CS50 Notes

01 Knowledge

Representing information and drawing inferences from it.

Basic terminology

• knowledge-based agents

  agents that reason by operating on internal representations of knowledge

• sentence

  an assertion about the world in a knowledge representation language

• model

  assignment of a truth value to every propositional symbol (a “possible world”)

• knowledge base

  a set of sentences known by a knowledge-based agent

• inference

  the process of deriving new sentences from old ones