Polynomial Time Fragments of XPath with Variables

Summary: Identifies a fragment of Core XPath 2.0 with variables that remains n-ary FO-complete (captures first-order queries modulo linear-time transformations). Proves this fragment admits polynomial-time query evaluation, isolating tractable XPath-with-variables cases. (summarized by gpt-5-mini on Feb 09 2026)

Paper ID: 1429
Venue: PODS
Year: 2007
Pagerank: -
Overall Rank: 13,786 | 5.42%
DOI: 10.1145/1265530.1265559

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Authors

1. Emmanuel Filiot (INRIA)
2. Joachim Niehren (INRIA)
3. Jean-Marc Talbot (University of Provence)
4. Sophie Tison (University of Lille 1)

BibTeX Citation

@inproceedings{filiot_pods07,
        address = {New York, NY, USA},
        series = {{PODS} '07},
        title = {{Polynomial Time Fragments of XPath with Variables}},
        url = {https://dl.acm.org/doi/10.1145/1265530.1265559},
        doi = {10.1145/1265530.1265559},
        booktitle = {Proceedings of the {ACM} {SIGMOD} Symposium on {Principles} of {Database} {Systems}},
        publisher = {Association for Computing Machinery},
        author = {Filiot, Emmanuel and Niehren, Joachim and Talbot, Jean-Marc and Tison, Sophie},
        year = {2007}
}

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