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Author: Yangjun Chen

Affiliation: University of Winnipeg, Canada

ISBN: 978-972-8865-69-6

ISSN: 2184-2833

Keyword(s): XML document, Tree pattern queries, Tree embedding, Constraint satisfaction problem, NP-complete.

Related Ontology Subjects/Areas/Topics: Applications ; Data Engineering ; Information Retrieval ; Ontologies and the Semantic Web ; Pattern Recognition ; Software Engineering

Abstract: The evaluation of Xpath expressions can be handled as a tree embedding problem. In this paper, we propose two strategies on this issue. One is ordered-tree embedding based and the other is unordered-tree embedding based. For the ordered-tree embedding, our algorithm needs only O(|T| x |P|) time and (|T| x |P|) space, where |T| and |P| stands for the numbers of the nodes in the target tree T and the pattern tree P, respectively. For the unordered-tree embedding, we give an algorithm that needs (|T| x |P|)x 22k) time, where k is the largest out-degree of any node in P.

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Paper citation in several formats:
Chen Y. and (2006). ON THE EVALUATION OF TREE PATTERN QUERIES.In Proceedings of the First International Conference on Software and Data Technologies - Volume 2: ICSOFT, ISBN 978-972-8865-69-6, pages 79-85. DOI: 10.5220/0001308700790085

@conference{icsoft06,
author={Yangjun Chen},
title={ON THE EVALUATION OF TREE PATTERN QUERIES},
booktitle={Proceedings of the First International Conference on Software and Data Technologies - Volume 2: ICSOFT,},
year={2006},
pages={79-85},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001308700790085},
isbn={978-972-8865-69-6},
}

TY - CONF

JO - Proceedings of the First International Conference on Software and Data Technologies - Volume 2: ICSOFT,
TI - ON THE EVALUATION OF TREE PATTERN QUERIES
SN - 978-972-8865-69-6
AU - Chen, Y.
PY - 2006
SP - 79
EP - 85
DO - 10.5220/0001308700790085

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