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NDV Estimator.pdf

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Preview of NDV Estimator
🔗 Source: vldb.org
📊 Size: 1.76 MB
📄 Pages: 13 pages
⬇️ Downloads: 394

Summary

Estimating the number of distinct values in a column is useful for database systems, but existing sample-based estimators have limitations. A supervised learning framework is proposed to learn a model as an estimator, which can be trained with synthetically generated data and deployed to offer efficient and accurate estimations. The learned estimator is compared with state-of-the-art sample-based estimators on nine real-world datasets, demonstrating its superior estimation accuracy.

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Description

Estimating the number of distinct values in a column is useful for database systems, but existing sample-based estimators have limitations.

Technical Information

  • File Format: PDF
  • File Size: 1.76 MB
  • Pages: 13
  • Language: EN
  • Total Downloads: 394
  • Last Updated: 24 hours ago

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This PDF document about NDV Estimator provides comprehensive information and guidance. Whether you're a beginner or advanced user, this resource offers valuable insights into NDV Estimator.

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