chapter 4 Flashcards
what’s knowledge?
Knowledge is facts about the real world entities and the relationship between them
what’s knowledge base agent?
use logical reasoning, learn new fact and deduce an action
what knowledge engineering?
the process of building a knowledge base that extracting from human expert
what is knowledge engineer?
someone who investigates a particular domain, determines what concepts are important in that domain, and creates a formal representation of the objects and relations in the domain.
the main task of knowledge engineer
KA,KR,KB
Sentences are expressed in a (formal)________
knowledge representation (KR) language
_______is the process of constructing new sentences from existing facts in the KB
Reasoning
_______is formal language representation and conclusion easily be drawn.
Logic
list Components of formal logic
inference, reasoning, syntax and semantic
what are the fundamental type of logic
propositional and predicate logic
what is the difference b/n formal language and natural language?
formal language overcome ambiguity where us natural language not always well defined.
what are the terminology of propositional logic
valid, satisfiable, unsatisfiable, entailment and derivation.
______represent any kind of situation that are expressed in natural language.
First order logic
_______is used to relate one object with another
predicate
________Important to increase generalization capability of KB
Variable
