In a narrow sense, fuzzy logic can be defined as a logical system, which is an expansion of multi-valued logic. Whereas in a wider sense it is almost similar with fuzzy sets theory. It is a method for computing based on "degrees of truth or fact" rather than the "true or false" (1 or 0). The idea of fuzzy logic was first proposed by Dr. Lotfi Zadeh of the University of California at Berkeley in the 1965 [65].
4.1 FUZZY LOGIC SYSTEM
A fuzzy logic system (FLS) can be defined as the nonlinear mapping of an input data set to a scalar output data [66]. It works like a way that human brain works. The data are get together and form a number of partial facts or truths which are made aggregate further into higher level of truths. If these truths crosses certain level of
…show more content…
Fuzzy logic is a more sensitive approach without the complexity.
2) Fuzzy logic is flexible: In any given system, it is easy to coat on more functionality without being start from scratch.
3) Fuzzy logic is tolerable about inexact data: In the nature or in any experimental process everything is inexact. Fuzzy logic is made tolerable about all these things.
4) Fuzzy logic is able to model nonlinear functions of random complexity: A fuzzy controller is able to match any kind of input and output values. This process is made mainly easy by adaptive techniques which are available in Fuzzy Logic Toolbox of MATLAB software like Adaptive Neuro-Fuzzy Inference Systems (ANFIS).
5) Fuzzy logic is based on general language: Fuzzy logic allows us to communicate with the system using a common language of human like “If-then”.
4.3 FUNCTION OF FUZZY LOGIC INFERENCE
The function of Fuzzy inference system is to interpret the values from the input vector and using some set of rules, assigns these values to the output vector. This definition is clear from the figure
Information is made from Data that is numerical which is changed and used to make it seem sense. For an example train timetable, the number of trains and how much it weights.
The objective of the neural network is to transform the input to meaningful output. Neural networks are often used for statistical analysis and data modeling. Neural network has many uses in data processing, robotics, and medical diagnosis [2]. From the starting of the neural network there are various types found, but each and every types has some advantages and disadvantages. Deep learning and -neural network software are the categories of artificial neural network. The parallel process also allows ANNs to process the large amount of data very efficiently. The artificial neural network is built with a systematic
Neural networks emulate the human brain’s neurons, which is a mesh-like network of interconnected processing components. This allows the system to process numerous pieces of information at the same time, and can learn to understand patterns within the processes, which it can use to solve related problems on its own. Examples include;
It is observed from Table 8 and Fig.3 that for each of the five data sets, the highest accuracy is achieved by applying NNGe and Simple Logistics on the feature subset by MLBFSS. The proposed algorithm achieves higher accuracy, lower RMSE, smallest number of selected features compared with other feature selection algorithms. So MLBFSS produces comparatively small number of features with high relevance and is faster as it follows filter method.
The generic term for symbolic formal systems like first-order logic, second-order logic and many-sorted logic or infinitary logic.
Logic can be defined as the study of the methods and principles of correct reasoning or arguments. Logic teaches the techniques and methods for the correctness of different kinds of reasoning. It helps to detect errors in reasoning by examining and analyzing the various reasons. Logic investigates and classifies the structure of statements and arguments, both through the study of formal systems of inferences and through the study of arguments in natural language. It deals only with propositions that are capable of being true and false. Modern logic descends mainly from the ancient Greek tradition. All three philosophers; Aristotle, Bertrand Russell, and Immanuel Kant theorized the question of what is logic.
For example, Whitehead and Snow came from different backgrounds and would not have been friends if Cholera did not exist. Additionally, Snow’s map would not have existed if London did not exist. Snow’s map lead to geographical based information systems (GIS) because it took a city and mapped out the number of deaths. GIS allows citizens to view a place and overlay data to find answers. An example of a GIS system is Google Maps because the program takes a map, and overlays data, such as traffic levels, to visually show results. However, the accuracy of the results depends on how frequently the data is
An Expert System is software that uses understanding clarification methods in areas where individuals would generally be checked. Each system is broken down in detailed problem fields. The disadvantage to this system is that the information of the fields is narrow.
}\}$ be the corresponding Fuzzy sets defined by the membership function $ \{\mu _{A}^{1},\mu _{A}^{2},\mu _{A}^{3}, . . .\mu _{A}^{m}\}$. The implication of the form $\left ( A,{T_{i}^{A}} \right )\rightarrow \left ( B,{T_{j}^{B}} \right )$ or $A\epsilon {F_{i}^{A}},B\epsilon {F_{j}^{B}}$ is a Fuzzy Association Rule.\\
I choose logic as one of my logic as one of my central concepts because it is a type of reasoning that is based off principles of validity. Logical reasoning can be divided into two sub categories, Deductive logic and
George J. Kilr and Bo Yuan [32] Fuzzy logic is a way to formalize the human decision capacity of imprecise reasoning, or approximate reasoning. Such type of reasoning represents the human ability to find out the reason approximately and judge
Expert systems are also known as knowledge based systems. These systems rely on a basic set of rules for solving specific problems and are capable of learning. The laws are defined for the system by experts and then implemented using if-then rules. These systems basically imitate the expert’s thoughts in solving the problem. An example of this is a system that diagnosis medical conditions. The doctor would input the symptoms to the computer system and it would then ask more questions if need or give diagnoses. Other examples include banking systems for acceptance of loans, advanced calculators, and weather predictions.
In computing – programming there is almost always more than one solution to a problem and this is where Logical Reasoning used to. The main use of Logical Reasoning is to anticipate the outcomes of the algorithms that are designed to solve a problem, to help select the best solution. Consequently Logical reasoning is the systematic application of rules to problem solving and task completion. These rules could be mathematical, logical, programming, grammatical, engineering, scientific, story construction in fact anybody of rules based around a logical system.
Artificial intelligence techniques are increasingly enriching decision support through means as data delivery, analyzing data trends, providing forecasts, developing data consistency, information providing to the exploiter in the most appropriate forms and suggesting courses of action.
The purpose of this report is to give information on the subject known as Logical reasoning and its use in Computer Science and computers in general. A historical background behind logic and Logical reasoning is firstly given, followed by an overview of the modern subject and the types it’s divided into. The types are then explained. The overlap between the field of logic and that of computer science is also given an explanation. The report ends with a brief overview on the subject and its tie to computer science and computing.