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Speeding up the Counting Method by Computing Heritage Functions in Topological Order.

Yangjun Chen: Speeding up the Counting Method by Computing Heritage Functions in Topological Order. ADBIS 1997: 108-116
@inproceedings{DBLP:conf/adbis/Chen97,
  author    = {Yangjun Chen},
  title     = {Speeding up the Counting Method by Computing Heritage Functions
               in Topological Order},
  booktitle = {Proceedings of the First East-European Symposium on Advances
               in Databases and Information Systems (ADBIS'97), St.-Petersburg,
               September 2-5, 1997. Volume 1: Regular Papers},
  publisher = {Nevsky Dialect},
  year      = {1997},
  pages     = {108-116},
  ee        = {db/conf/adbis/Chen97.html},
  crossref  = {DBLP:conf/adbis/97},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}
BibTeX

Abstract

In this paper, an optimal method for evaluating linear recursive datalog queries is proposed. The method is based on the concepts of so-called heritage appearance function and heritage selection function. By computing such functions in topological order, a counting-like strategy can be implemented, which requires only linear time for non-cyclic data.

Copyright © 1997 by the ACM, Inc., used by permission. Permission to make digital or hard copies is granted provided that copies are not made or distributed for profit or direct commercial advantage, and that copies show this notice on the first page or initial screen of a display along with the full citation.


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