Bag Query Containment and Information Theory
Summary: Establishes a tight link between information inequalities and bag-semantic conjunctive-query containment: many-one equivalence between validity of generalized information inequalities and containment when the containing CQ is acyclic. Also isolates a decidable case: an EXPTIME algorithm for containment when the containing CQ is chordal and admits a simple junction tree. (summarized by gpt-5-mini on Feb 09 2026)
Incoming Non-self Citations Over Time
Authors
- 1. Mahmoud Abo Khamis (RelationalAI)
- 2. Phokion G. Kolaitis (IBM; University of California Santa Cruz)
- 3. Hung Q. Ngo (RelationalAI)
- 4. Dan Suciu (University of Washington)
BibTeX Citation
@inproceedings{khamis_pods20,
address = {New York, NY, USA},
series = {{PODS} '20},
title = {{Bag Query Containment and Information Theory}},
url = {https://dl.acm.org/doi/10.1145/3375395.3387645},
doi = {10.1145/3375395.3387645},
booktitle = {Proceedings of the {ACM} {SIGMOD} Symposium on {Principles} of {Database} {Systems}},
publisher = {Association for Computing Machinery},
author = {Khamis, Mahmoud Abo and Kolaitis, Phokion G. and Ngo, Hung Q. and Suciu, Dan},
year = {2020}
}
Incoming Citations (Sorted by Pagerank)
Showing 11 of 11 citing papers.
Previous
Page 1 / 1
Next
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 |
|---|---|---|---|---|
| 309 | Optimization of Real Conjunctive Queries | 1993 | PODS | 0.00021768596 |
| 1,109 | What do Shannon-type Inequalities, Submodular Width, and Disjunctive Datalog have to do with one another? | 2017 | PODS | 0.00012142685 |
| 1,269 | The Containment Problem for Real Conjunctive Queries with Inequalities | 2006 | PODS | 0.000113935 |
| 3,432 | An Information-Theoretic Approach to Normal Forms for Relational and XML Data | 2003 | PODS | 7.4182332e-05 |
| 3,498 | Attacking Diophantus: Solving a Special Case of Bag Containment | 2019 | PODS | 7.3629798e-05 |
| 6,672 | Computing Join Queries with Functional Dependencies | 2016 | PODS | 5.8070233e-05 |
Previous
Page 1 / 1
Next
Semantically Similar Papers
| # | Overall Rank | Paper | Year | Venue |
|---|---|---|---|---|
| 1 | 309 | Optimization of Real Conjunctive Queries | 1993 | PODS |
| 2 | 10,174 | A Unifying Algorithm for Hierarchical Queries | 2026 | PODS |
| 3 | 382 | Conjunctive-Query Containment and Constraint Satisfaction | 1998 | PODS |
| 4 | 1,630 | On the Decidability of Query Containment under Constraints | 1998 | PODS |
| 5 | 3,039 | Query Containment for Data Integration Systems | 2000 | PODS |
| 6 | 3,498 | Attacking Diophantus: Solving a Special Case of Bag Containment | 2019 | PODS |
| 7 | 6,542 | Determinacy of Real Conjunctive Queries. The Boolean Case | 2022 | PODS |
| 8 | 10,175 | Bag Semantics Query Containment: The CQ vs. UCQ Case and Other Stories | 2026 | PODS |
| 9 | 9,946 | Bag Semantics Conjunctive Query Containment. Four Small Steps Towards Undecidability. | 2024 | PODS |
| 10 | 1,269 | The Containment Problem for Real Conjunctive Queries with Inequalities | 2006 | PODS |