Efficient Denial Constraint Discovery with Hydra

Summary: Hydra automatically discovers all valid denial constraints, unifying diverse integrity constraints and business rules. Its novel algorithm reduces tuple-scaling from quadratic to empirically linear, yielding orders-of-magnitude speedups over prior DC discovery methods. (summarized by gpt-5.6-luna on Jul 24 2026)

Paper ID: h523f31a343582ac5
Venue: VLDB
Year: 2018
Pagerank: 0.00010021689
Overall Rank: 1,627 | 89.10%
DOI: 10.14778/3157794.3157800

Incoming Non-self Citations Over Time

Authors

1. Tobias Bleifuß (Hasso Plattner Institute)
2. Sebastian Kruse (Hasso Plattner Institute)
3. Felix Naumann (Hasso Plattner Institute)

BibTeX Citation

@article{bleifu_vldb18,
        title = {{Efficient Denial Constraint Discovery with Hydra}},
        author = {Bleifuß, Tobias and Kruse, Sebastian and Naumann, Felix},
        journal = {PVLDB},
        series = {{VLDB} '18},
        volume = {11},
        number = {3},
        pages = {311--323},
        doi = {10.14778/3157794.3157800},
        url = {https://doi.org/10.14778/3157794.3157800},
        year = {2018}
}

Incoming Citations (Sorted by Pagerank)

Showing 31 of 31 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank
1,980	Discovery of Approximate (and Exact) Denial Constraints	2020	VLDB	9.2527187e-05
2,451	Approximate Denial Constraints	2020	VLDB	8.4303553e-05
3,277	Automatic Data Repair: Are We Ready to Deploy?	2024	VLDB	7.4527106e-05
3,304	Kamino: Constraint-Aware Differentially Private Data Synthesis	2021	VLDB	7.4211095e-05
4,092	Fast Algorithms for Denial Constraint Discovery	2023	VLDB	6.7958327e-05
5,156	Distributed implementations of dependency discovery algorithms	2019	VLDB	6.2366568e-05
5,303	Fast Approximate Denial Constraint Discovery	2023	VLDB	6.1758652e-05
5,879	Properties of Inconsistency Measures for Databases	2021	SIGMOD	5.9438507e-05
6,438	CtxPipe: Context-aware Data Preparation Pipeline Construction for Machine Learning	2024	SIGMOD	5.7678369e-05
6,877	Fast Incremental Discovery of Pointwise Order Dependencies	2020	VLDB	5.6429454e-05
7,318	Discovering Association Rules from Big Graphs	2022	VLDB	5.5411422e-05
7,496	Fast Detection of Denial Constraint Violations	2022	VLDB	5.4968024e-05
7,518	Conformance Constraint Discovery: Measuring Trust in Data-Driven Systems	2021	SIGMOD	5.4894144e-05
7,633	BugDoc: Algorithms to Debug Computational Processes	2020	SIGMOD	5.4635757e-05
8,227	Hitting Set Enumeration with Partial Information for Unique Column Combination Discovery	2020	VLDB	5.3583309e-05
8,881	Rapidash: Efficient Detection of Constraint Violations	2024	VLDB	5.2442249e-05
9,634	GIDCL: A Graph-Enhanced Interpretable Data Cleaning Framework with Large Language Models	2024	SIGMOD	5.1354312e-05
9,645	Discovering Top-k Rules using Subjective and Objective Criteria	2023	SIGMOD	5.1332977e-05
9,841	Incremental Detection of Denial Constraint Violations	2025	VLDB	5.1064323e-05
9,847	Making It Tractable to Catch Duplicates and Conflicts in Graphs	2023	SIGMOD	5.1064323e-05
10,146	Efficient Differential Dependency Discovery	2024	VLDB	5.0597449e-05
10,223	Discovering Top-k Relevant and Diversified Rules	2024	SIGMOD	5.0460607e-05
10,373	Parallel Rule Discovery from Large Datasets by Sampling	2022	SIGMOD	5.0005386e-05
10,517	Discovery of Denial Constraints with Hardware Acceleration	2026	SIGMOD	4.9605343e-05
10,842	Discovering Approximate Denial Constraints in Large Databases	2026	VLDB	4.9605343e-05
11,256	Incremental Rule Discovery in Response to Parameter Updates	2025	SIGMOD	4.9605343e-05
11,269	Computing Inconsistency Measures Under Differential Privacy	2025	SIGMOD	4.9605343e-05
11,378	Meaningful Data Erasure in the Presence of Dependencies	2025	VLDB	4.9605343e-05
11,381	How and Why False Denial Constraints are Discovered	2025	VLDB	4.9605343e-05
11,605	Capturing More Associations by Referencing External Graphs	2024	VLDB	4.9605343e-05
11,798	Learning and Deducing Temporal Orders	2023	VLDB	4.9605343e-05

Outgoing Citations (Sorted by Pagerank)

Showing 9 of 9 cited papers.

Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.

Rank	Cited Paper	Year	Venue	Pagerank
348	Discovering Denial Constraints	2013	VLDB	0.00020216677
602	A Hybrid Approach to Functional Dependency Discovery	2016	SIGMOD	0.00015670535
727	Functional Dependency Discovery: An Experimental Evaluation of Seven Algorithms	2015	VLDB	0.00014426954
769	The LLUNATIC Data-Cleaning Framework	2013	VLDB	0.00014091996
1,399	Data Profiling with Metanome	2015	VLDB	0.0001076306
2,305	GORDIAN: Efficient and Scalable Discovery of Composite Keys	2006	VLDB	8.6550507e-05
3,307	Lightning Fast and Space Efficient Inequality Joins	2015	VLDB	7.4203464e-05
4,245	Scalable Discovery of Unique Column Combinations	2014	VLDB	6.6958006e-05
4,476	Effective and Complete Discovery of Order Dependencies via Set-based Axiomatization	2017	VLDB	6.5696859e-05

Semantically Similar Papers

#	Overall Rank	Paper	Year	Venue
1	7,496	Fast Detection of Denial Constraint Violations	2022	VLDB
2	8,881	Rapidash: Efficient Detection of Constraint Violations	2024	VLDB
3	9,841	Incremental Detection of Denial Constraint Violations	2025	VLDB
4	10,517	Discovery of Denial Constraints with Hardware Acceleration	2026	SIGMOD
5	11,076	LIMA: Denial Constraint Discovery in Large Dynamic Databases	2026	VLDB
6	5,303	Fast Approximate Denial Constraint Discovery	2023	VLDB
7	348	Discovering Denial Constraints	2013	VLDB
8	10,842	Discovering Approximate Denial Constraints in Large Databases	2026	VLDB
9	1,980	Discovery of Approximate (and Exact) Denial Constraints	2020	VLDB
10	4,092	Fast Algorithms for Denial Constraint Discovery	2023	VLDB