Lab 3(expert systems -3)

Question 1

Sources of uncertainty?

Answer 1

Weak implications
Imprecise language
Unknown data
Combining the views of different experts

Question 2

Experts

Answer 2

Experts often have contradictory opinions and produce conflicting rules.

Question 3

Probability

Answer 3

The concept of probability is associated with words like “probably”, “likely”, “maybe”
Probability can be expressed mathematically as a numerical index with a range from 0 to 1

Question 4

Please discuss the difference of probability and fuzzy membership in measuring the uncertainty.

Answer 4

The probability of an event is the proportion of cases in which the event occurs. It’s a scientific measure of chance. It can be expressed mathematically as a numerical index with a range between zero to unity (absolute certainty)

Fuzzy logic is determined as a set of mathematical principles for knowledge representation based on the degree of membership rather than on crisp membership of classical binary logic.