Artificial intelligence

Artificial intelligenceArtificial IntelligenceArtificial Intelligence began in the 1960s, the first attempts were mettlesome playing (checkers), theory proving a few simple theories and general problem solving.General problem solving was much to a greater extent difficult than originally anticipated. Researchers were ineffective to tackle problems routinely handled by homo skillfuls. Artificial Intelligence tramp be delimit in galore(postnominal) ways as it depends from which breaker point of clear you tincture at it from. From the intelligence point of view soupy intelligence is to make machines intelligent thus do them act as we people would act. merely artificial intelligence from a research perspective is how to make machines do things people be currently doing better in other words making machines do what we humans can do.Now from a business point of view artificial intelligence is a combination of powerful tools, and methods for using those tools to lick business problems.As for the architectural planming point of view artificial intelligence is the study of symbolic programing, search and problem solving. ingenious Systems dexterous arrangings are defined on bases functional and structural. smart constitutions from a functional perspective are defined based on what the dodge does rather than how it does it.A computer program that behaves like a human unspoiled in some useful ways. (Winston Prendergast, 1984)Nevertheless we can define expert forms on the bases of their structure in many ways depending on which angle we look at it fromProblem area Solve problems efficiently and effectively in a narrow problem area. (Waterman, 1986) typically, pertains to problems that can be symbolically represented (Liebowitz, 1988)Problem difficulty apply expert knowledge to difficult real world problems (Waterman, 1986) solve problems that are difficult decent to require significant human expertness for their solution (Edward Feigenbaum in Harm on King, 1985) Address problems normally impression to require human specialists for their solution (Michaelsen et al, 1985).Performance requirement the office to perform at the level of an expert (Liebowitz, 1988) Programs that mimic the advice-giving capabilities of human experts. (Brule, 1986, p.6) Matches a competent level of human expertise in a particular field. (Bishop, 1986, p.38) back offer intelligent advice or make an intelligent decision about a processing function. (British training processing system Societys Specialist conclave in Forsyth, 1984, pp.9-10) Allows a exploiter to access this expertise in a way similar to that in which he might consult a human expert, with a similar result. (Edwards and Connell, 1989, p.3) pardon reasoning The capability of the system, on demand, to justify its own line of reasoning in a manner directly intelligible to the enquirer. (British Computer Societys Specialist Group in Forsyth, 1984, p.9-10) incorporation of explanation processes (Liebowitz, 1988)Expert Systems from a structural perspective are defined on the bases of how the system functions.Using the programming techniques of artificial intelligence, in particular those techniques developed for problem solving (Dictionary of Computing, 1986)However we can define expert systems on the bases of their structure in many ways depending on which angle we look at it fromUse AI techniques using the programming techniques of artificial intelligence, in particular those techniques developed for problem solving (Dictionary of Computing, 1986)Knowledge component the embodiment within a computer of a knowledge-based component, from an expert skill (British Computer Societys Specialist Group in Forsyth, 1984) a computer based system in which representations of expertise are stored (Edwards and Connell, 1989) The knowledge of an expert system consists of facts and heuristics. The facts constitute a body of training that is widely shared, publicly availab le, and generally agreed upon by experts in the field. (Edward Feigenbaum in Harmon King, 1985) Expert systems are sophisticated computer programs that manipulate knowledge to solve problems (Waterman, 1986)Separate knowledge and control Make domain knowledge explicit and separate from the take a breather of the system (Waterman, 1986).Use inference procedures an intelligent computer program that uses knowledge and inference procedures (Edward Feigenbaum in Harmon King, 1985) The style adopted to attain these characteristics is a rule-based programming style. (British Computer Societys Specialist Group in Forsyth, 1984) Exhibit intelligent behavior by skillful application of heuristics. (Waterman, 1986). The heuristics are mostly private, little rules of good judgment (rules of plausible reasoning, rules of good guessing) that characterize expert-level decision making in the field. (Edward Feigenbaum in Harmon King, 1985) incorporation of ways of handling uncertainty(Liebowitz, 1988)Model