Artificial Intelligence COMP 151
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This 3 page Class Notes was uploaded by Zella Sawayn on Monday October 26, 2015. The Class Notes belongs to COMP 151 at University of the Pacific taught by Staff in Fall. Since its upload, it has received 31 views. For similar materials see /class/229909/comp-151-university-of-the-pacific in ComputerScienence at University of the Pacific.
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Date Created: 10/26/15
COMP151 Introductory Notes Jan 17 2007 Chapter 26 Philosophical Foundations Can Machines Think Can machines fly airplanes y Can machines swim boats and submarines do not swim Conventional de nition in English of the word swim involves the means of locomotion while the de nition ofthe word y does not What does it mean to think To have a conscious mind to some extent of reasoning remembering experiences making rational decisions etc To have or formulate in the mind To exercise the power of reason as by conceiving ideas drawing inferences and using judgment Weak Al Can Machines Act Intelligently The Turing Test computer would need I natural language processing to communicate I knowledge representation to store what it knows or hears I automated reasoning to use recorded information to answer questions and draw new conclusions I machine learning to adapt to new circumstances and to detect and extrapolate patterns passing the Turing test only requires a simulation ofthinking Strong Al Can Machines Really Think consciousness the machine has to be aware of its own mental states and actions phenomenology direct experience the machine has to actually feel emotions intentionality the machine s purported beliefs desires and other representations are actually about something in the real world in ordinary life we never have any direct evidence about the internal mental states of other humans Why should we expect this from machines COMP151 Introductory Notes Jan 17 2007 Searle 1980 No one supposes that a computer simulation ofa storm will leave us all wet Why on earth would anyone in his right mind suppose a computer simulation of mental processes actually had mental processes The Chinese Room Chapter 1 What is Al Systems that think like humans Systems that think rationally cognitive modeling laws of thought logic Systems that act like humans Systems that act rationally The Turing Test rational agent A rational agent is one that acts so as to achieve the best outcome or when there is uncertainty the best expected outcome laws of thought emphasizes correct inferences but this is only part of being a rational agent one way to act rationally is to reason logically to the conclusion that a given action will achieve one s goals and then act on that conclusion however what if there is no provany correctthing to do but something must still be done We will concentrate on general principles of rational agents and on components for constructing them Environment Agent Percepts Sensors Actuators ACtlons COMP151 Introductory Notes Jan 17 2007 Structure of textbook Problem Solving deciding what to do when one needs to think ahead several steps Knowledge and Reasoning representing knowledge about the world how it works what it is currently like and how one s actions might change it and how to reason logically with that knowledge Planning how to use reasoning to decide what to do by constructing plans Uncertain Knowledge and Reasoning reasoning and decision making in the face of uncertain knowledge Learning generating knowledge required for decision making Communicating Perceiving and Acting interaction with the environment We will try to spend equal time on the first ve areas possibly some time on communicating Perceiving and acting are better left for a course in robotics