Transcript Introduction to Knowledge Based Systems (KBS)

Clinical Decision Support and Knowledge
Management
• Staff
– Alan Rector
• email: [email protected] or [email protected]
• Format
– Lecture demonstration, discussion, Web, and lab
• 1-2 lecture-demo sessions per week interspersed with lab work
• Assessment
– Web searches and summary on a given topic
– Continuous assessment lab projects
– Exam
20%
40%
40%
• But you must pass the exam to pass the course!
www.cs.man.ac.uk/ai/modules/cds
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Conferences
• Conferences
– MEDINFO 2004
• -triennial
– AMIA Fall Symposium (JAMIA)
– MIE – Medical Informatics Europe
– AIME – Artificial Intelligence in Medicine Europe
• Journals
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Journal of the American Medical Informatics Association (JAMIA)
Journal of Biomedical Computing (Computers in Biomedical Research)
Methods of information in Medicine
International Journal of Biomedical Computing
IEEE transactions on biomedical computing
www.cs.man.ac.uk/ai/modules/cds
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Course Web Site
• Much of the course will use material from the web
• Part of your assessment will be to contribute to the web site
Course Web Site
www.cs.man.ac.uk/~rector/modules/cds
(last year’s …/cds-2003)
Medinfo Ontology Tutorial
http://www.cs.man.ac.uk/~rector/tutorials/medinfo
• Bookmark the web site ASAP
• Look at the cds_links.htm file - it is also part of the handout.
www.cs.man.ac.uk/ai/modules/cds
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Texts
• There just is no good single text
– Readings to be distributed
– Readings through web page
– Handbook of Medical Informatics
– See Web page “Good General Sites and Books”
– Official texts – both badly out of date!
• Clinical Decision Support Systems: Theory and Practice Ed Berner ES. Ball
MJ1st Edition Jan 1988, Springer Verlag : ISBN0387985751
• Additional textEvaluation Methods in Medical Informatics Friedman CP, ed
Wyatt JC, 1st Edition Jan 1987, Springer Verlag : ISBN0387942289
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Assessment details
• Web sites and review of a topic - Due Week 5: 20%
• Mini-project and Paper - Due final day of course: 40%
– Something implemented in one of the tools
– Ideal is “End to end” - not likely possible
• Exam - 90 minutes written paper: 40%
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Goals of Module
• Understand the context of medical decision support,
guidelines and protocols
• Understand the difficulty of compiling protocols. (The
task of gathering the evidence for protocols via “systematic
review” requires a separate module.
• Understand some of the difficulties in translating
guidelines for human interpretation into computable form
• Basic understanding of some of the technologies used
• Basic understanding of the foundations required
www.cs.man.ac.uk/ai/modules/cds
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Technologies & Tools
• Primary Technologies
– Structured text guidelines - Gemcutter
• New version expected in March – currently sabotaged by Microsoft updates
– Knowledge Representation and Ontologies Protégé-OWL
– Rule based systems and Protocol Engines – Tallis/ ProForma / Protege
– Belief Nets – Hugin or Netica (http://www.norsys.com/)
– Object Oriented Design and UML - Universal Modelling Language ArgoUML and HL7 RIM
• Supplementary technologies
– XML - the underlying syntax for just about everything these days
• XML related technologies - at least to know their names XSLT, RDF, etc.
• Best source is http://www.w3schools.com/
(not w3school (singular) which is a commercial squatter)
www.cs.man.ac.uk/ai/modules/cds
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Fundamental Knowledge
• Bayes theorem and utility theory
– Enough to understand what makes good evidence and how
evidence flows around a network
– The difference between probability and expected utility
• Elementary formal logic
– Enough to understand the underlying connections between
Knowledge Representation, Rules Based Systems and Object
Oriented Modelling
• Taught in half-hour a week mini-chunks plus problem sets
www.cs.man.ac.uk/ai/modules/cds
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Plan for the Course
• Week 2
– Gemcutter (we hope)
• Week 3-6
– Knowledge Representation, Ontologies, Logic, Object Oriented Design,
and UML
• Weeks 7-8
– Statistical Methods and Belief nets and Utility
• Weeks 9-10
– Formal Reasoning and ProForma (we hope)
• Week 11
– Review and catch up.
www.cs.man.ac.uk/ai/modules/cds
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Feedback and Supplementary Material
• Up to you really
• Please email me suggestions to add to the course web site.
– [email protected]
– [email protected]
www.cs.man.ac.uk/ai/modules/cds
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