Recovering Exchanged Data
Summary: Move from static inverse mappings to instance-based recovery: given a target instance and s→t TGDs, introduce recovery semantics and chase-based methods to compute finite representative sets of candidate source instances. Show coNP-completeness and give a PTIME algorithm that returns a small set yielding sound certain answers for UCQs, with an extension improving results for CQs. (summarized by gpt-5-mini on Feb 09 2026)
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Authors
- 1. Gösta Grahne
- 2. Ali Moallemi
- 3. Adrian Onet
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Outgoing Citations (Sorted by Pagerank)
Showing 12 of 12 cited papers.
Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 188 | Applying Model Management to Classical Meta Data Problems | 2003 | CIDR | 0.00035935715 |
| 297 | Complexity of Answering Queries Using Materialized Views | 1998 | PODS | 0.00028572729 |
| 695 | The Chase Revisited | 2008 | PODS | 0.00018013323 |
| 818 | Composing Schema Mappings: Second-Order Dependencies to the Rescue | 2004 | PODS | 0.00016240185 |
| 1,493 | Inverting Schema Mappings | 2006 | PODS | 0.00011682325 |
| 1,739 | Composition of Mappings Given by Embedded Dependencies | 2005 | PODS | 0.00010698182 |
| 2,694 | Quasi-inverses of Schema Mappings | 2007 | PODS | 8.2836784e-05 |
| 3,388 | The Recovery of a Schema Mapping: Bringing Exchanged Data Back | 2008 | PODS | 7.1502016e-05 |
| 3,507 | Data Exchange and Incomplete Information | 2006 | PODS | 7.0299158e-05 |
| 6,146 | Reverse Data Exchange: Coping with Nulls | 2009 | PODS | 5.1840756e-05 |
| 6,346 | Inverting Schema Mappings: Bridging the Gap between Theory and Practice | 2009 | VLDB | 5.0969624e-05 |
| 7,391 | Incomplete Information and Certain Answers in General Data Models | 2011 | PODS | 4.7383385e-05 |
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Semantically Similar Papers
| Overall Rank | Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 1,493 | Inverting Schema Mappings | 2006 | PODS | 0.00011682325 |
| 5,901 | Answering Aggregate Queries in Data Exchange | 2008 | PODS | 5.2791434e-05 |
| 2,694 | Quasi-inverses of Schema Mappings | 2007 | PODS | 8.2836784e-05 |
| 3,647 | The Complexity of Data Exchange | 2006 | PODS | 6.8796285e-05 |
| 5,775 | Data Exchange beyond Complete Data | 2011 | PODS | 5.3282847e-05 |
| 6,346 | Inverting Schema Mappings: Bridging the Gap between Theory and Practice | 2009 | VLDB | 5.0969624e-05 |
| 4,707 | Locally Consistent Transformations and Query Answering in Data Exchange | 2004 | PODS | 5.9773898e-05 |
| 3,507 | Data Exchange and Incomplete Information | 2006 | PODS | 7.0299158e-05 |
| 6,146 | Reverse Data Exchange: Coping with Nulls | 2009 | PODS | 5.1840756e-05 |
| 3,388 | The Recovery of a Schema Mapping: Bringing Exchanged Data Back | 2008 | PODS | 7.1502016e-05 |