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{a} 11 {a} 13 {b} 11 {b} 13 {c} 11 {c} 13 {d} 11 {d} 13 {a, b} 11 {a, b} 13 {a, c} 11 {a, c} 13 {a, d} 11 {a, d} 13 {b, c) 11 {b, c} 13 {b, d) 11 {b, d} 13 ☐ (c, d) 9 {c, d} 11 {a, b, c) 9 {a, b, c) 11 {a, b, d} 11 fa. b. d 13 ☐ (a, c, d) 9 {a, c, d} 11 ☐ {b, c, d) 9 {b, c, d) 11 {a, b, c, d} 9 {a, b, c, d} 11

{a} 11 {a} 13 {b} 11 {b} 13 {c} 11 {c} 13 {d} 11 {d} 13 {a, b} 11 {a, b} 13 {a, c} 11 {a, c} 13 {a, d} 11 {a, d} 13 {b, c) 11 {b, c} 13 {b, d) 11 {b, d} 13 ☐ (c, d) 9 {c, d} 11 {a, b, c) 9 {a, b, c) 11 {a, b, d} 11 fa. b. d 13 ☐ (a, c, d) 9 {a, c, d} 11 ☐ {b, c, d) 9 {b, c, d) 11 {a, b, c, d} 9 {a, b, c, d} 11

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
Problem 1PE
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Question

For a given dataset with min_sup = 8 (absolute support), the closed patterns are {a,b,c,d} with support of 9, {a,b,c} with support of 11, and {a, b,d} with support of 13. 

(2) Select all the frequent patterns and their correct absolute support values

{a} 11 {a} 13 {b} 11 {b} 13 {c} 11 {c} 13 {d} 11 {d} 13 {a, b} 11 {a, b} 13 {a, c} 11 {a, c} 13 {a, d} 11 {a, d} 13 {b, c) 11 {b, c} 13 {b, d) 11 {b, d} 13 ☐ (c, d) 9 {c, d} 11 {a, b, c) 9 {a, b, c) 11 {a, b, d} 11 fa. b. d 13
Transcribed Image Text:{a} 11 {a} 13 {b} 11 {b} 13 {c} 11 {c} 13 {d} 11 {d} 13 {a, b} 11 {a, b} 13 {a, c} 11 {a, c} 13 {a, d} 11 {a, d} 13 {b, c) 11 {b, c} 13 {b, d) 11 {b, d} 13 ☐ (c, d) 9 {c, d} 11 {a, b, c) 9 {a, b, c) 11 {a, b, d} 11 fa. b. d 13
☐ (a, c, d) 9 {a, c, d} 11 ☐ {b, c, d) 9 {b, c, d) 11 {a, b, c, d} 9 {a, b, c, d} 11
Transcribed Image Text:☐ (a, c, d) 9 {a, c, d} 11 ☐ {b, c, d) 9 {b, c, d) 11 {a, b, c, d} 9 {a, b, c, d} 11
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