* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Artificial Intelligence and Robotics
Genetic algorithm wikipedia , lookup
Kevin Warwick wikipedia , lookup
Human-Computer Interaction Institute wikipedia , lookup
Index of robotics articles wikipedia , lookup
Human–computer interaction wikipedia , lookup
Computer Go wikipedia , lookup
Technological singularity wikipedia , lookup
Wizard of Oz experiment wikipedia , lookup
Embodied cognitive science wikipedia , lookup
Computer vision wikipedia , lookup
Artificial intelligence in video games wikipedia , lookup
Intelligence explosion wikipedia , lookup
Philosophy of artificial intelligence wikipedia , lookup
Existential risk from artificial general intelligence wikipedia , lookup
A Multidisciplinary Journal of Scientific Research & Education, 2(4), April-2016, Volume: 2, Issue: 4 Artificial Intelligence and Robotics Ms. Swapnali R Ghadge Department of Computer Engineering, Padmbhushan Vasantdada Patil College of Engineering, Sion, Mumbai-09, Maharashtra Email: [email protected] Abstract: Artificial Intelligence is a branch of Science which deals with helping machines finds solutions to complex problems in a more human-like fashion. Artificial intelligence is exhibited by artificial (man- made, non-natural, manufactured)entity, a system is generally assumed to be a computer. AI systems are now in routine use in economics, medicine, engineering and the military, as well as being built into many common home computer software applications, traditional strategy games like computer chess and other video games. Artificial Intelligence has come a long way from its early roots, driven by dedicated researchers This generally involves borrowing characteristics from human intelligence, and applying them as algorithms in a computer friendly way. A more or less flexible or efficient approach can be taken depending on the requirements established, which influences how artificial the intelligent behavior appears. Intelligence involves mechanisms, and AI research has discovered how to make computers carry out some of them and not others. If doing a task requires only mechanisms that are well understood today, computer programs can give very impressive performances on these tasks. Such programs should be considered ``somewhat intelligent''. It is related to the similar task of using computers to understand human intelligence. Humans throughout history have always sought to mimic the appearance, mobility, functionality, intelligent operation, and thinking process of biological creatures. This field of biologically inspired technology, having the moniker biometrics, has evolved from making static copies of human and animals in the form of statues to the emergence of robots that operate with realistic appearance and behavior. Keywords: EAP, artificial muscles, artificial intelligence, biometrics ha I. INTRODUCTION The term Artificial Intelligence (AI) mean "the science and engineering of making intelligent machines”. Although AI has a strong science fiction connotation, it forms a vital branch of computer science, dealing with intelligent behavior, learning and adaptation in machines. Research in AI is concerned with producing machines to automate tasks requiring intelligent behavior. AI is generally associated with Computer Science, but it has many important links with other fields such as Math’s, Psychology, Cognition, Biology and Philosophy, among many others. Our ability to combine knowledge from all these fields will ultimately benefit our progress in the quest of creating an intelligent artificial being. AI systems are now in routine use in economics, medicine, engineering and the military, as well as being built into many common home computer software applications, traditional strategy games like computer chess and other video games. II. TECHNOLOGY There are many different approaches to Artificial Intelligence, none of which are either completely right or wrong. Some are obviously more suited than others in some cases, but any working alternative can be defended. 32 Over the past five decades, AI research has mostly been focusing on solving specific problems. Numerous solutions have been devised and improved to do so efficiently and reliably. This explains why the field of Artificial Intelligence is split into many branches, ranging from Pattern Recognition to Artificial Life, including Evolutionary Computation and Planning. III. ARTIFICIAL LIFE THROUGH ROBOTICS: Laws of Robotics: 1. A robot may not injure a human being or, through inaction, allow a human being to come to harm. 2. A robot must obey the orders given it by human beings except where such orders would conflict with the first law. 3. A robot must protect its own existence as long as such protection does not conflict with the first or second law. Robotics has been an evolution of the field of automation where there was a desire to emulate biologically inspired A Multidisciplinary Journal of Scientific Research & Education, 2(4), April-2016, Volume: 2, Issue: 4 characteristics of manipulation and mobility. In recent years, significant advances have been made in robotics, artificial intelligence and others fields allowing to make sophisticate biologically inspired robots [Bar-Cohen and Brea zeal]. Using these advances, scientists and engineers are increasingly reverse engineering many animals' performance characteristics. Biologically inspired robotics is a subset of the interdisciplinary field of biomimetic. Technology progress resulted in machines