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Author Naughton, Jeffrey F. ♦ Ramakrishnan, Raghu
Source ACM Digital Library
Content type Text
Publisher Association for Computing Machinery (ACM)
File Format PDF
Copyright Year ©1994
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Deductive database ♦ Space optimization
Abstract Bottom-up evaluation of deductive database programs has the advantage that it avoids repeated computations by storing all intermediate results and replacing recomputation by table lookup. However, in general, storing all intermediate results for the duration of a computation wastes space. In this paper, we propose an evaluation scheme that avoids recomputation, yet for a fairly general class of programs at any given time stores only a small subset of the facts generated. The results constitute a significant first step in compile-time garbage collection for bottom-up evaluation of deductive database programs.
ISSN 00045411
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1994-11-01
Publisher Place New York
e-ISSN 1557735X
Journal Journal of the ACM (JACM)
Volume Number 41
Issue Number 6
Page Count 27
Starting Page 1151
Ending Page 1177


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Source: ACM Digital Library