Testability of Homomorphism Inadmissibility: Property Testing Meets Database Theory
Summary: Apply property testing to homomorphism inadmissibility for conjunctive queries: with constant queries and one-sided error, distinguish A→B from B that is far (needs deleting a constant fraction of tuples) from admitting a homomorphism. Main result: constant-query one-sided testability iff core(A) is α-acyclic; injective variant also testable for α-acyclic A, subsuming subgraph-freeness results. (summarized by gpt-5-mini on Feb 09 2026)
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Authors
- 1. Hubie Chen
- 2. Yuichi Yoshida
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Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 335 | Optimization of Real Conjunctive Queries | 1993 | PODS | 0.00027012705 |
| 432 | On the Complexity of Database Queries (Extended Abstract) | 1997 | PODS | 0.00023349408 |
| 12,039 | The Fine Classification of Conjunctive Queries and Parameterized Logarithmic Space Complexity | 2013 | PODS | 4.1905499e-05 |
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