IMPrECISE: Good-is-good-enough Data Integration

Christoph Koch, B. König-Ries, V. Markl, Maurice van Keulen

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The IMPrECISE system is a probabilistic XML database system which supports near-automatic integration of XML documents. What is required of the user is to configure the system with a few simple knowledge rules allowing the system to sufficiently eliminate nonsense possibilities. We demonstrate the integration process under conditions with varying degrees of confusion and different sets of rules. Even when an integrated document still contains much uncertainty, it can be queried effectively. The system produces a sequence of possible result elements ranked by likelihood. User feedback on query results further reduces uncertainty which in a sense continues the semantic integration process incrementally. We demonstrate querying on integrated documents and measure answer quality with adapted precision and recall measures. The user feedback mechanism has not been implemented, hence cannot be demonstrated yet. IMPrECISE has been implemented as an XQuery module for the XML DBMS MonetDB/XQuery. Therefore, the demo also illustrates the power of this XML DBMS and of XQuery as both a query and programming language.
Original languageUndefined
Title of host publication08421 Abstracts Collection - Uncertainty Management in Information Systems
EditorsC. Koch, B. König-Ries, V. Markl, Maurice van Keulen
Place of PublicationDagstuhl, Germany
Number of pages1
ISBN (Print)1862-4405
Publication statusPublished - Mar 2009
EventUncertainty Management in Information Systems: Dagstuhl Seminar 08421 - Dagstuhl, Germany, Dagstuhl, Germany
Duration: 12 Oct 200817 Oct 2008

Publication series

NameDagstuhl Seminar Proceedings
PublisherSchloss Dagstuhl - Leibniz-Zentrum fuer Informatik
ISSN (Print)1862-4405


WorkshopUncertainty Management in Information Systems
Other12 - 17 Oct 2008


  • METIS-265203
  • EWI-15241
  • Data Integration
  • IR-65442
  • probabilistic databases
  • data quality
  • entity resolution
  • Uncertainty management

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