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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
0.00017590408
Overall Rank
482 | 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
179 Holistic Twig Joins: Optimal XML Pattern Matching 2002 SIGMOD 0.00026617591
293 Bidirectional Expansion For Keyword Search on Graph Databases 2005 VLDB 0.00021933539
351 Indexing and Querying XML Data for Regular Path Expressions 2001 VLDB 0.00020241971
441 A Fast Index for Semistructured Data 2001 VLDB 0.00018206766
453 Stack-based Algorithms for Pattern Matching on DAGs 2005 VLDB 0.00017963727
919 Estimating the Selectivity of XML Path Expressions for Internet Scale Applications 2001 VLDB 0.00013077728
1,960 StatiX: Making XML Count 2002 SIGMOD 9.3083244e-05
2,048 On the Integration of Structure Indexes and Inverted Lists 2004 SIGMOD 9.1227281e-05
2,370 Statistical Synopses for Graph-Structured XML Databases 2002 SIGMOD 8.5582212e-05
2,746 Holistic Twig Joins on Indexed XML Documents 2003 VLDB 8.0587951e-05
3,185 Structure and Value Synopses for XML Data Graphs 2002 VLDB 7.5542356e-05
3,248 Approximate XML Query Answers 2004 SIGMOD 7.4912478e-05
3,388 On Wrapping Query Languages and Efficient XML Integration 2000 SIGMOD 7.3485664e-05
3,889 Mixed Mode XML Query Processing 2003 VLDB 6.9415444e-05
4,528 XPathLearner: An On-Line Self-Tuning Markov Histogram for XML Path Selectivity Estimation 2002 VLDB 6.5571518e-05
4,680 Efficient Evaluation of XQuery over Streaming Data 2005 VLDB 6.4703119e-05
5,425 Efficient Processing of XML Twig Queries with OR-Predicates 2004 SIGMOD 6.1332823e-05
5,817 Incremental Maintenance of XML Structural Indexes 2004 SIGMOD 5.9816421e-05
5,966 Optimizing the Secure Evaluation of Twig Queries 2002 VLDB 5.9300908e-05
6,073 Efficient Processing of XML Path Queries Using the Disk-based F&B Index 2005 VLDB 5.8935926e-05
6,567 Incorporating XSL Processing Into Database Engines 2002 VLDB 5.7443632e-05
7,539 Querying and Monitoring Distributed Business Processes 2008 VLDB 5.497794e-05
7,630 Why Off-the-Shelf RDBMSs are Better at XPath Than You Might Expect 2007 SIGMOD 5.4795145e-05
9,525 Tree-Pattern Queries on a Lightweight XML Processor 2005 VLDB 5.1667997e-05
10,071 ReCG: Bottom-Up JSON Schema Discovery Using a Repetitive Cluster-and-Generalize Framework 2024 VLDB 5.0849989e-05
12,795 Cost Based Plan Selection for XPath 2009 SIGMOD 4.9769913e-05
13,165 On Processing XML in LDAP 2001 VLDB 4.9769913e-05
13,169 Storage and Retrieval of XML Data Using Relational Databases 2001 VLDB 4.9769913e-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 0.0023943337
36 Accurate Estimation Of The Number Of Tuples Satisfying A Condition 1984 SIGMOD 0.00047864281
50 DataGuides: Enabling Query Formulation and Optimization in Semistructured Databases 1997 VLDB 0.0004311045
130 A Query Language and Optimization Techniques for Unstructured Data 1996 SIGMOD 0.00030306096
1,254 Semistructured Data 1997 PODS 0.00011331788
1,330 Catching the Boat with Strudel: Experiences with a Web-Site Management System 1998 SIGMOD 0.00010994625
3,126 Evaluating Queries with Generalized Path Expressions 1996 SIGMOD 7.6190081e-05
4,193 Cost-based Selection of Path Expression Processing Algorithms in Object-Oriented Databases 1996 VLDB 6.7415036e-05
4,511 A Blackboard Architecture for Query Optimization in Object Bases 1993 VLDB 6.5666591e-05
5,528 A Cost Model for Clustered Object-Oriented Databases 1995 VLDB 6.0911545e-05
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