Data Exchange: Getting to the Core
Summary: Core of any universal solution is unique (up to isomorphism), is the minimal universal solution, and optimally answers unions of conjunctive queries with inequalities. Complexity: core computation NP-hard in general and core-recognition DP-complete; provide broad data-exchange conditions yielding polynomial-time construction. (summarized by gpt-5-mini on Feb 09 2026)
Incoming Non-self Citations Over Time
Authors
- 1. Ronald Fagin
- 2. Phokion G. Kolaitis
- 3. Lucian Popa
Incoming Citations (Sorted by Pagerank)
Showing 3 of 53 citing papers.
| Rank | Citing Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 12,215 | Certain Answers for XML Queries | 2010 | PODS | 4.1945683e-05 |
| 12,430 | Expressiveness and Complexity of XML Publishing Transducers | 2007 | PODS | 4.1945683e-05 |
| 12,532 | Determining Source Contribution in Integration Systems | 2005 | PODS | 4.1945683e-05 |
Outgoing Citations (Sorted by Pagerank)
Showing 8 of 8 cited papers.
Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 38 | Testing Implications Of Data Dependencies | 1979 | SIGMOD | 0.00075110004 |
| 48 | Data Integration: A Theoretical Perspective | 2002 | PODS | 0.00069720859 |
| 173 | Schema Mapping as Query Discovery | 2000 | VLDB | 0.00038627829 |
| 297 | Complexity of Answering Queries Using Materialized Views | 1998 | PODS | 0.00028596715 |
| 480 | Translating Web Data | 2002 | VLDB | 0.00022191997 |
| 915 | The Complexity of Evaluating Relational Queries | 1983 | PODS | 0.0001538509 |
| 2,058 | Functional and Inclusion Dependencies: A Graph Theoretic Approach | 1984 | PODS | 9.6585264e-05 |
| 2,401 | Physical Data Independence, Constraints, and Optimization with Universal Plans | 1999 | VLDB | 8.8954126e-05 |
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Semantically Similar Papers
| Overall Rank | Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 3,502 | Data Exchange and Incomplete Information | 2006 | PODS | 7.0366655e-05 |
| 5,000 | CWA-Solutions for Data Exchange Settings with Target Dependencies | 2007 | PODS | 5.774558e-05 |
| 5,897 | Answering Aggregate Queries in Data Exchange | 2008 | PODS | 5.2842198e-05 |
| 7,078 | Laconic Schema Mappings: Computing the Core with SQL Queries | 2009 | VLDB | 4.8424931e-05 |
| 4,705 | Locally Consistent Transformations and Query Answering in Data Exchange | 2004 | PODS | 5.9830709e-05 |
| 2,715 | Peer Data Exchange | 2005 | PODS | 8.2433779e-05 |
| 4,513 | Core Schema Mappings | 2009 | SIGMOD | 6.1227596e-05 |
| 3,643 | The Complexity of Data Exchange | 2006 | PODS | 6.8862411e-05 |
| 2,829 | Computing Cores for Data Exchange: New Algorithms and Practical Solutions | 2005 | PODS | 8.0546963e-05 |
| 3,424 | Data Exchange: Computing Cores in Polynomial Time | 2006 | PODS | 7.110765e-05 |