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Mining for patterns in contradictory data

Published: 18 June 2004 Publication History

Abstract

Information integration is often faced with the problem that different data sources represent the same set of the real-world objects, but give conflicting values for specific properties of these objects. Within this paper we present a model of such conflicts and describe an algorithm for efficiently detecting patterns of conflicts in a pair of overlapping data sources. The contradiction patterns we can find are a special kind of association rules, describing regularities in conflicts occurring together with certain attribute values, paris of attribute values, or with other conflicts. Therefore, we adapt existing association rule mining algorithms for mining contradiction patterns. Such patterns are an important tool for human experts that try to find and resolve problems in data quality using domain knowledge. We present the results of applying our method on a real world data set from the life science domain and show how it helps to generate clean data for integrated data warehouses.

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  • (2017)Mining and visualising contradictory dataJournal of Big Data10.1186/s40537-017-0100-94:1Online publication date: 30-Oct-2017
  • (2012)Discovering conditional inclusion dependenciesProceedings of the 21st ACM international conference on Information and knowledge management10.1145/2396761.2398580(2094-2098)Online publication date: 29-Oct-2012
  • (2012)Improving data quality by source analysisJournal of Data and Information Quality10.1145/2107536.21075382:4(1-38)Online publication date: 2-Mar-2012
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  1. Mining for patterns in contradictory data

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    cover image ACM Conferences
    IQIS '04: Proceedings of the 2004 international workshop on Information quality in information systems
    June 2004
    81 pages
    ISBN:1581139020
    DOI:10.1145/1012453
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    Published: 18 June 2004

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    View all
    • (2017)Mining and visualising contradictory dataJournal of Big Data10.1186/s40537-017-0100-94:1Online publication date: 30-Oct-2017
    • (2012)Discovering conditional inclusion dependenciesProceedings of the 21st ACM international conference on Information and knowledge management10.1145/2396761.2398580(2094-2098)Online publication date: 29-Oct-2012
    • (2012)Improving data quality by source analysisJournal of Data and Information Quality10.1145/2107536.21075382:4(1-38)Online publication date: 2-Mar-2012
    • (2007)QDexProceedings of the 2007 international conference on Web information systems engineering10.5555/1781503.1781506(5-16)Online publication date: 3-Dec-2007
    • (2007)Measuring and Modelling Data Quality for Quality-Awareness in Data MiningQuality Measures in Data Mining10.1007/978-3-540-44918-8_5(101-126)Online publication date: 2007
    • (2006)Describing differences between databasesProceedings of the 15th ACM international conference on Information and knowledge management10.1145/1183614.1183702(612-621)Online publication date: 6-Nov-2006
    • (2006)Report from the First and Second International Workshops on Information Quality in Information SystemsACM SIGMOD Record10.1145/1147376.114738435:2(50-52)Online publication date: 1-Jun-2006

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