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CORR
2004
Springer
124views Education» more  CORR 2004»
13 years 7 months ago
On the existence of stable models of non-stratified logic programs
In this paper we analyze the relationship between cyclic definitions and consistency in GelfondLifschitz's answer sets semantics (initially defined as `stable model semantics...
Stefania Costantini
AGP
2003
IEEE
14 years 27 days ago
Ordered Programs as Abductive Systems
In ordered logic programs, i.e. partially ordered sets of clauses where smaller rules carry more preference, inconsistencies, which appear as conflicts between applicable rules, a...
Davy Van Nieuwenborgh, Dirk Vermeir
DMDW
2001
128views Management» more  DMDW 2001»
13 years 9 months ago
Improving Data Cleaning Quality Using a Data Lineage Facility
The problem of data cleaning, which consists of removing inconsistencies and errors from original data sets, is well known in the area of decision support systems and data warehou...
Helena Galhardas, Daniela Florescu, Dennis Shasha,...
ICLP
2003
Springer
14 years 24 days ago
Order and Negation as Failure
We equip ordered logic programs with negation as failure, using a simple generalization of the preferred answer set semantics for ordered programs. This extension supports a conven...
Davy Van Nieuwenborgh, Dirk Vermeir
DEXA
1994
Springer
92views Database» more  DEXA 1994»
13 years 11 months ago
OR-SML: A Functional Database Programming Language for Disjunctive Information and Its Applications
We describe a functional database language OR-SML for handling disjunctive information in database queries, and its implementation on top of Standard ML 12]. The core language has ...
Elsa L. Gunter, Leonid Libkin