Week 7 - CLIPS; Uncertain Reasoning

Assignment:

Review this document.

Read Chapter 4 (Reasoning Under Uncertainty) in the text "Expert Systems: Principles and Programming."

ES article reviews by 565 students

Important Terms and Concepts:

Review materials from previous weeks in preparation for the midterm exam.

Selection of ES Development Tools

Categories of ES Development Tools

rule-based
frame-based
procedure-oriented
logic-based
object-oriented
access-oriented

Categories of ES Applications

interpretation
prediction
diagnosis
planning
monitoring
debugging
repair
instruction
control

Categories of ES Applications and Recommended Tool Category

interpretation - rule-based (forward chaining), logic-based
prediction - object-oriented, procedure-oriented, rule-based (forward chaining)
diagnosis - rule-based (backward chaining)
planning - rule-based (forward chaining), frame-based, access-oriented
monitoring - access-oriented, rule-based (forward chaining)
debugging - rule-based (backward chaining), logic-based, frame-based
repair - rule-based (backward chaining), logic-based, frame-based
instruction - rule-based (forward and backward chaining)
control - access-oriented, object-oriented, rule-based (forward chaining)

ES Tool Features to Consider

combinations of representation and reasoning methods
is the tool maintained
built-in explanation and interaction facilities
ability to interface with data bases, spread sheets, and other software
ability to embed in other software
debugging aids
uncertain reasoning capabilities
tool and computer costs
tool speed
intended user of tool
startup cost of the tool (training)

Waterman's questions to ask when selecting an ES development tool

Does the tool provide the development team with the power and sophistication they need?
Are the tool's support facilities adequate considering the time frame for development?
Is the tool reliable?
Is the tool maintained?
Does the tool have the features suggested by the needs of the problem?
Does the tool have the features suggested by the needs of the application?

AI and ES Information Available Via WWW

Here are some interesting places on WWW that have information related to ES and AI - note these will not be on the exam.