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DSS Vs Expert System

DSS Vs Expert System. By Anita Johri INFS 401 Spring 2012. What is DSS?. Helps is decision making when trying to figure out solution for a non structured decision. Focuses on problems that are unique, non routine & rapidly changing. . 3 Components of DSS:. Model Management

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DSS Vs Expert System

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  1. DSS Vs Expert System By Anita Johri INFS 401 Spring 2012

  2. What is DSS? • Helps is decision making when trying to figure out solution for a non structured decision. Focuses on problems that are unique, non routine & rapidly changing. Anita Johri - INFS 401

  3. 3 Components of DSS: • Model Management • Data Management • User Interface Management Anita Johri - INFS 401

  4. Examples…of DSS: Anita Johri - INFS 401

  5. What is Expert System? • Major roles of individuals who interact with the system • Domain expert • Knowledge engineer • User • The major components are: • Knowledge base • Working storage • Inference engine • User interface Anita Johri - INFS 401

  6. Problems in developing an ES: • The expert is unable to communicate his/her ideas • The expert is unwilling to communicate his/her ideas • The expert is not available • Can all the testing be accomplished? • User acceptance • Disadvantages of Rule-Based Expert Systems • Common sense • Creativity • Learning • Sensory Experience • Degradation Anita Johri - INFS 401

  7. Advantages of ES • Availability • Cheaper • Reduced danger • Permanence • Multiple expertise • Explanation • Fast response • Unemotional and response at all times Anita Johri - INFS 401

  8. Ethical implications: • Do you want to put a decision about your life in the hands of a computer? • When do you think you’d trust a computer’s judgment over a doctors? • Does anyone know any examples of expert systems used in everyday life? Anita Johri - INFS 401

  9. Where are Expert System used? • Aircraft accident investigations- GP1020 Computer Tool • Robotic surgeries. more than 300 surgeries done. • Scientist use Robots in space research/ or radioactive places where its not safe for humans to go. • Interactive games : Chess, Wii • Saya : Taking tech classes. (surprise, fear, disgust, anger, happiness and sadness) • Triage – Medical Diagnosis (Medical Expert System) • Patriot Missile Guidance System • Radar identifies Scud missile • System steers Patriot missile to intercepts Scud missile • Laws of physics, expert knowledge about missile trajectory is captured in the system Anita Johri - INFS 401

  10. DSS Expert Systems Automate decision making. The decision environments have structure The alternatives and goals are often established in advance. Inject expert knowledge in to a computer system. The expert system can eventually replace the human decision maker. • Facilitates decision making • Unstructured environment • Alternatives may not be fully realized yet • Extract or gain knowledge from a computer system • Use goals and the system data to establish alternatives and outcomes, so a good decision can be made Anita Johri - INFS 401

  11. References: http://worldacademyonline.com/article/25/367/dss_applications.html http://www.tech-faq.com/decision-support-system.html http://wiki.answers.com/Q/Different_between_expert_system_and_decision_support_system http://en.wikipedia.org/wiki/Decision_support_system www.google.com Anita Johri - INFS 401

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