Matching Twigs in Probabilistic XML

Summary: Twig queries with projection over probabilistic XML: tractable under data complexity; projection intractable in other models. Threshold-based partial answers (maximal by probability) and twig evaluation without projection under query-and-data complexity. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID: 9773
Venue: VLDB
Year: 2007
Pagerank: 7.7839831e-05
Overall Rank: 3,075 | 78.91%
DOI: 10.14778/1325851.1325854

Incoming Non-self Citations Over Time

Authors

1. Benny Kimelfeld (Hebrew University)
2. Yehoshua Sagiv (Hebrew University)

BibTeX Citation

@article{kimelfeld_vldb07,
        title = {{Matching Twigs in Probabilistic XML}},
        author = {Kimelfeld, Benny and Sagiv, Yehoshua},
        journal = {PVLDB},
        series = {{VLDB} '07},
        volume = {30},
        number = {2},
        pages = {27--38},
        doi = {10.14778/1325851.1325854},
        url = {https://doi.org/10.14778/1325851.1325854},
        year = {2007}
}

Incoming Citations (Sorted by Pagerank)

Showing 9 of 9 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank
238	MCDB: A Monte Carlo Approach to Managing Uncertain Data	2008	SIGMOD	0.0002369322
5,346	Running Tree Automata on Probabilistic XML	2009	PODS	6.257995e-05
6,508	Probabilistic XML via Markov Chains	2010	VLDB	5.8576101e-05
6,587	Selective Provenance for Datalog Programs Using Top-K Queries	2015	VLDB	5.8333865e-05
6,917	Query Efficiency in Probabilistic XML Models	2008	SIGMOD	5.7400564e-05
8,761	Incorporating Constraints in Probabilistic XML	2008	PODS	5.3766157e-05
12,410	Certain Answers for XML Queries	2010	PODS	5.093636e-05
12,470	Navigating in Complex Mashed-Up Applications	2010	VLDB	5.093636e-05
12,478	Optimal Top-K Query Evaluation for Weighted Business Processes	2010	VLDB	5.093636e-05

Outgoing Citations (Sorted by Pagerank)

Showing 13 of 13 cited papers.

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

Rank	Cited Paper	Year	Venue	Pagerank
50	Efficient Query Evaluation on Probabilistic Databases	2004	VLDB	0.00043596705
414	On the Complexity of Database Queries (Extended Abstract)	1997	PODS	0.00018893507
557	The Theory of Probabilistic Databases	1987	VLDB	0.00016541752
644	The Complexity of Query Reliability	1998	PODS	0.00015367965
1,041	The Dichotomy of Conjunctive Queries on Probabilistic Structures	2007	PODS	0.00012453494
1,176	Outerjoins as Disjunctions	1994	SIGMOD	0.00011809075
2,569	ProTDB: Probabilistic Data in XML	2002	VLDB	8.4090027e-05
2,791	Integrating Information by Outerjoins and Full Disjunctions (Extended Abstract)	1996	PODS	8.119781e-05
3,318	On the Complexity of Managing Probabilistic XML Data	2007	PODS	7.5247776e-05
4,187	Maximally Joining Probabilistic Data	2007	PODS	6.8456588e-05
6,373	Full Disjunctions: Polynomial-Delay Iterators in Action	2006	VLDB	5.8946564e-05
8,071	An Incremental Algorithm for Computing Ranked Full Disjunctions	2005	PODS	5.4935818e-05
9,646	Computing Full Disjunctions	2003	PODS	5.243371e-05

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8	5,298	Efficient Processing of XML Twig Queries with OR-Predicates	2004	SIGMOD
9	3,318	On the Complexity of Managing Probabilistic XML Data	2007	PODS
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