RULE BASED EXPERT SYSTEMS\ A part of the Rete Net that classifies mushrooms (as edible or poisonous) is shown in the figure. The labels A1, A2, ..., A10, A16, ..., B1, B2, B3, R1, …, R4 uniquely identify the nodes in the network. When required, use the above label ordering to break ties and to enter short answers. Rete network with alpha nodes A1 to A16, beta nodes B1 to B3 and rules R1 to R4 for Mushroom, Stalk and Cap classes Run the Rete algorithm for the Working Memory shown below, the WMEs are in timestamp order. Assume that WMEs reside at appropriate Alpha nodes, and the Beta nodes point to WMEs residing in Alpha nodes. 101. (Cap ^specimen C36 ^colour RED ^surface SMOOTH) 102. (Cap ^specimen A25 ^colour WHITE ^surface SMOOTH) 103. (Mushroom ^specimen X16 ^odour NONE ^habitat LEAVES) 104. (Mushroom ^specimen A25 ^odour NONE ^habitat LEAVES) 105. (Stalk ^specimen C36 ^root BULBOUS ^ar-colour WHITE) 106. (Stalk ^specimen X16 ^br-surface SCALY ^ar-colour WHITE) 107. (Mushroom ^specimen C36 ^odour NONE ^sp-colour WHITE) 108. (Mushroom ^specimen B49 ^odour ALMOND ^sp-colour BROWN) 109. (Stalk ^specimen B49 ^br-surface SMOOTH) For each WME identify its location (node label) in the Rete Net, and prepare the conflict set for the first cycle, then answer the given subquestions. If the Inference Engine uses Recency as the conflict resolution strategy then which of the following rule-data tuples will qualify?.

AI: Search Methods for Problem Solving · End Term · 24 Dec 2023 · September 2023 term · Set FDB1

Question 20: RULE BASED EXPERT SYSTEMS\ A part of the Rete Net that c…

Question 20

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RULE BASED EXPERT SYSTEMS
A part of the Rete Net that classifies mushrooms (as edible or poisonous) is shown in the figure. The labels A1, A2, ..., A10, A16, ..., B1, B2, B3, R1, …, R4 uniquely identify the nodes in the network. When required, use the above label ordering to break ties and to enter short answers.

Run the Rete algorithm for the Working Memory shown below, the WMEs are in timestamp order. Assume that WMEs reside at appropriate Alpha nodes, and the Beta nodes point to WMEs residing in Alpha nodes.

text

1101.  (Cap ^specimen C36  ^colour RED  ^surface SMOOTH)
2102.  (Cap ^specimen A25  ^colour WHITE  ^surface SMOOTH)
3103.  (Mushroom ^specimen X16  ^odour NONE  ^habitat LEAVES)
4104.  (Mushroom ^specimen A25  ^odour NONE  ^habitat LEAVES)
5105.  (Stalk ^specimen C36  ^root BULBOUS  ^ar-colour WHITE)
6106.  (Stalk ^specimen X16  ^br-surface SCALY  ^ar-colour WHITE)
7107.  (Mushroom ^specimen C36  ^odour NONE  ^sp-colour WHITE)
8108.  (Mushroom ^specimen B49  ^odour ALMOND  ^sp-colour BROWN)
9109.  (Stalk ^specimen B49  ^br-surface SMOOTH)

For each WME identify its location (node label) in the Rete Net, and prepare the conflict set for the first cycle, then answer the given subquestions.

If the Inference Engine uses Recency as the conflict resolution strategy then which of the following rule-data tuples will qualify?.

A
R1,107
B
R2,102,104
C
R3,103,106
D
R4,101,105
E
R2,102,103
F
R3,104,106

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Correct answer

A
R1,107

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Question 20 of 26 in the IIT Madras BS AI: Search Methods for Problem Solving (AI Search Methods) End Term paper sat on 24 Dec 2023, in the September 2023 term (IIT M DEGREE FN EXAM FDB1 24 Dec 2023). It carries 1 mark.

Question 20: RULE BASED EXPERT SYSTEMS\ A part of the Rete Net that c…

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