Expressive Languages for Path Queries over Graph-Structured Data
Summary: Introduces ECRPQs: extend CRPQs with path variables in heads and regular relations over tuples of paths, enabling path outputs and expressive relations among paths for tasks like semantic associations and pattern/sequence alignment. Presents automata-based representations, analyzes data/combined complexity and containment, and identifies syntactic restrictions plus FO and arithmetic extensions (length/count constraints) to trade expressiveness for lower complexity. (summarized by gpt-5-mini on Feb 09 2026)
Incoming Non-self Citations Over Time
Authors
- 1. Pablo Barceló
- 2. Carlos Hurtado
- 3. Leonid Libkin
- 4. Peter Wood
Incoming Citations (Sorted by Pagerank)
Showing 24 of 24 citing papers.
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Outgoing Citations (Sorted by Pagerank)
Showing 3 of 3 cited papers.
Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 256 | GraphLog: a Visual Formalism for Real Life Recursion | 1990 | PODS | 0.00030259041 |
| 810 | Query Containment for Conjunctive Queries With Regular Expressions | 1998 | PODS | 0.00016428374 |
| 1,870 | Flexible Queries over Semistructured Data | 2001 | PODS | 0.00010263799 |
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Semantically Similar Papers
| Overall Rank | Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 363 | A Graphical Query Language Supporting Recursion | 1987 | SIGMOD | 0.00025715157 |
| 6,820 | Conjunctive Regular Path Queries with String Variables | 2020 | PODS | 4.9157306e-05 |
| 5,424 | A Trichotomy for Regular Simple Path Queries on Graphs | 2013 | PODS | 5.5126983e-05 |
| 11,014 | Efficient Regular Simple Path Queries under Transitive Restricted Expressions | 2024 | VLDB | 4.1945683e-05 |
| 3,652 | The Complexity of Evaluating Path Expressions in SPARQL | 2012 | PODS | 6.875313e-05 |
| 8,804 | Conjunctive Regular Path Queries under Injective Semantics | 2023 | PODS | 4.4468701e-05 |
| 4,946 | Querying Graph Patterns | 2011 | PODS | 5.8149362e-05 |
| 1,444 | Finding Regular Simple Paths in Graph Databases | 1989 | VLDB | 0.00011946075 |
| 11,326 | Data Path Queries over Embedded Graph Databases | 2022 | PODS | 4.1945683e-05 |
| 1,037 | Querying Graph Databases | 2013 | PODS | 0.00014502493 |