Given a sequence database, we would like to find all sequential patterns that do not only satisfy a minimum support min_sup, but also start with “{a}” and end with “{b}”, where {a} or {b} is an itemset containing a single item a or b, respectively. How would you modify the PrefixSpan algorithm so that such patterns can be generated efficiently?

Given a sequence database, we would like to find all sequential patterns that do not only satisfy a minimum support min_sup, but also start with “{a}” and end with “{b}”, where {a} or {b} is an itemset containing a single item a or b, respectively. How would you modify the PrefixSpan algorithm so that such patterns can be generated efficiently?

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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Process or set of rules that allow for the solving of specific, well-defined computational problems through a specific series of commands. This topic is fundamental in computer science, especially with regard to artificial intelligence, databases, graphics, networking, operating systems, and security.

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