1. COM362 Knowledge Engineering Modern Case Studies 1 John MacIntyre 0191 515 3778 john.macintyre@sunderland.ac.uk

2. COM362 Knowledge Engineering Modern Case Studies 2 Application Areas Engineering Diagnostics Environmental Monitoring Building Design Nutrition Advice Baking Police Investigation Remember the feasibility key points!

3. COM362 Knowledge Engineering Modern Case Studies 3 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

4. COM362 Knowledge Engineering Modern Case Studies 4 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

5. COM362 Knowledge Engineering Modern Case Studies 5 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

6. COM362 Knowledge Engineering Modern Case Studies 6 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)

7. COM362 Knowledge Engineering Modern Case Studies 7 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

8. COM362 Knowledge Engineering Modern Case Studies 8 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

9. COM362 Knowledge Engineering Modern Case Studies 9 Computer Aided Design Two systems developed by universities in Hong Kong Floor Plan Design Expert (FPDX) Interior Design Expert (IDX) Linked with CAD systems

10. COM362 Knowledge Engineering Modern Case Studies 10 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

11. COM362 Knowledge Engineering Modern Case Studies 11 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

12. COM362 Knowledge Engineering Modern Case Studies 12 Benefits Quick decisions Efficient design Regulation compliance Health and safety benefits Consistency!

13. COM362 Knowledge Engineering Modern Case Studies 13 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

14. COM362 Knowledge Engineering Modern Case Studies 14 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

15. COM362 Knowledge Engineering Modern Case Studies 15 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

16. COM362 Knowledge Engineering Modern Case Studies 16 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

17. COM362 Knowledge Engineering Modern Case Studies 17 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

18. COM362 Knowledge Engineering Modern Case Studies 18 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

19. COM362 Knowledge Engineering Modern Case Studies 19 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

20. COM362 Knowledge Engineering Modern Case Studies 20 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

21. COM362 Knowledge Engineering Modern Case Studies 21 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

22. COM362 Knowledge Engineering Modern Case Studies 22 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