You have a frequent itemset I={football, cricket, swimming, climbing} that contains 4 items. What does it mean when you say that I is a maximal itemset? a.There is no other frequent itemset for the given dataset b.a) There is no superset of I that is a frequent itemset c.The set {cricket, swimming, climbing} is not frequent d.All frequent itemsets have 4 items Look at the command for the Document Database below. What does it do?db.superheroes.insert{ { collection: “people”, forename: “Bruce”, surname: “Banner”, age: 40 }}; a.It deletes a record for Bruce Banner b.a) It inserts a record for Bruce Banner in the collection superheroes c.It inserts the record for Bruce Banner in the collection people d.It creates a new collection for Bruce Banner in the collection people

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Answered: You have a frequent itemset…

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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You have a frequent itemset I={football, cricket, swimming, climbing} that contains 4 items. What does it mean when you say that I is a maximal itemset?

	a.	There is no other frequent itemset for the given dataset
	b.	a) There is no superset of I that is a frequent itemset
	c.	The set {cricket, swimming, climbing} is not frequent
	d.	All frequent itemsets have 4 items

Look at the command for the Document Database below. What does it do?

db.superheroes.insert{

{

collection: “people”, forename: “Bruce”, surname: “Banner”, age: 40

}

};

	a.	It deletes a record for Bruce Banner
	b.	a) It inserts a record for Bruce Banner in the collection superheroes
	c.	It inserts the record for Bruce Banner in the collection people
	d.	It creates a new collection for Bruce Banner in the collection people

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