Artificial Intelligence 1. Introduction Dr. M. Tounsi

Definition (4 categories) Systems that think like humans Systems that act like human Systems that think rationally (right thing) Systems that act rationally (right thing)

Human  Rationality Human approach Rationalist approach Hypothesis Experimental confirmation Rationalist approach Mathematics Engineering

Definitions Thinking Humanly Cognitive modeling approach: which brings together computer models from AI and experimental techniques from psychology Acting Humanly: The Turing test (1950) by Alan Turing Imitation Game Operational test for intelligent behavior Computer should be interrogated by a human Computer should possess: Natural language processing (to communicate) – knowledge representation (to store information) – automated reasoning (to answer questions and draw new conclusion) – machine learning (to adapt new circumstances and to detect and extrapolate patterns)

Definitions Thinking rationally Acting rationally (intelligent agents) Logic ( A is X and all X are Y then A is Y) Problems: - not all informal knowledge state it into formal terms Acting rationally (intelligent agents) Doing the right thing Maximize the goal achievement, given information Doesn’t necessary involve thinking It involve solving

Foundations of AI Philosophy Mathematics Probabilistic Logical Algorithms NP-Complete Problems Computer Engineering (makes AI applicable) Processor Speed large memory