Artificial Intelligence Using computers to replicate the human response
Types of Artificial Intelligence Systems <ul><li>Robotics </li></ul><ul><li>Natural language processing </li></ul><ul><li>...
Expert System Emulates the decision making ability of a human expert: that is, it is expected to act in all respect like a...
Expert System Glossary <ul><li>Domain Expert:  </li></ul><ul><ul><li>A person who is an expert on the topic </li></ul></ul...
Expert System Glossary <ul><li>Knowledge Engineer: </li></ul><ul><ul><li>A person who extracts the expert knowledge from a...
Expert System Glossary <ul><li>Heuristic Knowledge:  </li></ul><ul><ul><li>Rules of thumb known by those knowledgeable in ...
Expert System Glossary <ul><li>Expert System Shell: </li></ul><ul><ul><li>A software program used to develop expert system...
Expert System Structure <ul><li>Rules:  </li></ul><ul><ul><li>If/then statements </li></ul></ul><ul><li>Knowledge base: </...
Expert System Usage <ul><li>Capture knowledge of experienced investigators prior to their retirement </li></ul><ul><li>Con...
Examples Of Expert Systems
Residential Burglary Expert System (ReBES) <ul><li>Purpose: </li></ul><ul><ul><li>provide investigators with a list of sus...
ReBES Locations <ul><li>Baltimore, MD </li></ul><ul><li>Tucson, AZ </li></ul><ul><li>Charlotte, NC </li></ul><ul><li>Roche...
ReBES Components <ul><li>Database of victims which identifies MO factors </li></ul><ul><li>Database of known offenders ide...
ReBES Usage <ul><li>80% of usage is database searches only </li></ul><ul><li>ReBES used in 20% of most difficult cases onl...
Other Systems <ul><li>CODES: </li></ul><ul><ul><li>Penal code adviser </li></ul></ul><ul><li>CSI: </li></ul><ul><ul><li>Cr...
Rule Structure <ul><li>IF  you put a raw egg in a frying pan </li></ul><ul><li>OR  you put raw bacon in a frying pay  </li...
Rule Structure <ul><li>If OR and AND </li></ul><ul><ul><li>Are conditions </li></ul></ul><ul><li>THEN   </li></ul><ul><ul>...
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  • File NameL AI.ppt This presentation is an introduction to knowledge based systems. Demo files: Codes.Exe and CSI.Exe
  • K Ai

    1. 1. Artificial Intelligence Using computers to replicate the human response
    2. 2. Types of Artificial Intelligence Systems <ul><li>Robotics </li></ul><ul><li>Natural language processing </li></ul><ul><li>Virtual reality </li></ul><ul><li>Neural networks </li></ul><ul><li>Expert systems </li></ul>
    3. 3. Expert System Emulates the decision making ability of a human expert: that is, it is expected to act in all respect like a human expert
    4. 4. Expert System Glossary <ul><li>Domain Expert: </li></ul><ul><ul><li>A person who is an expert on the topic </li></ul></ul><ul><ul><li>Is willing to share their knowledge </li></ul></ul>
    5. 5. Expert System Glossary <ul><li>Knowledge Engineer: </li></ul><ul><ul><li>A person who extracts the expert knowledge from a domain expert. </li></ul></ul><ul><ul><li>They then write the rules to reflect the knowledge of the domain expert in a logical sequence. </li></ul></ul>
    6. 6. Expert System Glossary <ul><li>Heuristic Knowledge: </li></ul><ul><ul><li>Rules of thumb known by those knowledgeable in the field. </li></ul></ul>
    7. 7. Expert System Glossary <ul><li>Expert System Shell: </li></ul><ul><ul><li>A software program used to develop expert systems and to conduct inquires. </li></ul></ul>
    8. 8. Expert System Structure <ul><li>Rules: </li></ul><ul><ul><li>If/then statements </li></ul></ul><ul><li>Knowledge base: </li></ul><ul><ul><li>What or who the program knows </li></ul></ul><ul><li>Confidence factors: </li></ul><ul><ul><li>Statistics and Probabilies </li></ul></ul>
    9. 9. Expert System Usage <ul><li>Capture knowledge of experienced investigators prior to their retirement </li></ul><ul><li>Conduct data comparisons to provide investigative leads </li></ul><ul><li>Computer based training </li></ul><ul><li>Structure the decision making process </li></ul>
    10. 10. Examples Of Expert Systems
    11. 11. Residential Burglary Expert System (ReBES) <ul><li>Purpose: </li></ul><ul><ul><li>provide investigators with a list of suspects in burglary cases </li></ul></ul>
    12. 12. ReBES Locations <ul><li>Baltimore, MD </li></ul><ul><li>Tucson, AZ </li></ul><ul><li>Charlotte, NC </li></ul><ul><li>Rochester, NY </li></ul><ul><li>Tampa, FL </li></ul>
    13. 13. ReBES Components <ul><li>Database of victims which identifies MO factors </li></ul><ul><li>Database of known offenders identifying their MO traits </li></ul><ul><li>Knowledge base: Set of rules which relates current case to known offenders </li></ul><ul><li>130 to 150 rules in the systems </li></ul>
    14. 14. ReBES Usage <ul><li>80% of usage is database searches only </li></ul><ul><li>ReBES used in 20% of most difficult cases only </li></ul>
    15. 15. Other Systems <ul><li>CODES: </li></ul><ul><ul><li>Penal code adviser </li></ul></ul><ul><li>CSI: </li></ul><ul><ul><li>Crime scene investigation dispatch protocol </li></ul></ul><ul><li>Joe Friday: </li></ul><ul><ul><li>Case solvability factors </li></ul></ul>
    16. 16. Rule Structure <ul><li>IF you put a raw egg in a frying pan </li></ul><ul><li>OR you put raw bacon in a frying pay </li></ul><ul><li>AND the frying pay is hot </li></ul><ul><li>THEN you will cook the egg or bacon </li></ul>
    17. 17. Rule Structure <ul><li>If OR and AND </li></ul><ul><ul><li>Are conditions </li></ul></ul><ul><li>THEN </li></ul><ul><ul><li>Is the conclusion </li></ul></ul>

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