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Random Databases with Approximate Record Matching

Author

Listed:
  • Oleg Seleznjev

    (Umeå University
    Moscow State University)

  • Bernhard Thalheim

    (Christian-Albrechts University)

Abstract

In many database applications in telecommunication, environmental and health sciences, bioinformatics, physics, and econometrics, real-world data are uncertain and subjected to errors. These data are processed, transmitted and stored in large databases. We consider stochastic modelling for databases with uncertain data and for some basic database operations (for example, join, selection) with exact and approximate matching. Approximate join is used for merging or data deduplication in large databases. Distribution and mean of the join sizes are studied for random databases. A random database is treated as a table with independent random records with a common distribution (or a set of random tables). These results can be used for integration of information from different databases, multiple join optimization, and various probabilistic algorithms for structured random data.

Suggested Citation

  • Oleg Seleznjev & Bernhard Thalheim, 2010. "Random Databases with Approximate Record Matching," Methodology and Computing in Applied Probability, Springer, vol. 12(1), pages 63-89, March.
    • Handle: RePEc:spr:metcap:v:12:y:2010:i:1:d:10.1007_s11009-008-9092-4
    DOI: 10.1007/s11009-008-9092-4
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    References listed on IDEAS

    as
    1. Oleg Seleznjev & Bernhard Thalheim, 2003. "Average Case Analysis in Database Problems," Methodology and Computing in Applied Probability, Springer, vol. 5(4), pages 395-418, December.
    2. J. B. Copas & F. J. Hilton, 1990. "Record Linkage: Statistical Models for Matching Computer Records," Journal of the Royal Statistical Society Series A, Royal Statistical Society, vol. 153(3), pages 287-312, May.
    3. Shykula, Mykola & Seleznjev, Oleg, 2006. "Stochastic structure of asymptotic quantization errors," Statistics & Probability Letters, Elsevier, vol. 76(5), pages 453-464, March.
    Full references (including those not matched with items on IDEAS)

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