What is Fuzzy Logic in Artificial Intelligence?

fuzzy logic digital thakur

What Is Fuzzy Logic In Artificial Intelligence


We may encounter circumstances in our daily lives where we cannot tell if a state is genuine or false. Something is described as “fuzzy” if it is unclear or hazy. AI’s use of fuzzy logic allows for a lot of thought flexibility. This essay will examine this logic and how Artificial Intelligence uses it.


What is fuzzy logic?

A many-valued logic type called fuzzy logic is described as having fluctuating truth values that range from 0 to 1. It is the handle on the imperfect truth. We can come across a situation in real life where we cannot tell if a statement is true or false. Fuzzy logic offered beneficial flexibility for reasoning at the time.

The fuzzy logic approach helps in problem-solving by incorporating all available data. The best decision is then possible, given the input. The FL approach simulates human decision-making by considering every scenario between the digital values T and F.


Understanding the concept of fuzzy logic

Fuzzy logic was created through research into multivalued reason. Standard logic deals with sets that include objective or relative definitions, such as “tall,” “large,” or “beautiful,”. In contrast, fuzzy logic deals with sets that include subjective or relative statements, such as “Is this thing green?” This attempts to mimic how people evaluate circumstances and form opinions, depending on ambiguous or incorrect values rather than unflinching truth.

These structures allow for partial values of the “true” criterion. Fuzzy logic provides truth values ranging from zero to one, unlike classical sense, which requires all propositions to be either true or false. Instead of relying on it, this enables algorithms to draw inferences from data sets on a single discrete data point.

Fuzzy logic is now used in many applications, including artificial intelligence, machine learning, business decision-making, industrial processes, and aeronautical engineering.


The architecture of fuzzy logic

Four main parts make up the fuzzy logic architecture:

1. Rules

It contains all the guidelines and if-then criteria put out by experts to control decision-making. The most recent update to fuzzy theory offers several real-world methods for creating and improving fuzzy controllers. These developments often result in fewer unclear rules.

2. Fuzzification

This procedure transforms input, or crisp integers, into fuzzy sets. Sensors can measure Sharp inputs, providing the results to the control system for additional processing.

3. Inference Engine

The degree of agreement between the fuzzy input and the rules is defined. The input area will determine which rules will be applied. The firing rules are combined to create the control actions.

4. Defuzzification

The process of turning fuzzy sets into distinct values is known as defuzzification. There are numerous options, and the best one must be found using an expert system.


Fuzzy logic in AI

Creating artificial intelligence solutions requires an understanding of fuzzy logic and semantics. Fuzzy logic programming capabilities are growing, and artificial intelligence tools and solutions are becoming more prevalent in the economy and various industries.

The well-known artificial intelligence system Watson from IBM uses fuzzy logic and semantics. Fuzzy logic is used in financial services to enable outputs for investing intelligence using machine learning and other technological systems.

In some sophisticated trading systems, analysts can use fuzzy logic mathematics to help them generate automated buy and sell signals. These tools let investors react to changing market conditions that affect their holdings.


Advantages of Fuzzy logic

  • The structure of fuzzy logic systems is straightforward and basic.
  • Fuzzy logic is frequently used in daily life and business.
  • AI uses fuzzy logic to help regulate machinery and consumer items.
  • Although it might not be the correct reasoning, it is the only one that can be used.
  • Fuzzy logic in data mining helps you manage engineering uncertainty.
  • The system is mainly resilient because exact inputs are not necessary.
  • If the feedback sensor malfunctions, it may be engineered to do so.
  • To improve or alter system performance, it is easy to tweak.
  • It is possible to use inexpensive sensors, which reduces the cost and complexity of the system overall.
  • It provides the best answer to challenging issues.


Disadvantages of Fuzzy logic

  • Fuzzy logic isn’t always precise. Thus the conclusions are interpreted based on presumptions, which could make them controversial.
  • Both machine learning and pattern recognition using neural networks are not possible with fuzzy systems.
  • A fuzzy knowledge-based system needs extensive hardware testing for validation and verification.
  • Determining exact, ambiguous rules and membership functions is challenging.
  • Some individuals conflate the terms fuzzy temporal logic and probability theory.


Examples of Fuzzy logic

Programmable fuzzy sets are a powerful tool that sophisticated software trading models may use to analyse hundreds of stocks in real-time and show the investor the best opportunity. Traders frequently use fuzzy logic to account for a variety of issues. This may result in a more concentrated analysis of trading choices. Additionally, traders might be able to programme a variety of trading rules. Here are two illustrations:

Rule 1

Sell if the relative strength index (RSI) and the moving average are low.

Rule 2

But if both the relative strength index (RSI) and the moving average are high.

Fuzzy logic enables traders to construct their subjective assessments of low and high to produce their automatic trading signals in these straightforward situations.


Fuzzy Logic and Machine Learning

Although they are not the same, fuzzy logic and machine learning are commonly conflated. Machine learning describes computer programmes that solve challenging issues by repeatedly tweaking algorithms to simulate human intelligence. The algorithms must still be coded by humans, even if fuzzy logic is a set of rules and functions that can work with erroneous data sets. In artificial intelligence and challenging issue solving, both are utilised.


Final words

Things that are cloudy or ambiguous are described as fuzzy. Fuzzy logic was instead used in 1965 by professor Lotfi Zadeh at the University of California, Berkeley in California. It is a flexible and straightforward machine learning method that shouldn’t be used when common sense will do.

There are four main parts to the fuzzy logic architecture –

  • Rules
  • Fuzzification
  • Inference Engine
  • Defuzzification

Probability is a mathematical model of ignorance, but fuzzy logic based its mathematical foundation on the idea of ambiguity. A fuzzy set is only utilised in fuzzy controllers, whereas a classical set is extensively used in digital systems design.


Leave a Reply