From table 1, assuming the min confidence is 35%, and minsup is 37%, which of the following rules are strong? a. a2, b2 => H b. a1, b1 => L
From table 1, assuming the min confidence is 35%, and minsup is 37%, which of the following rules are strong? a. a2, b2 => H b. a1, b1 => L
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
From table 1, assuming the min confidence is 35%, and minsup is 37%, which of the following rules are strong?
a. a2, b2 => H
b. a1, b1 => L

Transcribed Image Text:X1
X2
X3
X4
X5
X6
X7
X8
A
a1
a2
a2
a2
a2
a2
a2
a1
B
b1
b1
b2
b2
b1
b2
b1
b2
Table 1.
૦ ૪ ૪ ૪ ૪ ૪ ૪ ૪ ૪
D
L
L
H
II LIIL
H
H
H
Expert Solution

Step 1
The following criteria from Table 1 are strong, given that min confidence is 35% and minsup is 37%:
a2, b2 => H
a1, b1 => L
The rules a1 => c3, L => b1, a2, b2 => H, and a1, b1 => L are all considered strong, assuming a min confidence of 35% and a minsup of 37%.
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