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An Introduction to Duplicate Detection

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An Introduction to Duplicate Detection Cover

 

Synopses & Reviews

Publisher Comments:

With the ever increasing volume of data, data quality problems abound. Multiple, yet different representations of the same real-world objects in data, duplicates, are one of the most intriguing data quality problems. The effects of such duplicates are detrimental; for instance, bank customers can obtain duplicate identities, inventory levels are monitored incorrectly, catalogs are mailed multiple times to the same household, etc. Automatically detecting duplicates is difficult: First, duplicate representations are usually not identical but slightly differ in their values. Second, in principle all pairs of records should be compared, which is infeasible for large volumes of data. This lecture examines closely the two main components to overcome these difficulties: (i) Similarity measures are used to automatically identify duplicates when comparing two records. Well-chosen similarity measures improve the effectiveness of duplicate detection. (ii) Algorithms are developed to perform on very large volumes of data in search for duplicates. Well-designed algorithms improve the efficiency of duplicate detection. Finally, we discuss methods to evaluate the success of duplicate detection. Table of Contents: Data Cleansing: Introduction and Motivation / Problem Definition / Similarity Functions / Duplicate Detection Algorithms / Evaluating Detection Success / Conclusion and Outlook / Bibliography

Product Details

ISBN:
9781608452200
Author:
Naumann, Felix
Publisher:
Morgan & Claypool
Author:
Herschel, Melanie
Subject:
Database Management - Data Warehousing
Subject:
Database-Data Warehousing
Publication Date:
20100331
Binding:
TRADE PAPER
Language:
English
Pages:
88
Dimensions:
7.51x9.25x.18 in. .37 lbs.

Related Subjects

Computers and Internet » Computers Reference » General
Computers and Internet » Computers Reference » Social Aspects » Human and Computer Interaction
Computers and Internet » Database » Database Management

An Introduction to Duplicate Detection New Trade Paper
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$35.95 In Stock
Product details 88 pages Morgan & Claypool - English 9781608452200 Reviews:
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