Multiversion Divergence Control of Time Fuzziness.

Calton Pu, Miu K. Tsang, Kun-Lung Wu, Philip S. Yu: Multiversion Divergence Control of Time Fuzziness. CIKM 1994: 195-202

@inproceedings{DBLP:conf/cikm/PuTWY94,
  author    = {Calton Pu and
               Miu K. Tsang and
               Kun-Lung Wu and
               Philip S. Yu},
  title     = {Multiversion Divergence Control of Time Fuzziness},
  booktitle = {Proceedings of the Third International Conference on Information
               and Knowledge Management (CIKM'94), Gaithersburg, Maryland, November
               29 - December 2, 1994},
  publisher = {ACM},
  year      = {1994},
  pages     = {195-202},
  ee        = {db/conf/cikm/PuTWY94.html, http://doi.acm.org/10.1145/191246.191278},
  crossref  = {DBLP:conf/cikm/94},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

BibTeX

Abstract

Epsilon Serializability (ESR) has been proposed to manage and control inconsistency in extending the classic transaction processing. ESR increases system concurrency by tolerating a bounded amount of inconsistency. In this paper, we present multiversion divergence control (mvDC) algorithms that support ESR with not only value but also time fuzziness in multiversion databases. Unlike value fuzziness, accumulating time fuzziness is semantically different. A simple summation of the length of two time intervals may either underestimate the total time fuzziness, resulting in incorrect execution, or overestimate the total time fuzziness, unnecessarily degrading the effectiveness of mvESR. We present a new operation, called TimeUnion, to accurately accumulate the total time fuzziness. Because of the accurate control of time and value fuzziness by the mvDC algorithm, mvESR is very suitable for the use of multiversion databases for real-time applications that may tolerate a limited degree of data inconsistency but prefer more data recency.

Copyright © 1994 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.

ACM SIGMOD Anthology

CDROM Version: Load the CDROM "Volume 2 Issue 4, CIKM, DOLAP, GIS, SIGFIDET, ..." and ...

Windows: Click the letter of your CD drive
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Mac: Click here
UNIX/LINUX: mount the CD and click on the path of your mount point:
/Anthology/An2-4 or /cdrom

DVD Version: Load ACM SIGMOD Anthology DVD 1" and ...

Windows: Click the letter of your CD drive
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Mac: Click here
UNIX/LINUX: mount the DVD and click on the path of your mount point:
/Anthology/aDVD1 or /dvd

BibTeX

Printed Edition

Proceedings of the Third International Conference on Information and Knowledge Management (CIKM'94), Gaithersburg, Maryland, November 29 - December 2, 1994. ACM 1994
Contents BibTeX

Online Edition

Citation Page BibTeX

BibTeX

ACM SIGMOD Anthology - DBLP: [Home | Search: Author, Title | Conferences | Journals]

CIKM 1994 Proceedings, ACM SIGMOD Anthology: Copyright © by ACM (info@acm.org), Corrections: anthology@acm.org
DBLP: Copyright © by Michael Ley (ley@uni-trier.de), last change: Sat May 16 23:01:45 2009