that can recognize facial expressions, understand speech, and perform mobility very similar to living creatures including walking, hopping, and swimming. Further, advances in polymer sciences led to the emergence of artificial muscles using Electro active Polymer (EAP) materials that show functional characteristics remarkably similar to biological muscles. established infrastructure. For this purpose, it is necessary to develop comprehensive understanding of EAP materials' behavior, as well as effective processing, shaping and characterization techniques. The technology of artificial muscles is still in its emerging stages but the increased resources, the growing number of investigators conducting research related to EAP, and the improved collaboration among developers, users, and sponsors are leading to a rapid progress. Biometric robots using EAP: Mimicking nature would significantly expand the functionality of robots allowing performance of tasks that are currently impossible. As technology evolves, great number of biologically inspired robots actuated by EAP materials emulating biological creatures is expected to emerge. The challenges to making such robots can be seen graphically in Figure 2 where humanlike and doglike robots are shown to hop and express joy. Both tasks are easy for humans and dogs to do but are extremely complex to perform by existing robots. Artificial Muscles: Muscles are the key to the mobility and manipulation capability of biological creatures and when creating biomimetic it is essential to create actuators that emulate muscles. The potential to make such actuators is increasingly becoming feasible with the emergence of the electro active polymers (EAP), which are also known as artificial muscles [Bar-Cohen, 2001]. These materials have functional similarities to biological muscles, including resilience, damage tolerance, and large actuation strains. Moreover, these materials can be used to make mechanical devices with no traditional components like gears, and bearings, which are responsible to their high costs, weight and premature failures. The large displacement that can be obtained with EAP using low mass, low power and, in some of these materials also low voltage, makes them attractive actuators. The capability of EAPs to emulate muscles offers robotic capabilities that have been in the realm of science fiction when relying on existing actuators. FIGURE 2: Making a joyfully hopping human-like and dog-like robots actuated by EAP materials are great challenges for biomimetic robots FIGURE 3: An android head and a robotic hand that are serving as biomimetic platforms for the development of artificial muscles. FIGURE 1: A graphic illustration of the grand challenge for the development of EAP actuated robotics – an arm wrestling match against human. Biologically inspired robots: The evolution in capabilities that are inspired by biology has increased to a level where more sophisticated and demanding fields, such as space science, are considering the use of such robots. At JPL, a six-legged robot is currently being developed for consideration in future missions to such planets as Mars. Such robots include the LEMUR (Limbed Excursion Mobile Utility Robot). This type of robot would potentially perform The EAP materials that have been developed so far are still exhibiting low conversion efficiency, are not robust, and there are no standard commercial materials available for consideration in practical applications. In order to be able to take these materials from the development phase to application as effective actuators, there is a need for an 33 A Multidisciplinary Journal of Scientific Research & Education, 2(4), April-2016, Volume: 2, Issue: 4 mobility in complex terrains, sample acquisition and analysis, and many other functions that are attributed to legged animals including grasping and object manipulation. This evolution may potentially lead to the use of life-like robots in future NASA missions that involve landing on various planets including Mars. The details of such future missions will be designed as a plot, commonly used in entertainment shows rather than conventional mission plans of a rover moving in a terrain and performing simple autonomous tasks. Equipped with multifunctional tools and multiple cameras, the LEMUR robots are intended to inspect and maintain installations beyond humanity's easy reach in space with the ability to operate in harsh planetary environments that are hazardous to human. This spider looking robot has 6 legs, each of which has interchangeable end-effectors to perform the required mission (see Figure 4). The axis symmetric layout is a lot like a starfish or octopus, and it has a panning camera system that allows omni-directional movement and manipulation operations. FIGURE 4: A new class of multi-limbed robots called LEMUR (Limbed Excursion Mobile Utility Robot) is under development at JPL IV. MAJOR BRANCHES OF AI Perceptive system A system that approximates the way a human sees, hears, and feels objects Vision system Capture, store, and manipulate visual images and pictures Robotics Mechanical and computer devices that perform tedious tasks with high precision Expert system Stores knowledge and makes inferences Learning system Computer changes how it functions or reacts to situations based on feedback Natural language processing Computers understand and react to statements and commands made in a “natural” language, such as English. Neural network Computer system that can act like or simulate the functioning of the human brain. 