Knowledge Engineering - Intelligent Systems Quiz Level 1

Knowledge-Based Systems (KBS)

• Explicit beliefs are directly represented in the knowledge base, making them easily accessible and clearly defined.
• The knowledge base stores a collection of information, including facts and rules, essential for the system's functioning.
• In rule-based systems, the 'IF' part of a rule specifies conditions that must be met prior to the conclusion.

Components of KBS

• The inference engine processes and locates data based on requests, facilitating decision-making within the knowledge base system.
• Case-based systems utilize case-based reasoning, applying previous cases to solve new problems effectively.
• Knowledge-based systems offer the advantage of providing explanations for their solutions, enhancing user understanding.

Types of Knowledge

• Empirical knowledge primarily comes from perception, forming the basis of evidence and data-driven conclusions.
• Expert systems are a type of knowledge-based system specifically designed to replicate human expertise in specific domains.

Probability and Decision Making

• Drawing a King from a standard deck of cards has a probability of 4/52, indicating the likelihood of an event in probability theory.
• Bayes' theorem includes components like P(A|B), P(B), and P(A), but excludes P(A|C) in calculating conditional probabilities.

Logical Framework

• The first step in the resolution process involves converting facts into first-order logic (FOL), setting the foundation for logical deductions.
• Skolemization is the method used to eliminate existential quantifiers during the resolution process in first-order logic.

Programming and Data

• Prolog is recognized as a declarative programming language frequently used in knowledge-based systems for logic programming.
• A weather dataset recorded a total of 14 days of data, indicating the extent of the dataset for analysis or reference.

Characteristics of KBS

• Knowledge-based systems are defined by their ability to use knowledge representation and provide user interfaces, setting them apart from other systems like database and spreadsheet systems.