DBScholar

Back to papers

FAQ: Questions Asked Frequently

Summary: Defines FAQ, a unifying formalism for CSPs, PGMs, matrix ops, joins and logic, and presents InsideOut, a variable-elimination algorithm that leverages fractional edge covers and worst-case optimal join techniques. Characterizes semantically equivalent variable orderings and gives a polytime approximation to minimize fractional FAQ-width. (summarized by gpt-5-mini on Feb 09 2026)

Paper ID
hecc65d24f57dba00
Venue
PODS
Year
2016
Pagerank
0.00020048899
Overall Rank
357 | 97.61%
DOI
10.1145/2902251.2902280

Incoming Non-self Citations Over Time

Authors

BibTeX Citation

@inproceedings{khamis_pods16,
        address = {New York, NY, USA},
        series = {{PODS} '16},
        title = {{FAQ: Questions Asked Frequently}},
        url = {https://dl.acm.org/doi/10.1145/2902251.2902280},
        doi = {10.1145/2902251.2902280},
        booktitle = {Proceedings of the {ACM} {SIGMOD} Symposium on {Principles} of {Database} {Systems}},
        publisher = {Association for Computing Machinery},
        author = {Khamis, Mahmoud Abo and Ngo, Hung Q. and Rudra, Atri},
        year = {2016}
}

Incoming Citations (Sorted by Pagerank)

Showing 50 of 78 citing papers.

Rank Citing Paper Year Venue Pagerank
208 EmptyHeaded: A Relational Engine for Graph Processing 2016 SIGMOD 0.00024929198
318 Worst-Case Optimal Join Algorithms: Techniques, Results, and Open Problems 2018 PODS 0.00021178303
522 Learning Linear Regression Models over Factorized Joins 2016 SIGMOD 0.00016893112
815 The Dynamic Yannakakis Algorithm: Compact and Efficient Query Processing Under Updates 2017 SIGMOD 0.00013682594
819 Hypertree Decompositions: Questions and Answers 2016 PODS 0.00013623401
1,096 What do Shannon-type Inequalities, Submodular Width, and Disjunctive Datalog have to do with one another? 2017 PODS 0.00012035761
1,226 Data Management in Machine Learning: Challenges, Techniques, and Systems 2017 SIGMOD 0.00011432354
1,253 Distributed Evaluation of Subgraph Queries Using Worst-case Optimal Low-Memory Dataflows 2018 VLDB 0.00011316982
1,568 AJAR: Aggregations and Joins over Annotated Relations 2016 PODS 0.00010178045
1,603 Adopting Worst-Case Optimal Joins in Relational Database Systems 2020 VLDB 0.00010090639
2,316 On Functional Aggregate Queries with Additive Inequalities 2019 PODS 8.6404062e-05
2,602 Optimal Algorithms for Ranked Enumeration of Answers to Full Conjunctive Queries 2020 VLDB 8.2157154e-05
2,638 Convergence of Datalog over (Pre-) Semirings 2022 PODS 8.1763678e-05
2,673 A Layered Aggregate Engine for Analytics Workloads 2019 SIGMOD 8.1276375e-05
2,974 In-Database Learning with Sparse Tensors 2018 PODS 7.7812156e-05
3,122 Incremental View Maintenance with Triple Lock Factorization Benefits 2018 SIGMOD 7.6091671e-05
3,199 Trade-offs in Static and Dynamic Evaluation of Hierarchical Queries 2020 PODS 7.5261206e-05
3,331 SPOOF: Sum-Product Optimization and Operator Fusion for Large-Scale Machine Learning 2017 CIDR 7.4065701e-05
3,584 Attacking Diophantus: Solving a Special Case of Bag Containment 2019 PODS 7.1705819e-05
4,011 Guaranteeing the O~(AGM/OUT) Runtime for Uniform Sampling and Size Estimation over Joins 2023 PODS 6.842581e-05
4,174 The Relational Data Borg is Learning 2020 VLDB 6.750725e-05
4,329 MNC: Structure-Exploiting Sparsity Estimation for Matrix Expressions 2019 SIGMOD 6.64569e-05
4,505 SPORES: Sum-Product Optimization via Relational Equality Saturation for Large Scale Linear Algebra 2020 VLDB 6.5561966e-05
4,730 Optimal Join Algorithms Meet Top-k 2020 SIGMOD 6.4313418e-05
4,762 Tensor Relational Algebra for Distributed Machine Learning System Design 2021 VLDB 6.4190861e-05
5,610 Cover or Pack: New Upper and Lower Bounds for Massively Parallel Joins 2021 PODS 6.0498245e-05
5,613 HyperBench: A Benchmark and Tool for Hypergraphs and Empirical Findings 2019 PODS 6.048773e-05
5,911 Yannakakis+: Practical Acyclic Query Evaluation with Theoretical Guarantees 2025 SIGMOD 5.9338021e-05
6,032 A Query Language Perspective on Graph Learning 2023 PODS 5.8906344e-05
6,059 Topology Dependent Bounds For FAQs 2019 PODS 5.8832527e-05
6,242 The Fast and the Private: Task-based Dataset Search 2024 CIDR 5.8223943e-05
6,278 General and Fractional Hypertree Decompositions: Hard and Easy Cases 2018 PODS 5.8092008e-05
6,443 Evaluating Datalog over Semirings: A Grounding-based Approach 2024 PODS 5.7666211e-05
6,482 Output-sensitive Conjunctive Query Evaluation 2024 PODS 5.7529053e-05
6,545 Query Evaluation by Circuits 2022 PODS 5.7329641e-05
6,557 Ranked Enumeration of Join Queries with Projections 2022 VLDB 5.7298671e-05
6,562 JoinBoost: Grow Trees Over Normalized Data Using Only SQL 2023 VLDB 5.7287508e-05
6,585 Output-Optimal Algorithms for Join-Aggregate Queries 2025 PODS 5.7238683e-05
6,600 Mining Approximate Acyclic Schemes from Relations 2020 SIGMOD 5.721104e-05
6,826 Instance-Optimal Acyclic Join Processing Without Regret: Engineering the Yannakakis Algorithm in Column Stores 2025 VLDB 5.6566963e-05
6,900 Insert-Only versus Insert-Delete in Dynamic Query Evaluation 2024 PODS 5.6372471e-05
7,311 Computing the Difference of Conjunctive Queries Efficiently 2023 SIGMOD 5.5432326e-05
7,361 Space-Time Tradeoffs for Conjunctive Queries with Access Patterns 2023 PODS 5.528228e-05
7,459 Efficient Computation of Quantiles over Joins 2023 PODS 5.507465e-05
7,463 A Nearly Instance-optimal Differentially Private Mechanism for Conjunctive Queries 2022 PODS 5.505863e-05
7,936 Avoiding Materialisation for Guarded Aggregate Queries 2025 VLDB 5.4070923e-05
8,099 Tight Bounds of Circuits for Sum-Product Queries 2024 PODS 5.3739121e-05
8,106 Saibot: A Differentially Private Data Search Platform 2023 VLDB 5.3739121e-05
8,416 Efficient Distributed Hop-Constrained Path Enumeration on Large-Scale Graphs 2024 SIGMOD 5.3208725e-05
8,710 Galley: Modern Query Optimization for Sparse Tensor Programs 2025 SIGMOD 5.2705676e-05
Previous Page 1 / 2 Next

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.

Previous Page 1 / 1 Next

Semantically Similar Papers