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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


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


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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