human expert Can be thought of as a model of the expertise of the best practitioners of the field. (Edward Feigenbaum in Harmon King, 1985) representation of domain-specific knowledge in the manner in which the expert designates (Liebowitz, 1988) Involving the use of appropriate information acquired previously from human experts. (Dictionary of Computing, 1986)Components of an Expert SystemAn expert system consists of 4 main components which are listed below Knowledge base a representation of the expertise and is usually inputted in IF THEN rules, and are usually put into a database for easy access by the system. Working storage Data which is specific to a problem being solved by the expert system. Inference engine the code at the core of the system which derives recommendations from the knowledge base and problem-specific data in working storage. User embrasure the code that controls the dialog between the user and the system. People and they consist ofDomain e xperts the individual or individuals who currently are experts in solving the problems the system is intended to solve.Knowledge guides the individuals who encode the experts knowledge in a declarative form that can be used by the expert system.Users the individuals who will be consulting with the system to get advice which would have been provided by the expert.Furthermore there are some other optional components that might be added to the system as sub systems and which try to make the expert system more efficient thus making it more powerful and they are. Explanation sub system is used to explain the logic or reason of recommending a solution. Justifier is another name of explanation sub system. Justifier also explains why a solution is recommended or not recommended. Knowledge refining sub system is used to refine the knowledge in the knowledgebase after working every beat over a problem. It works exactly like human beings who analyze their actions and learn from their mi stakes to perform better in the future.Programming Languages Used to Develop Expert SystemsHere are some of the programming languages used to develop expert systems.1. say, developed in the 1950s, is the early programming language powerfully associated with AI. LISP is a functional programming language with procedural extensions. LISP (LISt Processor) was specifically designed for processing heterogeneous lists which is a list of symbols. Features of LISP that made it attractive to AI researchers included Run- time type checking.Higher order functions (functions that have other functions as parameters).Automatic memory management (garbage collection) and an interactive environment.2. The second language strongly associated with AI is PROLOG. PROLOG was developed in the 1970s. PROLOG is based on first order logic. PROLOG is declarative in nature and has facilities for explicitly throttle the search space.3. Object-oriented languages are a class of languages more recently used for A I programming. Important features of object-oriented languages include concepts of objects and messages objects bundle data and methods for manipulating the data sender specifies what is to be done receiver decides how to do it inheritance (object hierarchy where objects inherit the attributes of the more general class of objects)Examples of object-oriented languages are Smalltalk, Objective C, C++. Object oriented extensions to LISP (CLOS Common LISP Object System) and PROLOG (LO Logic Objects) are also used.The Difference between these programming languages and procedural programming languages.According to an article in the Information and Software Technology journal by Alexander Chatzigeorgiou of the Department of Applied Informatics, at the University of Macedonia, the object-oriented approach is known to introduce a significant performance penalty compared to classical procedural programming. For instance, profiling results for embedded applications indicate that C++ program s, apart from being slower than their corresponding C versions, consume significantly more energy (mainly due to the increased instruction count, larger code size and increased number of accesses to the data memory for the object-oriented versions).Example of an Expert System adept of the most recognized expert systems used today by the general public is the online doctor due to the fact that many people use it daily. In brief this expert system is used to diagnose people by asking them what the problem is and then suggesting the actions that they should take which sounds very similar to an expert system where the illness is the problem the recommended actions are the solutions.In this example the website that was studied is www.yourdiagnosis.comIn this expert system there are main components of the expert system and they areThe peopleThe people are separated into three categories and they areThe domain experts who are actually the doctors who provide the data for the system.The kn owledge engineers are