Conjunctive Regular Path Queries under Injective Semantics
Summary: Introduces atom- and query-injective semantics for CRPQs (injective-homomorphism generalizations of RPQ simple-path semantics) and studies evaluation and containment. Key findings: containment undecidable for atom-injective, PSPACE-complete for query-injective (vs EXPSPACE under standard semantics) and complete complexity maps for CQs and finite-language CRPQ fragments. (summarized by gpt-5-mini on Feb 09 2026)
Incoming Non-self Citations Over Time
Authors
- 1. Diego Figueira
- 2. Miguel Romero
Incoming Citations (Sorted by Pagerank)
Showing 3 of 3 citing papers.
| Rank | Citing Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 9,744 | Output-Sensitive Evaluation of Regular Path Queries | 2025 | PODS | 4.2897489e-05 |
| 10,235 | Repairing Property Graphs under PG-Constraints | 2026 | VLDB | 4.1945683e-05 |
| 10,349 | Minimizing Conjunctive Regular Path Queries | 2025 | PODS | 4.1945683e-05 |
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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 |
|---|---|---|---|---|
| 363 | A Graphical Query Language Supporting Recursion | 1987 | SIGMOD | 0.00025715157 |
| 690 | An Analytical Study of Large SPARQL Query Logs | 2018 | VLDB | 0.00018099792 |
| 789 | Cypher: An Evolving Query Language for Property Graphs | 2018 | SIGMOD | 0.00016634256 |
| 810 | Query Containment for Conjunctive Queries With Regular Expressions | 1998 | PODS | 0.00016428374 |
| 964 | G-CORE: A Core for Future Graph Query Languages | 2018 | SIGMOD | 0.0001497475 |
| 1,037 | Querying Graph Databases | 2013 | PODS | 0.00014502493 |
| 1,812 | Expressive Languages for Path Queries over Graph-Structured Data | 2010 | PODS | 0.00010467069 |
| 2,505 | Graph Pattern Matching in GQL and SQL/PGQ | 2022 | SIGMOD | 8.634551e-05 |
| 8,827 | The Complexity of Regular Trail and Simple Path Queries on Undirected Graphs | 2022 | PODS | 4.4411907e-05 |
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Semantically Similar Papers
| Overall Rank | Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 10,002 | Bag Semantics Query Containment: The CQ vs. UCQ Case and Other Stories | 2026 | PODS | 4.1945683e-05 |
| 5,406 | Query Containment and Rewriting Using Views for Regular Path Queries Under Constraints | 2003 | PODS | 5.5243825e-05 |
| 1,037 | Querying Graph Databases | 2013 | PODS | 0.00014502493 |
| 810 | Query Containment for Conjunctive Queries With Regular Expressions | 1998 | PODS | 0.00016428374 |
| 1,490 | On the Decidability of Query Containment under Constraints | 1998 | PODS | 0.00011699154 |
| 6,274 | Classification of Annotation Semirings over Query Containment | 2012 | PODS | 5.1321227e-05 |
| 9,493 | When is the Evaluation of Extended CRPQ Tractable? | 2022 | PODS | 4.3341665e-05 |
| 11,326 | Data Path Queries over Embedded Graph Databases | 2022 | PODS | 4.1945683e-05 |
| 10,349 | Minimizing Conjunctive Regular Path Queries | 2025 | PODS | 4.1945683e-05 |
| 1,812 | Expressive Languages for Path Queries over Graph-Structured Data | 2010 | PODS | 0.00010467069 |