Efficient Algorithms for Cardinality Estimation and Conjunctive Query Evaluation With Simple Degree Constraints
Summary: Polynomial-time algorithm computes the polymatroid bound for simple degree constraints and produces a proof sequence to accelerate PANDA-based conjunctive query evaluation. Introduces a practical flow bound and discusses computational limits for extending to broader degree-constraint classes. (summarized by gpt-5-nano on Feb 09 2026)
Incoming Non-self Citations Over Time
Authors
- 1. Sungjin Im (University of California Santa Cruz)
- 2. Benjamin Moseley (Carnegie Mellon University)
- 3. Hung Q. Ngo (RelationalAI)
- 4. Kirk Pruhs (University of Pittsburgh)
BibTeX Citation
@inproceedings{im_pods25,
address = {New York, NY, USA},
series = {{PODS} '25},
title = {{Efficient Algorithms for Cardinality Estimation and Conjunctive Query Evaluation With Simple Degree Constraints}},
url = {https://dl.acm.org/doi/10.1145/3725233},
doi = {10.1145/3725233},
booktitle = {Proceedings of the {ACM} {SIGMOD} Symposium on {Principles} of {Database} {Systems}},
publisher = {Association for Computing Machinery},
author = {Im, Sungjin and Moseley, Benjamin and Ngo, Hung Q. and Pruhs, Kirk},
year = {2025}
}
Incoming Citations (Sorted by Pagerank)
Showing 2 of 2 citing papers.
| Rank | Citing Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 10,382 | PANDAExpress: A Simpler and Faster PANDA Algorithm | 2026 | PODS | 4.9793485e-05 |
| 10,627 | CorrBound: Cardinality Estimation Accounting for Inter- and Intra-relation Correlations | 2026 | SIGMOD | 4.9793485e-05 |
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Outgoing Citations (Sorted by Pagerank)
Showing 10 of 10 cited papers.
Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 15 | How Good Are Query Optimizers, Really? | 2016 | VLDB | 0.00061066921 |
| 315 | Worst-Case Optimal Join Algorithms: Techniques, Results, and Open Problems | 2018 | PODS | 0.00021246 |
| 402 | Worst-case Optimal Join Algorithms | 2012 | PODS | 0.00019104625 |
| 1,091 | What do Shannon-type Inequalities, Submodular Width, and Disjunctive Datalog have to do with one another? | 2017 | PODS | 0.00012074152 |
| 1,465 | Pessimistic Cardinality Estimation: Tighter Upper Bounds for Intermediate Join Cardinalities | 2019 | SIGMOD | 0.00010576304 |
| 3,526 | Bag Query Containment and Information Theory | 2020 | PODS | 7.2321894e-05 |
| 4,852 | LpBound: Pessimistic Cardinality Estimation using ℓp-Norms of Degree Sequences | 2025 | SIGMOD | 6.3806134e-05 |
| 5,219 | SafeBound: A Practical System for Generating Cardinality Bounds | 2023 | SIGMOD | 6.222726e-05 |
| 5,918 | Join Size Bounds using l_p-Norms on Degree Sequences | 2024 | PODS | 5.9481539e-05 |
| 6,739 | Computing Join Queries with Functional Dependencies | 2016 | PODS | 5.6917027e-05 |
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Semantically Similar Papers
| # | Overall Rank | Paper | Year | Venue |
|---|---|---|---|---|
| 1 | 5,219 | SafeBound: A Practical System for Generating Cardinality Bounds | 2023 | SIGMOD |
| 2 | 6,195 | Towards an Efficient Evaluation of General Queries: Quantifier and Disjunction Processing Revisited | 1989 | SIGMOD |
| 3 | 794 | On the Complexity of Bounded-Variable Queries | 1995 | PODS |
| 4 | 2,974 | Accurate Summary-based Cardinality Estimation Through the Lens of Cardinality Estimation Graphs | 2022 | VLDB |
| 5 | 5,918 | Join Size Bounds using l_p-Norms on Degree Sequences | 2024 | PODS |
| 6 | 51 | Efficient Query Evaluation on Probabilistic Databases | 2004 | VLDB |
| 7 | 6,467 | Output-sensitive Conjunctive Query Evaluation | 2024 | PODS |
| 8 | 5,199 | Exact Cardinality Query Optimization with Bounded Execution Cost | 2019 | SIGMOD |
| 9 | 9,169 | Efficient Approximations of Conjunctive Queries | 2012 | PODS |
| 10 | 4,452 | Bounded Conjunctive Queries | 2014 | VLDB |