Covering Indexes for XML Queries: Bisimulation - Simulation = Negation
Summary: Covering indexes for XML queries via bisimulation and simulation. CXPath+ eval by simulating the query-tree on the document graph; the simulation quotient is the minimal index for BPQ+, and ignoring idrefs yields the TPQ index; sim ≤ bisimulation, often exponentially smaller, with negation-free cases shrinking further. (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 2 of 2 citing papers.
| Rank | Citing Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 7,236 | Sum-Max Monotonic Ranked Joins for Evaluating Top-K Twig Queries on Weighted Data Graphs | 2007 | VLDB | 4.7877732e-05 |
| 12,500 | Structural Characterizations of the Semantics of XPath as Navigation Tool on a Document | 2006 | PODS | 4.1905499e-05 |
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Outgoing Citations (Sorted by Pagerank)
Showing 4 of 4 cited papers.
Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 712 | Efficient Algorithms for Processing XPath Queries | 2002 | VLDB | 0.00017714027 |
| 812 | Covering Indexes for Branching Path Queries | 2002 | SIGMOD | 0.00016343476 |
| 1,236 | Minimization of Tree Pattern Queries | 2001 | SIGMOD | 0.00013107769 |
| 2,957 | Efficient Algorithms for Minimizing Tree Pattern Queries | 2002 | SIGMOD | 7.8143379e-05 |
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Semantically Similar Papers
| Overall Rank | Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 12,348 | Efficient Rewriting of XPath Queries Using Query Set Specifications | 2009 | VLDB | 4.1905499e-05 |
| 9,535 | Answering Tree Pattern Queries Using Views | 2006 | VLDB | 4.3226836e-05 |
| 12,289 | XPath Whole Query Optimization | 2010 | VLDB | 4.1905499e-05 |
| 5,950 | Minimization of Tree Pattern Queries with Constraints | 2008 | SIGMOD | 5.2551296e-05 |
| 1,662 | Conjunctive Queries over Trees | 2004 | PODS | 0.00010966423 |
| 4,624 | On Testing Satisfiability of Tree Pattern Queries | 2004 | VLDB | 6.034764e-05 |
| 4,568 | Rewriting XPath Queries Using Materialized Views | 2005 | VLDB | 6.0725918e-05 |
| 2,509 | Path Queries on Compressed XML | 2003 | VLDB | 8.6250598e-05 |
| 3,089 | On the minimization of Xpath queries | 2003 | VLDB | 7.5938563e-05 |
| 812 | Covering Indexes for Branching Path Queries | 2002 | SIGMOD | 0.00016343476 |