Consider the transaction database in the table below: TID items_bought 1 {a, b, c, d} 2 {b, c, e, f} 3 {a, d, e, f} 4 {a, e, f} 5 {b, d, f} Show the prefix-based enumeration tree of frequent itemsets, for the data set of the table above at an absolute minimum support level of 2. Assume a lexicographic ordering of a, b, c, d, e, f.

Q: 2. Eliminate all ɛ-productions in the following cfg G: G= ({S,A,B}, {a,b,c}, {S→Aa|BBBA, A bS|ɛ,…

A:

Q: For the battleships database schema defined in the attached pictures (record examples included),…

A: The answer is below:

Q: For each subquestion below we will change various values in the recurrence relation T(n) = 81T(353)…

A: suppose we decrease the value of 105 to become 70.what impact would that have on the asymptotic…

Q: how does it reduce the response time of query processing using B+ tree (or B tree) in a data base?

A: the solution is an given below :

Q: This is a linked list question (C). Why is a dbly linked list not useful for data that requires to…

A: Answer: A doubly linked list is a data structure in which each node has a pointer to both the next…

Q: One of the benefits from Graph Database is it is significantly faster than traditional Relational…

A:

Q: oximiation, and how can it be performed using fuzzy rel

A: Introduction: Below describe the approximation and how can it be performed using fuzzy relation?

Q: One of the benefits from Graph Database is it is significantly faster than traditional Relational…

A:

Q: Sort primary key-based definitions from the 2NF and 3NF into generic definitions. provide examples.

A: Normalization is a process in database design that aims to eliminate data redundancy and improve…

Q: Question 2: ww Create a database of a single list for 5 students in Prolog. A. Write a query to…

A: In this question we are asked to create a database of student grades in Prolog for five students.…

Q: Consider the following UNIVERSITY DB, the given SQL query, and the provided canonical tree. Apply…

A: SELECT s.snameFROM student s, attend a, lecture l, professor pWHERE s.sno=a.sno AND a.lno=l.lno…

Q: When dealing with nominal data, vector space-based classification techniques often perform badly.…

A: Machine learning (ML) is a subfield of artificial intelligence (AI) that enables computers to learn…

Q: How does query optimization differ when querying against nested JSON objects as compared to flat…

A: Query optimization strategies can differ significantly when querying against nested JSON objects…

Q: Suppose we increased the value of 81 to become 85, what impact would that have on the asymptotic…

A: Time complexity usually depends on the size of the input and the algorithm that is being used.   If…

Q: Consider the schema for a flight schedule database that keeps track of carriers (such as British…

A: To optimize the given SQL query, let's start by constructing the initial query tree and then apply…

Q: In this hypothetical scenario, you have access to a database listing the x, y coordinates and names…

A: Answer is explained below with explanation

Types of database architectures

A Database Architecture represents the Database Management System’s (DBMS) design (schema). The DBMS architecture makes it easy to understand the components involved in the database system and their relations. The DBMS architecture may vary based on the system on which it runs. Some systems contain both client and server machines whereas some run only on a server machine. Based on the architecture, the system can be classified as centralized, decentralized, or hierarchical.