34 V. CATEGORIES OF AI AI divides roughly into two schools of thought: Conventional AI. Computational Intelligence (CI) Conventional AI :Conventional AI mostly involves methods now classified as machine learning, characterized by formalism and statistical analysis. This is also known as symbolic AI, logical AI, neat AI and Good Old Fashioned Artificial Intelligence (GOFAI). Methods include: Expert systems: apply reasoning capabilities to reach a conclusion. An expert system can process large amounts of known information and provide conclusions based on them. Case based reasoning Bayesian networks Behavior based AI: a modular method of building AI systems by hand. Computational Intelligence (CI) :Computational Intelligence involves iterative development or learning (e.g. parameter tuning e.g. in connectionist systems). Learning is based on empirical data and is associated with non-symbolic AI, scruffy AI and soft computing. Methods include: Neural networks: systems with very strong pattern recognition capabilities. Fuzzy systems: techniques for reasoning under uncertainty, has been widely used in modern industrial and consumer product control systems. Evolutionary computation: applies biologically inspired concepts such as populations, mutation and survival of the fittest to generate increasingly better solutions to the problem. These methods most notably divide into evolutionary algorithms (e.g. genetic algorithms) and swarm intelligence (e.g. ant algorithms). A. Typical problems to which AI methods are applied:Pattern recognition o Optical character recognition o Handwriting recognition o Speech recognition o Face recognition Natural language processing, Translation and Chatter bots Non-linear control and Robotics Computer vision, Virtual reality and Image processing A Multidisciplinary Journal of Scientific Research & Education, 2(4), April-2016, Volume: 2, Issue: 4 place after the repeated application of the above operators. Artificial evolution (AE) describes a process involving individual evolutionary algorithms; EAs are individual components that participate in an AE. Game theory and Strategic planning VI. CLASSIFICATION OF ARTIFICIAL INTELLIGENCE Classified by design • Symbolic AI – Designers explicitly program all of the AI “knowledge.” • Connectionist AI – Designers “teach” an artificial neural network what the AI needs to “know.” • Evolutionary AI – Designers give the AI the ability to refine itself. VII. APPLICATION Robotics:Robotics is the engineering science and technology of robots, and their design, manufacture, application, and structural disposition. Robotics and AI are often seen as two different fields entirely, robotics being a mechanical engineer in field, and AI being computer science related. Roboboa an artificial dancing python has sensing and small logical capabilities. Symbolic AI:Symbolic AI is a very attractive area of AI with its focus on the Mind's symbolic processing. Perhaps this is because our Minds, besides being very important to us, are both exceedingly familiar and yet also scientifically mysterious. The challenge of having to build mental systems that behave intelligently is an ultimate challenge to many scientists. Computer Scientists use their minds (some of the time at least!) to program the computer with instructions So it can execute tasks. AI programmers write programs to enable the computer to work out itself to various degrees as to what to do. They aim to leave more of their minds on the machine than with 'ordinary' programs. Strength: Working with logical problems. Weakness: Working with imperfect data. Connectionist AI:Connectionist AI systems are large networks of extremely simple numerical processors, massively interconnected and running in parallel. There has been great progress in the connectionist approach, and while it is still unclear whether the approach will succeed, it is also unclear exactly what the implications for cognitive science would be if it did succeed. Strength: Working with imperfect data. Weakness: Working with logical problems. Data Mining • A application that allows to the computer to learn from its environment • Eg. Smart Cars, self-parking cars can parallel park themselves without hitting any other objects around it. Medical:Diagnostic programs Doctors input the symptoms of the patience and the AI helps decide what medications are best. Disease symptoms Medical history Test results of a patient Evolutionary AI:In artificial intelligence, an evolutionary algorithm (EA) is a subset of evolutionary computation, a generic population-based met heuristic optimization algorithm. An EA uses mechanisms inspired by biological evolution, such as reproduction, mutation, recombination, and selection. Candidate solutions to the optimization problem play the role of individuals in a population, and the fitness function determines the quality of the solutions (see also loss function). Evolution of the population then takes 35 A Multidisciplinary Journal of Scientific Research & Education, 2(4), April-2016, Volume: 2, Issue: 4 Video Games:AI You can buy machines that can play master level chess for a few hundred dollars. There is some AI in them, but they play well against people mainly through brute force computation--looking at hundreds of thousands of positions. What you do in the game will determine how the computer reactsx. An enemy see’s your character; the computer’s reaction is to attack your character. Natural Language Understanding, which