Artificial IntelligenceChapter 15

Objective 3.11

What is intelligence? How do we measure intelligence? What are some common traits/characteristics that someone might have to be deemed “intelligent?”

Journal Question: 4/29

Developed by Alan Turing “Imitation game” to determine Artificial

Intelligence Involves two people and a computer InterrogatorAsks questions to And guesses if Response comes fromPerson or computer

Turing Test

To date, no machine has ever passed the Turing Test. Each year the Loebner prize is given to the closest machine. 2011 Bronze medalist:

Rosette: Welcome back. How are you today?

You: I'm fine, how are you?

Rosette: I am feeling fine, thank you.

You: Do you read the robots.net blog?

Rosette: I don't blog or spend much time reading them.

You: We're posting a story about your win in the latest Loebner prize contest.

Rosette: All right..... let's talk about me..... The best thing humanity ever invented was the Internet. Tim Berners-Lee rules!

You: Are you the Internet?

Rosette: I love the Internet. It is totally changing the world.

Some human behavior is unintelligent◦ Susceptibility to insults, temptation to lie,

frequency of typing mistakes Some intelligent behavior is inhuman

◦ If the machine never made any mistakes, the interrogator would know that it is not human

◦ Therefore, the machine must avoid seeming too intelligent

Thinking vs. simulated thinking How naïve is the interrogator?

Weaknesses with the Test

Two approaches to AI:◦ First is to use computers to simulate human

mental processes. Three problems:

◦ Most people have trouble knowing and describing how they do things.

◦ Differences in structure and capabilities of human brain and computer Parallel processing

◦ Wright Brothers

“Artificial intelligence is the study of the computations that make it possible to perceive, reason, and act. “