave” approach or the Life Cycle Assessment (LCA) analysis, being the main constrains the feedstock collection and transport. Whilst several feedstocks are interesting because of their high sugar content, very few of them are available all year around and moreover do not require high transportation’ costs. This work aims to investigate if the “zero miles” concept could bring advantages to biofuel production by decreasing all the associated transport costs on a locally established production platform. In particular, a specific case study applied to the Technical University of Denmark (DTU) campus is used as example to investigate the advantages and feasibility of using the spent coffee grounds generated at the main cafeteria for the production of bioethanol on site, which can be subsequently used to (partially) cover the campus’ energy demands.


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