Pragmatic, to define how a formalism of knowledge
representation forms a meaningful sentence
Knowledge model is used to represent knowledge that is
declarative with specific and definitive meaning. A declarative
sentence that fulfills all 3 aspects (syntax, semantic, and
pragmatic) can be used to establish knowledge representation
using several formalism [3]:
1. Semantic Network, such as ontology, IS-A link, and On
Concept Algebra
2. Logic-based, such as First-Order Logic and fuzzy logic
3. Frame, to store knowledge acquisition from NLP
(Natural Language Processing)
4. Production System, such as Rule-based (IF-THEN)