人工智能英文版ppt课件.ppt

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1、Artificial intelligence,Can it replace a human brain one day?,Artificial intelligence is to use computers to analog and instead of human brain.The advent of computers has made artificial intelligence a major breakthrough.The computer can not only replace some of the human brain function,but exceed t

2、he human brain greatly in speed and accuracy.It can not only simulate part of analysis and the comprehensive function,but is getting to display a certain characteristics of consciousness.It really became an extension of the human brain.,What is AI?,The exciting new effort to make computers thinks ma

3、chine with minds,in the full and literal sense”(Haugeland 1985),“The art of creating machines that perform functions that require intelligence when performed by people”(Kurzweil,1990),“The study of mental faculties through the use of computational models”(Charniak et al.1985),A field of study that s

4、eeks to explain and emulate intelligent behavior in terms of computational processes”(Schalkol,1990),Systems that think like humans,Systems that think rationally,Systems that act like humans,Systems that act rationally,Views of AI fall into four categories:,What is AI?,AI,Search engines,Labor,Applia

5、nces,Science,What else?,AI,Honda Humanoid Robot,Walk,Turn,Stairs,Turing test(1936),Alan turing（1912-1954）Computers can fool people,people who believe it is not the machine,then it should be called intelligent.,1956,the American scholar McCarthy who is considered the father of artificial intelligence

6、 of organized a Society,many experts and scholars gathered together for a discussion of up to two months.Inviting them to participate in the Summer Dartmouth Artificial Intelligence Research Society.Since then,this field is named artificial intelligence,McCarthy麦卡锡,Birth of AI,McCarthy麦卡锡,Minsky明斯基,

7、Shannon香农,Birth of AI,Simon-1975,Newell-1975,More,Samuel,Selfridge,Solomonff莫尔（Princeton），塞缪尔（IBM），塞尔夫里奇，索罗莫夫（MIT）,Birth of AI,In machine learning,in 1957 Rosenblatt(罗森布拉特)successfully developed Perceptron(感知机);In theorem proving,in 1958 Wang Hao in the IBM-704 machine with a 3-5 minute proved all 2

8、20 theorem“Principia Mathematica”in the relevant propositional calculus;In 1965,Robinson made due to the resolution principle(归结原理);In pattern recognition(模式识别),1959 Selfridge(塞尔福里奇)launched a pattern recognition program;1965 Roberts prepared a distinguished building block construction procedures(可分

9、辨积木构造程序);,The first 10 years of achievement,In terms of problem solving(问题求解):1960 Newell(纽厄尔)compiled a universal problem solver(GPS),can solve 11 different types of problems;In expert systems(专家系统):the results of the 1968 Feigenbaum(费根鲍姆)developed DENDRAL expert system and put into use;In the arti

10、ficial intelligence language(人工智能语言):1960 McCarthy(McCarthy)developed the artificial intelligence language-LISP language.,The first 10 years of achievement,Secondary Translation-Machine Translation the spirit is willing but the flesh is weakthe vodka is good but the meat is rottenCombinatorial explo

11、sion problem(组合爆炸)The fact that a program can find a solution in principle does not means that the program contains any of the mechanisms needed to find it in practice.Perceptron limitations(感知机局限性)A two-input perceptron cannot be trained to recognize when its two inputs are different.,Difficulties(

12、the late1960s),Feigenbaum(费根鲍姆)presented Knowledge Engineering at the 5th IJCAI(International Joint Conference On Artificial Intelligence，国际人工智能联合会议),Knowledge Engineering(1977),Hopfield Neural Networks(Hopfield,霍普菲尔德，1982)Back-propagation algorithm(Rumelhart&McClelland,鲁梅尔哈特，麦克莱伦德 1986)Its the most

13、 common neural network,Neural Networks,Computational Intelligence thriving(90s-now),Artificial Neural Network人工神经网络Genetic Algorithm遗传算法Fuzzy Reasoning模糊推理Ant Colony Algorithm蚁群算法Particle Swarm Optimization粒子群优化Artificial Immune System人工免疫系统,Enthusiasm（狂热）,Computational Intelligence,国际人工智能联合会议,The H

14、istory of AI,May 1997,the U.S.IBMs“Deep Blue”supercomputer beat the world chess champion Garry Kasparov(卡斯帕罗夫).,The great achievements of artificial intelligence,Can it replace a human brain one day?,Altificial intelligence(人工智能)Turing test(图灵测试)pattern recognition(模式识别)expert systems(专家系统)Neural Network(神经网络),Thank you!,