ACM SIGMOD Anthology VLDB dblp.uni-trier.de

Finding Regular Simple Paths in Graph Databases.

Alberto O. Mendelzon, Peter T. Wood: Finding Regular Simple Paths in Graph Databases. VLDB 1989: 185-193
@inproceedings{DBLP:conf/vldb/MendelzonW89,
  author    = {Alberto O. Mendelzon and
               Peter T. Wood},
  editor    = {Peter M. G. Apers and
               Gio Wiederhold},
  title     = {Finding Regular Simple Paths in Graph Databases},
  booktitle = {Proceedings of the Fifteenth International Conference on Very
               Large Data Bases, August 22-25, 1989, Amsterdam, The Netherlands},
  publisher = {Morgan Kaufmann},
  year      = {1989},
  isbn      = {1-55860-101-5},
  pages     = {185-193},
  ee        = {db/conf/vldb/MendelzonW89.html},
  crossref  = {DBLP:conf/vldb/89},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}
BibTeX

Abstract

We consider the following problem: given a labelled directed graph G and a regular expression R, find all pairs of nodes connected by a simple path such that the concatenation of the labels along the path satisfies R. The problem is motivated by the observation that many recursive queries can be expressed in this form, and by the implementation of a query language, G+, based on this observation. We show that the problem is in general intractable, but present an algorithm than runs in polynomial time in the size of the graph when the regular expressionand the graph are free of conflicts. We also present a class of languages whose expressions can always be evaluated in time polynomial in the size of both the database and the expression, and characterize syntactically the expressions for such languages.

Copyright © 1989 by the VLDB Endowment. Permission to copy without fee all or part of this material is granted provided that the copies are not made or distributed for direct commercial advantage, the VLDB copyright notice and the title of the publication and its date appear, and notice is given that copying is by the permission of the Very Large Data Base Endowment. To copy otherwise, or to republish, requires a fee and/or special permission from the Endowment.

Online Paper

ACM SIGMOD Anthology

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Printed Edition

Peter M. G. Apers, Gio Wiederhold (Eds.): Proceedings of the Fifteenth International Conference on Very Large Data Bases, August 22-25, 1989, Amsterdam, The Netherlands. Morgan Kaufmann 1989, ISBN 1-55860-101-5
BibTeX

References

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Referenced by

  1. Chris Clifton, Hector Garcia-Molina, David Bloom: HyperFile: A Data and Query Model for Documents. VLDB J. 4(1): 45-86(1995)
  2. Keh-Chang Guh, Clement T. Yu: Efficient Query Processing for a Subset of Linear Recursive Binary Rules. IEEE Trans. Knowl. Data Eng. 6(5): 842-849(1994)
  3. Lil Mohan, Rangasami L. Kashyap: A Visual Query Language for Graphical Interaction with Schema-Intensive Databases. IEEE Trans. Knowl. Data Eng. 5(5): 843-858(1993)
  4. Shaul Dar, Rakesh Agrawal: Extending SQL with Generalized Transitive Closure Functionality. IEEE Trans. Knowl. Data Eng. 5(5): 799-812(1993)
  5. Marc Andries, Marc Gemis, Jan Paredaens, Inge Thyssens, Jan Van den Bussche: Concepts for Graph-Oriented Object Manipulation. EDBT 1992: 21-38
  6. Shaul Dar, Rakesh Agrawal, H. V. Jagadish: Optimization of Generalized Transitive Closure Queries. ICDE 1991: 345-354
  7. Peter T. Wood: Factoring Augmented Regular Chain Programs. VLDB 1990: 255-263
  8. Chris Clifton, Hector Garcia-Molina: Indexing in a Hypertext Database. VLDB 1990: 36-49
  9. Mariano P. Consens, Alberto O. Mendelzon: The G+/GraphLog Visual Query System. SIGMOD Conference 1990: 388
  10. Mihalis Yannakakis: Graph-Theoretic Methods in Database Theory. PODS 1990: 230-242
  11. Mariano P. Consens, Alberto O. Mendelzon: GraphLog: a Visual Formalism for Real Life Recursion. PODS 1990: 404-416
BibTeX
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