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 | 0.00035968389 |
| 297 | Complexity of Answering Queries Using Materialized Views | 1998 | PODS | 0.00028596715 |
| 698 | The Chase Revisited | 2008 | PODS | 0.00018030148 |
| 822 | Composing Schema Mappings: Second-Order Dependencies to the Rescue | 2004 | PODS | 0.00016255689 |
| 1,494 | Inverting Schema Mappings | 2006 | PODS | 0.00011693148 |
| 1,742 | Composition of Mappings Given by Embedded Dependencies | 2005 | PODS | 0.00010708408 |
| 2,692 | Quasi-inverses of Schema Mappings | 2007 | PODS | 8.2908844e-05 |
| 3,389 | The Recovery of a Schema Mapping: Bringing Exchanged Data Back | 2008 | PODS | 7.157044e-05 |
| 3,502 | Data Exchange and Incomplete Information | 2006 | PODS | 7.0366655e-05 |
| 6,145 | Reverse Data Exchange: Coping with Nulls | 2009 | PODS | 5.1886368e-05 |
| 6,349 | Inverting Schema Mappings: Bridging the Gap between Theory and Practice | 2009 | VLDB | 5.101852e-05 |
| 7,393 | Incomplete Information and Certain Answers in General Data Models | 2011 | PODS | 4.7428879e-05 |
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Semantically Similar Papers
| Overall Rank | Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 1,494 | Inverting Schema Mappings | 2006 | PODS | 0.00011693148 |
| 5,897 | Answering Aggregate Queries in Data Exchange | 2008 | PODS | 5.2842198e-05 |
| 2,692 | Quasi-inverses of Schema Mappings | 2007 | PODS | 8.2908844e-05 |
| 3,643 | The Complexity of Data Exchange | 2006 | PODS | 6.8862411e-05 |
| 5,767 | Data Exchange beyond Complete Data | 2011 | PODS | 5.3334039e-05 |
| 6,349 | Inverting Schema Mappings: Bridging the Gap between Theory and Practice | 2009 | VLDB | 5.101852e-05 |
| 4,705 | Locally Consistent Transformations and Query Answering in Data Exchange | 2004 | PODS | 5.9830709e-05 |
| 3,502 | Data Exchange and Incomplete Information | 2006 | PODS | 7.0366655e-05 |
| 6,145 | Reverse Data Exchange: Coping with Nulls | 2009 | PODS | 5.1886368e-05 |
| 3,389 | The Recovery of a Schema Mapping: Bringing Exchanged Data Back | 2008 | PODS | 7.157044e-05 |