Question 18
RULE BASED EXPERT SYSTEMS
A Rete Net for classifying lenses based on surface properties (convex, concave, planar, radius of curvature, and number of sides) is shown in the figure. Each lens is uniquely identified by “itemNo” attribute, the remaining classes and attributes are self explanatory.
A part of the Rete Net that classifies mushrooms (as edible or poisonous) is shown in the figure. The labels A1, A2, ..., A15, ..., B1, B2, …, B5, R1, …, R6 uniquely identify the nodes in the network. When required, use the above label ordering to break ties and to enter short answers. Note: beta nodes B4 and B5 compare the radius of curvature of two surfaces.
Which of the following rule-data tuples are in the conflict-set?
R1,105
R2,103,106
R4,102,103
R5,102