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Query Optimization for XML

Summary: XML query optimization in Lore: a cost-based optimizer tailored for semistructured XML data. Introduces XML-specific indexing, refined statistics, and a custom plan space with enumeration and heuristics; implemented with preliminary results. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID
h0a895cf4257b403c
Venue
VLDB
Year
1999
Pagerank
0.00017537362
Overall Rank
483 | 96.77%
DOI
-

Incoming Non-self Citations Over Time

Authors

BibTeX Citation

@article{mchugh_vldb99,
        title = {{Query Optimization for XML}},
        author = {McHugh, Jason and Widom, Jennifer},
        journal = {PVLDB},
        series = {{VLDB} '99},
        pages = {315--326},
        year = {1999}
}

Incoming Citations (Sorted by Pagerank)

Showing 28 of 28 citing papers.

Rank Citing Paper Year Venue Pagerank
180 Holistic Twig Joins: Optimal XML Pattern Matching 2002 SIGMOD 0.00026534482
294 Bidirectional Expansion For Keyword Search on Graph Databases 2005 VLDB 0.00021884041
352 Indexing and Querying XML Data for Regular Path Expressions 2001 VLDB 0.00020179814
445 A Fast Index for Semistructured Data 2001 VLDB 0.0001815112
456 Stack-based Algorithms for Pattern Matching on DAGs 2005 VLDB 0.00017946233
919 Estimating the Selectivity of XML Path Expressions for Internet Scale Applications 2001 VLDB 0.00013042589
1,969 StatiX: Making XML Count 2002 SIGMOD 9.2805411e-05
2,058 On the Integration of Structure Indexes and Inverted Lists 2004 SIGMOD 9.0944201e-05
2,378 Statistical Synopses for Graph-Structured XML Databases 2002 SIGMOD 8.5315761e-05
2,756 Holistic Twig Joins on Indexed XML Documents 2003 VLDB 8.0322898e-05
3,195 Structure and Value Synopses for XML Data Graphs 2002 VLDB 7.530952e-05
3,263 Approximate XML Query Answers 2004 SIGMOD 7.4679565e-05
3,400 On Wrapping Query Languages and Efficient XML Integration 2000 SIGMOD 7.324283e-05
3,900 Mixed Mode XML Query Processing 2003 VLDB 6.9197487e-05
4,545 XPathLearner: An On-Line Self-Tuning Markov Histogram for XML Path Selectivity Estimation 2002 VLDB 6.5366364e-05
4,694 Efficient Evaluation of XQuery over Streaming Data 2005 VLDB 6.4490159e-05
5,443 Efficient Processing of XML Twig Queries with OR-Predicates 2004 SIGMOD 6.1130037e-05
5,831 Incremental Maintenance of XML Structural Indexes 2004 SIGMOD 5.9624819e-05
5,978 Optimizing the Secure Evaluation of Twig Queries 2002 VLDB 5.9104822e-05
6,087 Efficient Processing of XML Path Queries Using the Disk-based F&B Index 2005 VLDB 5.8741996e-05
6,577 Incorporating XSL Processing Into Database Engines 2002 VLDB 5.7253688e-05
7,556 Querying and Monitoring Distributed Business Processes 2008 VLDB 5.4796165e-05
7,645 Why Off-the-Shelf RDBMSs are Better at XPath Than You Might Expect 2007 SIGMOD 5.4613959e-05
9,552 Tree-Pattern Queries on a Lightweight XML Processor 2005 VLDB 5.1497999e-05
10,105 ReCG: Bottom-Up JSON Schema Discovery Using a Repetitive Cluster-and-Generalize Framework 2024 VLDB 5.0681847e-05
12,838 Cost Based Plan Selection for XPath 2009 SIGMOD 4.9605343e-05
13,206 On Processing XML in LDAP 2001 VLDB 4.9605343e-05
13,210 Storage and Retrieval of XML Data Using Relational Databases 2001 VLDB 4.9605343e-05
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Outgoing Citations (Sorted by Pagerank)

Showing 10 of 10 cited papers.

Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.

Rank Cited Paper Year Venue Pagerank
1 Access Path Selection in a Relational Database Management System 1979 SIGMOD 0.0023948467
36 Accurate Estimation Of The Number Of Tuples Satisfying A Condition 1984 SIGMOD 0.00047770864
50 DataGuides: Enabling Query Formulation and Optimization in Semistructured Databases 1997 VLDB 0.00042977538
131 A Query Language and Optimization Techniques for Unstructured Data 1996 SIGMOD 0.000302173
1,258 Semistructured Data 1997 PODS 0.00011301839
1,339 Catching the Boat with Strudel: Experiences with a Web-Site Management System 1998 SIGMOD 0.0001096441
3,135 Evaluating Queries with Generalized Path Expressions 1996 SIGMOD 7.5943566e-05
4,213 Cost-based Selection of Path Expression Processing Algorithms in Object-Oriented Databases 1996 VLDB 6.7198499e-05
4,528 A Blackboard Architecture for Query Optimization in Object Bases 1993 VLDB 6.5456474e-05
5,549 A Cost Model for Clustered Object-Oriented Databases 1995 VLDB 6.071306e-05
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