the engineers who enter this system in a rule based input for example giving multiple choice questions to diagnose a cold.Do you touch sensation cold. Do you feel hot? .Do you feel normal? System engineer who is the person in charge assembling and managing the system.The user who is the person asking for the diagnoses.The user interfaceThe user interface is the website used by the user to find the diagnoses.ExampleThe inherence engineThe inherence engine which in this case is made by the engineer using a web based programming language like ASP or PHP in the website from the last example we see that the programming language used is ASP and we can see that from the address bar. http//www.yourdiagnosis.com/yourdiagnosis/Yourdiagnosis.ASP?WCI=WorldMapHTMWCE=ClickWCUThe knowledge baseThe knowledge base in this case is where all the rules that the knowledge engineer inputted them in this case the engineer used Microsoft SQL SERVER 2008. The knowledge in this ca se is the medical knowledge given by the doctors.The working storageThe working storage in this case is a storage area on the server where each users data is stored in a relational databaseThe benefits of using artificial intelligenceThe main benefits of using artificial intelligence are Provide answers for decisions, processes and tasks that are repetitive Hold huge amounts of information Minimize employee training be Centralize the decision making process Make things more efficient by reducing the time needed to solve problems Combine various human expertises. Reduce the number of errors caused by humans. Provide strategic and comparative advantages that may create problems for competitors Look over transactions that human experts may not think ofEven though the benefits of artificial intelligence is more than the above we find that the main advantage to using artificial intelligence is to maximize the efficiency of a business thus giving the business the edge it needs to over th row its competitors.Why Artificial intelligence is hard to include in information systemsThe difficulties in including artificial intelligence in information systems are due to many facts one of which is the expense. Furthermore there are multiple divisors why its so difficult to include artificial intelligence in information systems from which is the human acceptance to Artificial intelligence especially in the older groups another factor is that domain experts will be threatened by the fact that they are giving their expertise to a company and the fear of being redundant.From the technical point of view the implementation of artificial intelligence is quite hard due to the if rule conversion of the expertise. And the integration with old systems will require an effort especially for established companies with legacy hardware and software.Which brings us to the expense part of the problem? There is no doubt that artificial intelligence is an expensive approach as it is time consum ing as it requires a lot of time and human resources. Furthermore developing artificial intelligence relies heavily on having the correct expert information and having something wrong in the knowledge base might cause damages which will lead to costly error and problems. Reference Anonymous. Dictionary of Computing, 1986, bracing York Oxford University Press. Bishop, Peter. Fifth Generation Computers Concepts, Implementations Uses, 1986, Chichester, England Ellis Horwood Ltd. Brule, James F. Artificial Intelligence Theory, Logic and Application, 1986, Blue Ridge Summit, PA TAB Books. Edwards, Alex and Connell, N.A.D. Expert Systems in Accounting, 1989, Herfordshire, UK Prentice Hall multinational (UK) Ltd. Forsyth, Richard, Expert Systems Principles and Case Studies, 1984, London Chapman and Hall Computing. Harmon, Paul and King, David. Expert Systems Artificial Intelligence in Business. 1985, New York Wiley. Liebowitz, Jay, Introduction to Expert Systems, 1988, Santa Cruz, CA Mitchell Publishing, Inc. Michaelsen, Robert H. Michie, Donald and Boulanger, Albert. The Technology of Expert Systems Byte April 1985 Rich, Elaine and Knight, Kevin. Artificial Intelligence Second Edition. 1991, New York McGraw-Hill. Waterman, Donald A. A Guide to Expert Systems, 1986, Reading, MA Addison-Wesley. Winston, Patrick H. and Prendergast, Karen A. (Editors). The AI Business Commercial Use of Artificial Intelligence, 1984, Cambridge, MA The MIT Press. compassion A. Palmquist, Asst. Professor, AI and Expert Systems, 1996, http//www.ischool.utexas.edu/palmquis/courses/ai96.htm Dan E. OLeary, University of Southern California, 1994, http//accounting.rutgers.edu/raw/aies/www.bus.orst.edu/faculty/brownc/es_tutor/bus_ai.htm Robert S. Engelmore, May 1993 WTEC Hyper-Librarian, http//www.wtec.org/loyola/kb/c1_s1.htm Carol E. Brown, Oregon State University, Dan E. OLeary, University of Southern California, 1995, http//accounting.rutgers.edu/raw/aies/www.bus.orst.edu/faculty/b rownc/es_tutor/es_tutor.htm1-AI