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Author, Editor(s)

Author(s):

Werner, Andreas
Bockmayr, Alexander
Krischer, Stefan

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BibTeX cite key*:

WernerBockmayrKrischer98

Title

Title*:

How to realize LSE narrowing

Journal

Journal Title*:

New Generation Computing

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Language:

English

Publisher

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Name:


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Address:


ISSN:

0288-3635

Vol, No, pp, Date

Volume*:

16

Number:

4

Publishing Date:

1998

Pages*:

397-434

Number of
VG Pages:


Page Start:


Page End:


Sequence Number:


DOI:


Note, Abstract, ©

Note:


(LaTeX) Abstract:

Narrowing is a complete unification procedure for equational theories
defined by canonical term rewriting systems. It is also the operational
semantics of various logic and functional programming languages.
In an earlier paper, we introduced the LSE narrowing strategy which
is complete for arbitrary
canonical rewriting systems and optimal in the sense that two
different LSE narrowing derivations cannot generate the same narrowing
substitution. LSE narrowing improves all previously known strategies
for the class of arbitrary canonical systems.

LSE narrowing detects redundant derivations by reducibility tests.
According to their definition, LSE narrowing steps seem to be very
expensive, because a large number of subterms has to be tested. In this
paper, we show that many of these subterms are identical. We describe
how left-to-right basic occurrences can be used to identify and exclude
these identical subterms. This way, we can drastically reduce the number
of subterms that have to be tested. Based on these theoretical results,
we develop an efficient implementation of LSE narrowing.

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Categories,
Keywords:

Narrowing, Logic and Functional Programming, Implementation, E-unification

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Correlation

MPG Unit:

Max-Planck-Institut für Informatik



MPG Subunit:

Programming Logics Group

Audience:

experts only

Appearance:

MPII WWW Server, MPII FTP Server, MPG publications list, university publications list, working group publication list, Fachbeirat, CCL bibliography


BibTeX Entry:

@ARTICLE{WernerBockmayrKrischer98,
AUTHOR = {Werner, Andreas and Bockmayr, Alexander and Krischer, Stefan},
TITLE = {How to realize {LSE} narrowing},
JOURNAL = {New Generation Computing},
YEAR = {1998},
NUMBER = {4},
VOLUME = {16},
PAGES = {397--434},
ISBN = {0288-3635},
}


Entry last modified by Uwe Brahm, 03/12/2010
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Editor(s)
Alexander Bockmayr
Created
09/29/1998 11:10:31 AM
Revisions
2.
1.
0.

Editor(s)
Uwe Brahm
Uwe Brahm
Alexander Bockmayr

Edit Dates
30.03.99 21:52:33
22.10.98 20:06:28
29/09/98 11:10:35