Page 236 - DMGT505_MANAGEMENT_INFORMATION_SYSTEM

Unit 12: Intelligent Techniques

Notes
Did u know? Factual knowledge describes the characteristics and important attributes of
objects in the system.

Deployment

In the deployment phase the developer installs the system for routine use. He also fixes bugs,
updates, and enhances the expert system.

Task Discuss specification building block of expert system.

Self Assessment

Fill in the blanks:

1. An ................................ is a computer system which emulates the decision-making ability of
a human expert.
2. A .................................... system is any system which performs a job or task by applying
rules of thumb to a symbolic representation of knowledge, instead of employing mostly
algorithmic or statistical methods.
3. The ................................ step is where the developer defines what the expert system will do.

4. Expert system development can be modeled as a ................................., where each circuit
adds more capabilities to the system.

12.2 Fuzzy Logic Systems

Fuzzy Logic Systems are defined as computer-based systems that can access data that are
incomplete or only partially accurate. These systems can solve unstructured problems with
incomplete knowledge by producing approximate inferences and solutions.
Fuzzy Logic is a technique of reasoning that appears similar human reasoning as it permits for
approximate values and inferences (fuzzy logic) and incomplete data (fuzzy data) rather than
depending only on Crisp data, like binary (yes/no) options.

Fuzzy Logic in Business

Instances of applications of fuzzy logic are various in Japan, but rate in the United States. The
United States has tended to favor by means of AI solutions such as expert systems or neural
networks. Japan has executed many fuzzy logic applications, especially the use of special-purpose
fuzzy logic microprocessors chips, known as fuzzy process controllers.

Example: Fuzzy logic applications in Japan include:

 Riding in subway trains and elevators
 Riding in cars that are guided or supported by fuzzy process controllers
 Trading shares on the Tokyo Stock Exchange by means of a stock-trading program
depending on fuzzy logic

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