01_Introduction - 8/24/2011 Foundation of AI Introduction...

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8/24/2011 1 Foundation of AI Introduction Today’s Lecture What is Artificial Intelligence (AI) anyway? - the components of intelligence The Current Frontier - recent achievements Current Challenges - what makes AI problems hard?
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8/24/2011 2 What is Intelligence? Intelligence: - ``the capacity to learn and solve problems'‘ (Webster dictionary) - the ability to think and act rationally Goal in Artificial Intelligence: - build and understand intelligent systems/agents - synergy between philosophy, psychology, and cognitive science computer science and engineering mathematics and physics C B A
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8/24/2011 3 B A Which door would you choose now?
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8/24/2011 4
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8/24/2011 5 What is involved in Intelligence A) Ability to interact with the real world - to perceive, understand, and act - speech recognition, understanding, and synthesis - image understanding (computer vision) B) Reasoning and Planning - modeling the external world - problem solving, planning, and decision making - ability to deal with unexpected problems, uncertainty C) Learning and Adaptation - we are continuously learning and adapting - Also: we want systems that adapt to us! - Major thrust of industry research. What is Artificial Intelligence Rich and Knight : the study of how to make computers do things which, at the moment, people do better. Handbook of AI: the part of computer science concerned with designing intelligent computer systems, that is, systems that exhibit the characteristics we associate with intelligence in human behavior - understanding language, learning, reasoning, solving problems, etc. Dean, Allen and Aloimonos : the design and study of the computer programs that behave intelligently. Russell and Norvig : the study of [rational] agents that exist in an environment and perceive and act.
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8/24/2011 6 Different Approaches I Building exact models of human cognition • view from psychology and cognitive science II The logical thought approach • emphasis on ``correct'' inference
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01_Introduction - 8/24/2011 Foundation of AI Introduction...

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