investigates methods of allowing the computer to comprehend instructions given in ordinary English so that computers can understand people more easily. Expert Systems:- Related Discipline: In artificial intelligence, an evolutionary algorithm (EA) is a subset of evolutionary computation, a generic population-based metaheuristic optimization algorithm. An EA uses mechanisms inspired by biological evolution, such as reproduction, mutation, recombination, and selection. Candidate solutions to the optimization problem play the role of individuals in a population, and the fitness function determines the quality of the solutions (see also loss function). Evolution of the population then takes place after the repeated application of the above operators. Artificial evolution (AE) describes a process involving individual evolutionary algorithms; EAs are individual components that participate in an AE. An Expert System is software that attempts to provide an answer to a problem, or clarify uncertainties .Carisma is an advanced human interactive AI Expert systems are designed to take the place of human experts, while others are designed to aid them. Linguistics - study of language and of languages • Psycholinguistics - language and the mind, models of human language processing • Neurolinguistics language processing • Logic - unambiguous formal language used in representing (unambiguous) meanings neural-level models of Neural Network :Artificial Neural Networks tries to simulate the structure and/or functional Aspects of biological neural networks. Neural Networks are mathematical constructs that emulate the processes people use to recognize patterns, learn tasks, and solve problems. Speech Recognition :In the 1990s, computer speech recognition reached a practical level for limited purposes. Thus United Airlines has replaced its keyboard tree for flight information by a system using speech recognition of flight numbers and city names. It is quite convenient. On the other hand, while it is possible to instruct some computers using speech, most users have gone back to the keyboard and the mouse as still more convenient. Fig :- Expert Systems • Natural Language Processing:- Understanding Natural Language:Just getting a sequence of words into a computer is not enough. Parsing sentences is not enough either. The 36 A Multidisciplinary Journal of Scientific Research & Education, 2(4), April-2016, Volume: 2, Issue: 4 computer has to be provided with an understanding of the domain the text is about, and this is presently possible only for very limited domains. [4]. Buchanan, Bruce G.. Timeline: A Brief History of Artificial Intelligence. http://www.aaai.org/AITopics/pmwiki/pmwiki.php/A ITopics/BriefHistory Computer Vision:The world is composed of three-dimensional objects, but the inputs to the human eye and computer’s TV cameras are two dimensional. Some useful programs can work solely in two dimensions, but full computer vision requires partial three-dimensional information that is not just a set of two-dimensional views. At present there are only limited ways of representing threedimensional information directly, and they are not as good as what humans evidently use. VIII. [5]. Damer, Bruce. "Predicting the Future of AI.” http://www.g4tv.com/screensavers/features/633/Predi cting_the_Future_of_AI.html [6]. Damer, Bruce. "Predicting the Future of AI.” http://www.g4tv.com/screensavers/features/633/Predi cting_the_Future_of_AI.html [7]. Microsoft Corporation, "Artificial Intelligence". Microsoft® Encarta® Online Encyclopedia. a. http://encarta.msn.com/encyclopedia_76156 7118/Artificial_Intelligence.html CONCLUSION We conclude that if the machine could successfully pretend to be human to a knowledgeable observer then you certainly should consider it intelligent. AI systems are now in routine use in various field such as economics, medicine, engineering and the military, as well as being built into many common home computer software applications, traditional strategy games etc. [8]. Minksy, Marvin. "Future of AI Technology." Vol 47, No. 707,Jul 1992 30 http://web.media.mit.edu/~minsky/papers/CausalDiv ersity.html [9]. Bar-Cohen Y. (Ed.), “Electroactive Polymer (EAP) Actuators as Artificial Muscles -Reality, Potential and Challenges,” ISBN0-8194-4054-X, SPIE Press, Vol. PM98,(March 2001), pp. 1-671 AI is an exciting and rewarding discipline. AI is branch of computer science that is concerned with the automation of intelligent behavior. The revised definition of AI is - AI is the study of mechanisms underlying intelligent behavior through the construction and evaluation of artifacts that attempt to enact those mechanisms. So it is concluded that it work as an artificial human brain which have an unbelievable artificial thinking power. [10]. http://ndeaa.jpl.nasa.gov/nasande/yosi/yosibook. html [11]. Bar-Cohen Y. and C. Breazeal (Eds.),“Biologically-Inspired IntelligentRobots,” SPIE Press, Vol. PM122, ISBN0-8194-4872-9 (2003), pp. 1-410 IX. REFERENCES: [12]. http://www.spie.org/web/abstracts/oepress/PM12 2.html [1]. Artificial Intelligence." Encarta. http://encarta.msn.com/encyclopedia_761567118/arti ficial_intelligence.html [2]. Artificial Intelligence. .http://www.danielnewman.com/final/history.html [3]. Buchanan, Bruce G.. “A (Very) Brief History of Artificial Intelligence.” AI Magazine Winter 2005: 59. 37 [13]. http://www.aaai.org/ [14]. http://www-formal.stanford.edu/ [15]. http://insight.zdnet.co.uk/hardware/emergingtech [16]. http://www.genetic-programming.com/