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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
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
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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

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
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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