Quality-driven Integration of Heterogenous Information Systems.

Felix Naumann, Ulf Leser, Johann Christoph Freytag: Quality-driven Integration of Heterogenous Information Systems. VLDB 1999: 447-458
  author    = {Felix Naumann and
               Ulf Leser and
               Johann Christoph Freytag},
  editor    = {Malcolm P. Atkinson and
               Maria E. Orlowska and
               Patrick Valduriez and
               Stanley B. Zdonik and
               Michael L. Brodie},
  title     = {Quality-driven Integration of Heterogenous Information Systems},
  booktitle = {VLDB'99, Proceedings of 25th International Conference on Very
               Large Data Bases, September 7-10, 1999, Edinburgh, Scotland,
  publisher = {Morgan Kaufmann},
  year      = {1999},
  isbn      = {1-55860-615-7},
  pages     = {447-458},
  ee        = {db/conf/vldb/NaumannLF99.html},
  crossref  = {DBLP:conf/vldb/99},
  bibsource = {DBLP,}


Integrated access to information that is spread over multiple, distributed, and heterogeneous sources is an important problem in many scientific and commercial domains. While much work has been done on query processing and choosing plans under cost criteria, very little is known about the important problem of incorporating the information quality aspect into query planning.

In this paper we describe a framework for multidatabase query processing that fully includes the quality of information in many facets, such as completeness, timeliness, accuracy, etc. We seamlessly include information quality into a multidatabase query rocessor based on a view-rewriting mechanism. We model information quality at different levels to ultimately find a set of high-quality query-answering plans.

Copyright © 1999 by the VLDB Endowment. Permission to copy without fee all or part of this material is granted provided that the copies are not made or distributed for direct commercial advantage, the VLDB copyright notice and the title of the publication and its date appear, and notice is given that copying is by the permission of the Very Large Data Base Endowment. To copy otherwise, or to republish, requires a fee and/or special permission from the Endowment.

Online Paper

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Printed Edition

Malcolm P. Atkinson, Maria E. Orlowska, Patrick Valduriez, Stanley B. Zdonik, Michael L. Brodie (Eds.): VLDB'99, Proceedings of 25th International Conference on Very Large Data Bases, September 7-10, 1999, Edinburgh, Scotland, UK. Morgan Kaufmann 1999, ISBN 1-55860-615-7
Contents BibTeX


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Referenced by

  1. Chris Olston, Jennifer Widom: Offering a Precision-Performance Tradeoff for Aggregation Queries over Replicated Data. VLDB 2000: 144-155
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