Knowledge Representation CH3

Question 1

2 primary concepts in knowledge representation

Answer 1

1. Knowledge
   - refers to the fact of knowing something that has been gained through experienced and learning it.
2. Representation
   - refers to the process of representing what has been gained from the knowledge

Question 2

Types of Knowledge Representation

Answer 2

1. Declarative Knowledge
   - refers to the knowledge that describes our world
2. Procedural Knowledge
   - refers to more complex concepts (how things work or behave)
3. Meta-Knowledge
   - refers to predefined knowledge about things we are aware of
4. Heuristic Knowledge
   - knowledge that experts in specific fields provide after acquiring them after years of experience
5. Structural Knowledge
   - serves as a basic form of knowledge for solving real-world problems

Question 3

Knowledge Representation Techniques

Answer 3

1. Logical Representation
2. Semantic Network Representation
3. Frame Representation (frame based system)
4. Production Rules

Question 4

Logical Representation

Answer 4

• drawing conclusion based on various conditions
  Divided into 2 parts:
  a. Propositional Logic
• The form of true and false
  b. Predicate Logic
• In the form of quantity

Question 5

Semantic Network

Answer 5

a technique for representing knowledge in AI that uses nodes (concepts or objects) and relationships
- easy and simple to understand
- EG google graph

Question 6

Frame Representation

Answer 6

• a record-like structure consisting of a collection of attributes and values to describe an entity
• EG form of a table (database)

Question 7

Production Rules

Answer 7

• also known as rule-based systems, type of AI that uses set of rules to represent knowledge and make decisions
  EG “IF statements”

Question 8

Cycle of Knowledge Representation

Answer 8

1. Perception
2. Learning
3. Knowledge representation and reasoning
4. Planning and execution