UPI: A Primary Index for Uncertain Databases
Summary: UPI is a primary index for uncertain databases, clustering by uncertain attributes and duplicating tuples per possible value. It adds a Cutoff Index to cap low-probability data and uses buffered, batched updates with cost models, delivering up to 100x faster uncertain queries than baselines. (summarized by gpt-5-nano on Feb 09 2026)
Incoming Non-self Citations Over Time
Authors
- 1. Hideaki Kimura
- 2. Samuel Madden
- 3. Stanley B. Zdonik
Incoming Citations (Sorted by Pagerank)
Showing 3 of 3 citing papers.
| Rank | Citing Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 8,378 | Probabilistic Management of OCR Data using an RDBMS | 2012 | VLDB | 4.5320288e-05 |
| 11,904 | Indexing Metric Uncertain Data for Range Queries | 2015 | SIGMOD | 4.1945683e-05 |
| 11,905 | Supporting Data Uncertainty in Array Databases | 2015 | SIGMOD | 4.1945683e-05 |
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Outgoing Citations (Sorted by Pagerank)
Showing 6 of 6 cited papers.
Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 101 | ULDBs: Databases with Uncertainty and Lineage | 2006 | VLDB | 0.0004955674 |
| 1,586 | Indexing Multi-Dimensional Uncertain Data with Arbitrary Probability Density Functions | 2005 | VLDB | 0.00011250856 |
| 2,308 | Efficient Indexing Methods for Probabilistic Threshold Queries over Uncertain Data | 2004 | VLDB | 9.0591406e-05 |
| 2,837 | Correlation Maps: A Compressed Access Method for Exploiting Soft Functional Dependencies | 2009 | VLDB | 8.0414149e-05 |
| 3,545 | DBLP — Some Lessons Learned | 2009 | VLDB | 6.989355e-05 |
| 5,935 | Indexing Uncertain Data | 2009 | PODS | 5.2657009e-05 |
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Semantically Similar Papers
| Overall Rank | Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 1,312 | Reducing the Storage Overhead of Main-Memory OLTP Databases with Hybrid Indexes | 2016 | SIGMOD | 0.00012652548 |
| 2,552 | Updatable Learned Index with Precise Positions | 2021 | VLDB | 8.5530411e-05 |
| 4,128 | Are Updatable Learned Indexes Ready? | 2022 | VLDB | 6.4292373e-05 |
| 5,346 | UpBit: Scalable In-Memory Updatable Bitmap Indexing | 2016 | SIGMOD | 5.5561846e-05 |
| 2,308 | Efficient Indexing Methods for Probabilistic Threshold Queries over Uncertain Data | 2004 | VLDB | 9.0591406e-05 |
| 7,623 | Optimizing Probabilistic Query Processing on Continuous Uncertain Data | 2011 | VLDB | 4.6933659e-05 |
| 7,941 | Efficient Uncertainty Tracking for Complex Queries with Attribute-level Bounds | 2021 | SIGMOD | 4.613363e-05 |
| 11,905 | Supporting Data Uncertainty in Array Databases | 2015 | SIGMOD | 4.1945683e-05 |
| 1,586 | Indexing Multi-Dimensional Uncertain Data with Arbitrary Probability Density Functions | 2005 | VLDB | 0.00011250856 |
| 11,904 | Indexing Metric Uncertain Data for Range Queries | 2015 | SIGMOD | 4.1945683e-05 |