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Artificial Intelligence

Artificial Intelligence. What is AI?. Turing’s definition Are we there yet? Eliza (the original) Alice Joan. Our Working Definition of AI. Artificial intelligence is the study of how to make computers do things that people are better at or would be better at if:.

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Artificial Intelligence

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  1. Artificial Intelligence

  2. What is AI? • Turing’s definition • Are we there yet? • Eliza (the original) • Alice • Joan

  3. Our Working Definition of AI Artificial intelligence is the study of how to make computers do things that people are better at or would be better at if: • they could extend what they do to a World Wide • Web-sized amount of data, and • not make mistakes.

  4. A Time Line View the time line

  5. The Origins of AI Hype 1950 Turing predicted that in about fifty years "an average interrogator will not have more than a 70 percent chance of making the right identification after five minutes of questioning". 1957 Newell and Simon predicted that "Within ten years a computer will be the world's chess champion, unless the rules bar it from competition."

  6. The Key Components • Perception • Knowledge • Reasoning • Language • Moving around

  7. Image Perception 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

  8. Image Perception

  9. Image Perception http://www.youtube.com/watch?v=t2fjcmPII30&feature=related http://www.pcworld.com/article/224007/google_wont_release_awesome_facial_recognition_app.html

  10. But We’re Still Ahead http://www.captcha.net/

  11. But What About Knowledge? • Why do we need it? Find me stuff about dogs who save people’s lives. • How can we represent it and use it? • How can we acquire it?

  12. But What About Knowledge? • Why do we need it? Find me stuff about dogs who save people’s lives. Two beagles spot a fire. Their barking alerts neighbors, who call 911. • How can we represent it and use it? • How can we acquire it?

  13. Even Children Know a Lot A story described in Charniak (1972): Jane was invited to Jack’s birthday party. She wondered if he would like a kite. She went into her room and shook her piggy bank. It made no sound.

  14. Even Children Know a Lot A story described in Charniak (1972): Jane was invited to Jack’s birthday party. She wondered if he would like a kite. She went into her room and shook her piggy bank. It made no sound. Replace “kite” by “theorem”, “war”, “water”, … Replace “piggy bank” by “pillow”, “teddy bear”, “cat”, … Replace “sound” by “squeak”, “dinner”, “fun”, …

  15. We Divide Things into Concepts • What’s a party? • What’s a kite? • What’s a piggy bank?

  16. What is a Concept? Let’s start with an easy one: chair

  17. What is a Concept? Let’s start with an easy one: chair Merriam Webster: Chair: a seat … Seat: a special chair …

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