Conjunctive Regular Path Queries with String Variables
Summary: CXRPQ extends CRPQs by adding string variables (backreferences) to form conjunctive xregex path queries, enabling inter-path dependencies beyond CRPQs. General data complexity is PSpace-hard; three NL-data fragments exist with combined ExpSpace/PSpace/NP; CXRPQ is compared to CRPQs, unions of CRPQs, and ECRPQs. (summarized by gpt-5-nano on Feb 09 2026)
Incoming Non-self Citations Over Time
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Incoming Citations (Sorted by Pagerank)
Showing 1 of 1 citing papers.
| Rank | Citing Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 9,494 | When is the Evaluation of Extended CRPQ Tractable? | 2022 | PODS | 4.3300131e-05 |
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Outgoing Citations (Sorted by Pagerank)
Showing 7 of 7 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 | 0.00030241337 |
| 364 | A Graphical Query Language Supporting Recursion | 1987 | SIGMOD | 0.00025657601 |
| 657 | An Analytical Study of Large SPARQL Query Logs | 2018 | VLDB | 0.00018581389 |
| 808 | Query Containment for Conjunctive Queries With Regular Expressions | 1998 | PODS | 0.000164132 |
| 1,040 | Querying Graph Databases | 2013 | PODS | 0.00014483577 |
| 1,812 | Expressive Languages for Path Queries over Graph-Structured Data | 2010 | PODS | 0.00010458164 |
| 1,940 | Split-Correctness in Information Extraction | 2019 | PODS | 0.00010019194 |
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Semantically Similar Papers
| Overall Rank | Paper | Year | Venue | Pagerank |
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| 1,662 | Conjunctive Queries over Trees | 2004 | PODS | 0.00010966423 |
| 5,415 | Query Containment and Rewriting Using Views for Regular Path Queries Under Constraints | 2003 | PODS | 5.5188622e-05 |
| 2,345 | Rewriting of Regular Expressions and Regular Path Queries | 1999 | PODS | 8.9933611e-05 |
| 5,435 | A Trichotomy for Regular Simple Path Queries on Graphs | 2013 | PODS | 5.5074113e-05 |
| 11,017 | Efficient Regular Simple Path Queries under Transitive Restricted Expressions | 2024 | VLDB | 4.1905499e-05 |
| 8,803 | Conjunctive Regular Path Queries under Injective Semantics | 2023 | PODS | 4.4426077e-05 |
| 3,659 | The Complexity of Evaluating Path Expressions in SPARQL | 2012 | PODS | 6.8684407e-05 |
| 10,361 | Minimizing Conjunctive Regular Path Queries | 2025 | PODS | 4.1905499e-05 |
| 9,494 | When is the Evaluation of Extended CRPQ Tractable? | 2022 | PODS | 4.3300131e-05 |
| 1,812 | Expressive Languages for Path Queries over Graph-Structured Data | 2010 | PODS | 0.00010458164 |