BibFinder/StatMiner: Effectively Mining and Using Coverage and Overlap Statistics in Data Integration

@inproceedings{Nie2003BibFinderStatMinerEM,
  title={BibFinder/StatMiner: Effectively Mining and Using Coverage and Overlap Statistics in Data Integration},
  author={Zaiqing Nie and Subbarao Kambhampati and Thomas Hernandez},
  booktitle={VLDB},
  year={2003}
}
Recent work in data integration has shown the importance of statistical information about the coverage and overlap of sources for efficient query processing. Despite this recognition there are no effective approaches for learning the needed statistics. In this paper we present StatMiner, a system for estimating the coverage and overlap statistics while keeping the needed statistics tightly under control. StatMiner uses a hierarchical classification of the queries, and threshold based variants… CONTINUE READING
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Efficiently Ordering Plans for Data Integration

Rakesh Agrawal, Ramakrishnan Srikant
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