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Modern Case Studies. John MacIntyre 0191 515 3778 [email protected] Application Areas. Engineering Diagnostics Environmental Monitoring Building Design Nutrition Advice Baking Police Investigation Remember the feasibility key points!. The TIGER System.

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modern case studies

Modern Case Studies

John MacIntyre

0191 515 3778

[email protected]

COM362 Knowledge Engineering

Modern Case Studies

application areas
Application Areas
  • Engineering Diagnostics
  • Environmental Monitoring
  • Building Design
  • Nutrition Advice
  • Baking
  • Police Investigation
  • Remember the feasibility key points!

COM362 Knowledge Engineering

Modern Case Studies

the tiger system
The TIGER System
  • Developed Intelligent Applications Ltd, Scotland
  • Monitors gas turbines in real-time, and diagnoses faults
  • Linked to on-line data acquisition systems with hundreds of possible variables
  • Sophisticated front-end graphics for data visualisation

COM362 Knowledge Engineering

Modern Case Studies

the tiger problem
The TIGER Problem
  • Information overload for plant engineers
  • High capital costs of catastrophic failures
  • High costs for non-availability of turbines
  • Desire to run turbines to optimum efficiency
  • Lack of skilled engineers in turbine diagnostics

COM362 Knowledge Engineering

Modern Case Studies

benefits of tiger
Benefits of TIGER
  • Continuous, 24-hour a day analysis of data
  • Automatic or semi-automatic diagnosis
  • Storage of complete picture of events leading up to turbine trips or faults
  • Reduced downtime, increased availability
  • Hundreds of thousands of pounds saved by National Power and PowerGen

COM362 Knowledge Engineering

Modern Case Studies

the sepca system
The SEPCA System
  • Developed by the National Ecological Institute of Mexico, and the US Air Force
  • Monitoring of air quality in Mexico City
  • Data from 25 monitoring stations located around Metropolitan Zone of Mexico City (MZMC)
  • Measure general air conditions and specific pollutants (ozone, carbon monoxide, etc etc….lots of information)

COM362 Knowledge Engineering

Modern Case Studies

sepca approach
SEPCA Approach
  • Uses meteorological data to forecast air quality information
  • Performs:
    • quantitative analysis -levels of pollutant
    • qualitative analysis - graphical interface showing forecast air quality against allowable bands and alarms
  • Being expanded to include photo-chemistry data

COM362 Knowledge Engineering

Modern Case Studies

benefits of sepca
Benefits of SEPCA
  • Improvements in information available to meteorologists
  • Improved ability to warn public of bad air quality events
  • Improved ability to identify particular problem areas
  • Ability to see patterns and trends in pollution

COM362 Knowledge Engineering

Modern Case Studies

computer aided design
Computer Aided Design
  • Two systems developed by universities in Hong Kong
  • Floor Plan Design Expert (FPDX)
  • Interior Design Expert (IDX)
  • Linked with CAD systems

COM362 Knowledge Engineering

Modern Case Studies

slide10
FPDX
  • FPDX used by architects to evaluate whether an apartment building floor plan adheres to government requirements and standards
  • Very high overhead on regulations
  • Regulations often required subjective interpretation
  • Need faster, more consistent decisions
  • Automated from drawings

COM362 Knowledge Engineering

Modern Case Studies

slide11
IDX
  • IDX analyses design based on a set of design principles
  • Gives suggestions for improvements
  • Helps designer with:
    • spatial relationships of objects
    • basic design guidelines
    • regulations and standards
    • health and safety issues

COM362 Knowledge Engineering

Modern Case Studies

benefits
Benefits
  • Quick decisions
  • Efficient design
  • Regulation compliance
  • Health and safety benefits
  • Consistency!

COM362 Knowledge Engineering

Modern Case Studies

nutricon
NUTRICON
  • Developed at East Texas State University
  • Nutrition consultant expert system
  • Used by nutrition consultants, dieticians, health care professionals
  • Graphical interface for user input, linked to database of stored domain knowledge

COM362 Knowledge Engineering

Modern Case Studies

nutricon approach
NUTRICON Approach
  • Has a knowledge base of nutrients present in thousands of food items
  • Has rules on Recommended Daily Allowances (RDAs) for different age groups, different sexes, different lifestyle requirements
  • Highlights problems, deficiencies, and recommends remedial actions

COM362 Knowledge Engineering

Modern Case Studies

benefits1
Benefits
  • Simplifies a very complex alternatives dependent upon age, sex, lifestyle
  • Remedial actions tailored to the individual
    • suggested menus etc
  • Can easily be used by non-experts in nutrition to give advice to patients
  • Consistent and traceable

COM362 Knowledge Engineering

Modern Case Studies

advising the baker
Advising the Baker
  • Developed at the Flour Milling and Baking Research Association, England
  • Designed to help bakers to:
    • optimise product quality
    • improve operational use of retarding equipment (basically to control the yeast activity in the dough)
  • Allows either manual or automatic operation of equipment

COM362 Knowledge Engineering

Modern Case Studies

retarding advisor
Retarding Advisor
  • Rule base of complex relationships between ingredients, formulations, dough process and retarding process
  • Includes a “What If?” capability - lets the user see the outcome of scenarios (both ingredients and plant settings)
  • Advises on plant settings and ingredients
  • Plant settings can be automatically downloaded to the machines

COM362 Knowledge Engineering

Modern Case Studies

benefits2
Benefits
  • Helps the baker to make better bread!!
  • Better product quality, more consistent, less waste
  • Efficient use of plant - more throughput
  • Improved knowledge of the baking process itself
  • Spin-off benefit - training and education of machine operators

COM362 Knowledge Engineering

Modern Case Studies

investigators notebook
Investigators’ Notebook
  • Developed by the Ottowa Police Service, Canada
  • Supports investigations of residential break and entry incidents
  • Motivation is the vast amount of information gathered by the police during investigations
  • Used as a pilot study to show how ES could be used throughout police service

COM362 Knowledge Engineering

Modern Case Studies

investigators notebook1
Investigators’ Notebook
  • Large set of historical data available
  • Used in conjunction with new incidents to carry out knowledge acquisition and modelling of break and enter events, suspect profiles etc
  • KA process led to modification and standardisation of documentation of incidents
  • Allows links to other cases

COM362 Knowledge Engineering

Modern Case Studies

benefits3
Benefits
  • Makes information easily accessible
    • previously held only in reports
  • Standardises “best practice” approach to investigation
  • Allows trending and linking with other cases in vicinity/similar case parameters
  • Links with previous offenders
  • Generates list of suspects
  • Graphic display capability

COM362 Knowledge Engineering

Modern Case Studies

conclusions
Conclusions
  • Very varied!!
  • Potential for applications in most domains
  • However successful applications have been “scoped” well
    • definition of the area of the knowledge domain to be tackled
  • Feasibility rules apply in all cases

COM362 Knowledge Engineering

Modern Case Studies

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