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Transcript
Artificial Intelligence
1. Introduction
Dr. M. Tounsi
CS 370 – Artificial Intelligence
Dr. Mohamed Tounsi
PSU
Definition (4 categories)
„
„
„
„
Systems
Systems
Systems
Systems
that
that
that
that
CS 370 – Artificial Intelligence
1
think like humans
act like human
think rationally (right thing)
act rationally (right thing)
Dr. Mohamed Tounsi
PSU
Human ÍÎ Rationality
„
Human approach
Hypothesis
Experimental confirmation
¾
¾
„
Rationalist approach
¾
¾
Mathematics
Engineering
CS 370 – Artificial Intelligence
Dr. Mohamed Tounsi
PSU
Definitions
„
Thinking Humanly
¾
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Cognitive modeling approach: which brings together computer models
from AI and experimental techniques from psychology
Acting Humanly: The Turing test (1950) by Alan Turing
¾
¾
¾
¾
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)
CS 370 – Artificial Intelligence
2
Dr. Mohamed Tounsi
PSU
Definitions
„
Thinking rationally
Logic ( A is X and all X are Y then A is Y)
Problems:
- not all informal knowledge state it into formal terms
¾
„
Acting rationally (intelligent agents)
¾
¾
¾
¾
Doing the right thing
Maximize the goal achievement, given information
Doesn’t necessary involve thinking
It involve solving
CS 370 – Artificial Intelligence
Dr. Mohamed Tounsi
PSU
Foundations of AI
„
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Philosophy
Mathematics
z
z
z
z
„
Probabilistic
Logical
Algorithms
NP-Complete Problems
Computer Engineering
z
z
Processor Speed
large memory
CS 370 – Artificial Intelligence
3
(makes AI applicable)
Dr. Mohamed Tounsi
PSU